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Whether fall makes you want to cozy up indoors, walk through the city, or explore the changing natural scenery, Hamilton has something for everyone.[caption id="attachment_50619" align="aligncenter" width="600"] Photo Credit: Lenok UA[/caption]Check out this list for 50 ideas on how to spend your fall in Hamilton and the surrounding area.[adinserter block="4"][adinserter block="15"]1. Events and FestivalsHamilton Comic ConThe Hamilton Comic Con returns for a two-day pop culture extravaganza at Hamilton Convention Centre. The event features exhibitors, artists, Cosplay, movie cars, free panels, and celebrity guests. September 21- 22, 2024Train Days with the Golden Horseshoe Live SteamersHead to the Hamilton Museum of Steam & Technology National Historic Site to catch a ride on a miniature train, operated by the Golden Horseshoe Live Steamers! Various model engines will be running on the miniature railroad track at the museum. September 22, 2024Ottawa Street Craft CrawlExplore local businesses, enjoy family-friendly activities, and browse the free vendor market featuring handmade goods. Live music and a free community workshop on September 28, 2024.Water Lanter FestivalWater Lantern Festival is a magical, family-friendly event where thousands of floating lanterns light up the water. This memorable experience will take place at the Bayfront Park on September 28, 2024.Fall Festival Weekends at Brantwood FarmsEach weekend Brantwood farms will be open to the public for a day of fall fun for the whole family. Enjoy pumpkin bowling, corn maze, obstacle course, super slide, haunted barn, and more activities and fun to keep all visitors entertained. August 31 - October 27, 2024Caledonia FairHappening at the Caledonia Fairgrounds, the Caledonia Fair combines the traditions of the country fair – livestock shows, home craft, food and the midway – with continuous entertainment to make Caledonia Fair a perfect Autumn outing for the entire family. September 26-29, 2024Cranberry HarvestVisit Cranberry Marsh and take part in an experience that is unique in Northern America!! See how 27 acres of marsh that produce around 300,000-400,000 lbs of cranberries are harvested! September 21 – October 27, 2024King James[caption id="attachment_347628" align="alignnone" width="960"] King James[/caption]This 120-minute comedy follows the evolving friendship of two Cleveland fans over twelve years, bonded by their love for LeBron James and basketball. King James explores the impact of sports on relationships and will play at Theatre Aquarius from September 25 to October 12, 2024.African Lion Safari Drive-thruDrive through the Game Reserve before they close on October 13th. African Lion Safari is home to over 1000 birds and animals.Events at Ancaster Fairgrounds Throughout the fall, Ancaster Fairgrounds offers events and shows including the Gem, Mineral, Bead and Jewelry show on October 5 & 6, 2024, Ancaster Lions Fall Craft Show on November 2 - 3, 2024, and the 174th Ancaster Fair to celebrate the best of Fall on September 19-22, 2024.Culture DaysCelebrate arts and culture with hands-on and behind-the-scenes that highlight the importance of arts and culture in our communities. September 20 – October 13, 2024Festival of Fountains - The Night GardenIndulge all your senses with a visit to the Whistling Gardens. Festival of Fountains - The Night Garden is an interpretive storytelling experience of music, water, and lighting that invites guests to explore the scenic 22-acre multi-award winning botanical beauty before nightfall, enjoy on-site friendly food and beverage hospitality, and showcase local pop-up talent. Saturdays, August 24 – September 28, 2024Fear FarmVisit Fear Farm and enjoy the world-famous hayride and outdoor haunts and the Hiller House. This is the fall event not too miss. Tickets will sell out so don’t delay. select dates, September 28 – October 27, 2024https://www.instagram.com/p/C_rZCD4AZxu/Rockton World’s FairRockton World's Fair is a four-day event showcasing a commitment to Agriculture, Education, and Entertainment and features Ag/Education Programs, Children's & Family Entertainment, Heavy Horse Show, 4-H Shows, Livestock Shows, Demo Derby, delicious food, entertainment, and much more. October 10 to 14, 2024The Haunting House 2Come and experience the ghoulish dance, drag and live performances of this promenade-style show in the haunting Studio Ethereal. October 19, 2024.Celtic ThunderEnjoy a musical journey through Irish culture, blending traditional and contemporary sounds November 16, 2024. Featuring iconic songs and rich harmonies, the show combines world-class production with Celtic Thunder's signature style and powerful performances.Mum ShowHamilton's favourite fall show will be back again this year! From October 4th to 13th the Gage Park Greenhouse will bloom with Chrysanthemums.A Hamilton Tiger-Cats GameAvid football fans rejoice! Hamilton is home to the Canadian Football League’s Tiger-Cats, with regular season games extending into late October.Mad MagicSee the extraordinary "Mad Magic" show featuring Professor Presto in an interactive performance that combines magic and science on October 19, 2024.Halloween Pumpkin PartyDon't miss Westfield's Annual Halloween Pumpkin Party on October 26th and 27th. Get into the Halloween spirit by wearing your favorite costumes and enjoy a day filled with traditional pumpkin games, scavenger hunts, pumpkin-themed cooking demonstrations, photo opportunities, and more.[caption id="attachment_298181" align="alignnone" width="1024"] Westfield Heritage Village[/caption]Sesame Street Live! Say HelloElmo, Abby Cadabby, Cookie Monster, and their friends from Sesame Street are coming to Hamilton to say hello! Join the celebration on November 29, 2024.Nasty Frames Indie Film FestExperience the Nasty Frames Indie Film Festival, Hamilton's newest and most audacious cinematic event presented by Video McNasties, showcasing the sleaziest, filthiest, and nastiest films from around the world on November 18, 2024.Holiday InnIrving Berlin's Holiday Inn follows Jim, who transforms his farmhouse into a lively inn featuring dazzling performances for each holiday. Filled with classic songs like "White Christmas" and "Blue Skies," the show will captivate everyone. various dates, November 1-24, 2024Marianas Trench[caption id="attachment_347629" align="alignnone" width="1200"] Marianas Trench; Core Entertainment[/caption]Marianas Trench will perform at FirstOntario Concert Hall on November 25, 2024 during their 2024 tour, featuring the new single "Lightning and Thunder."Remembrance DayJoin a special indoor service honoring veterans and active Canadian Forces at the Canadian Warplane Heritage Museum on November 11, 2024The Sound of MusicExperience The Sound of Music, a timeless family musical filled with beloved songs. Follow Maria as she brings joy to Captain von Trapp's strict household, in a heartwarming story of love, music, and courage. This classic story will be played at the Ancaster Memorial Arts Centre on December 1, 2024.The NutcrackerDon't miss the annual holiday magic of "The Nutcracker: A Canadian Tradition" by Ballet Jörgen, a beloved classic choreographed by Bengt Jörgen, set to Tchaikovsky's score, and featuring over 100 vibrant costumes amid stunning 20th-century Canadian landscapes. This heartwarming show follows Klara's dream journey through a winter wonderland filled with snowflakes, lumberjacks, Mounties, and woodland creatures. December 7, 2024Christmas in the WoodsCome join in the festive spirit with loved ones at Westfield Heritage Village's Christmas in the Woods event, taking place on December 8 and 15. The village will be adorned with charming seasonal decor, including swags, greenery, and traditional ornaments, while providing enjoyable indoor and outdoor activities for everyone to enjoy.2. Activities in (and near) the CityThe ShipWhether you’re looking for a bit to eat in the morning or evening, the Ship offers a delicious menu and craft beers. Burgers and brunch will never be the same.https://www.instagram.com/p/C_bTox2PqUF/Quatrefoil RestaurantSometimes the best thing to do is treat yourself – Quatrefoil will do just that. A fine dining experience that includes local ingredients and superb pairings, it has been rated one of the top ten newly opened restaurants in Canada.Canada’s Warplane Heritage MuseumInterested in planes and history? Check out Canada’s Warplane Heritage Museum, which boasts a complete collection of Canadian flown military aircrafts. Do not forget to attend the Remembrance Day service.Puddicombe Estate Farms & Winery Whether as a couple or with a group of friends, you can never go wrong with a visit to the Puddicombe Farms during the fall season. Puddicombe Estate offers tours and tastings of their award-winning vintages. Cider also available! They are also open for a variety of pick-your-own fruits from July to late October. PYO apples usually happens from late September to late October. Enjoy harvest fun time with wine & cider tastings, campfires, fall fun games, and more in October.You may like: Fun Farms to Visit in Hamilton During FallRoyal Botanical Gardens[caption id="attachment_206577" align="aligncenter" width="768"] Royal Botanical Gardens[/caption]Whether you’re interested in strolling through gardens, hiking trails, or taking courses or workshops, the Royal Botanical Gardens have something for everyone! Plan your visit during the Great Pumpkin Trail (October 18 to 20, 25 to 27 2024) to see hundreds of jack-o-lanterns - all lighted up!If you are visiting RBG during the fall, don't forget to check out the Rock Garden. Remarkable fall colours, water displays, flowering conifers, ornamental trees make it a wonderful place in the autumn season. Apart from fall colours, the RBG is made colourful by the blooms in the garden beds. Use the bloom calendar on the RBG website to check out which flowers are in bloom while visiting.Pumpkinferno: Places to See Enchanting Pumpkin Displays This October in OntarioThe Bruce TrailTo fully enjoy the changing colours of leaves in southern Ontario, it is a must to check out the Bruce Trail in the fall. The trail extends from Tobermory to Niagara, spanning over 890 kilometres. There are various places you can check out during the trail, including the Limehouse Conservation Area in the Halton Hills.Myrtleville House MuseumTake a step back in time and learn about the early life of Canadian settlers through the story of the Good family. The museum includes a blacksmith workshop, ice house, smokehouse, and gardens. A perfect fall day trip for people of all ages!Hamilton Farmers’ MarketA local favourite, the Hamilton Farmers’ Market is home to over 60 vendors, featuring international and national food, baked goods, flowers, and more! This year, the Farmer's Market will be operating from Wednesdays to Saturdays.[caption id="attachment_206252" align="alignnone" width="1200"] Hamilton Farmers’ Market[/caption]Spencer’s Gorge and Webster FallsFeel like chasing waterfalls? Spencer’s Gorge and Webster Falls offer stunning views and an even better photo backdrop, particularly with the changing colours of fall leaves in the area.Reservations are required for the following long weekends and daily during fall. Get your tickets here.The Escarpment Rail TrailBiking enthusiasts, this one is for you! Follow the historic railroad starting from downtown Hamilton and ride along part of the Trans Canada Trail. This is a moderately difficult trail that is 19 kilometers round-trip, recommended for experienced riders. The changing natural scenery during fall will make it all the more worthwhile![adinserter block="6"][adinserter block="15"]Corn Maze AdventuresFall just isn’t the same without the tall corn stalks that provide the perfect landscape for family fun. Check out the corn maze adventures in and around Hamilton!Apple PickingOpen throughout the fall, Wheelbarrow Orchards provides a variety of apple trees ripe for the picking. Be sure to try some of the homemade baked goods on your way out, including apple pies and butter tarts!You can also enjoy PYO apples at Carluke Apple Orchard.Whistling GardensVisit the National Award Winning, Internationally acclaimed and one of Canada’s only privately run Botanical Gardens and see why Whistling Gardens was recently voted as one of Canada’s Best Botanical Gardens. Explore nearly 20 acres where you can view over 4,500 different plants.Twin Valley ZooEnjoy a day at the 25-acre, family-run, wildlife park that is home to 80 species of animals including; Lions, Tigers, Wolves, Birds, Bears, Deer, Alpaca, Primates, and so much more!https://www.instagram.com/p/C_RFJo4p5qf/Dundurn National Historic SiteThe former home of Sir Allan Napier MacNab, Dundurn Castle is a stunning 40-room villa built in the early 1800’s. Explore the rich history of the former military encampment and of those who lived within its walls.PYO PumpkinsPick the perfect pumpkin for your fall decor, jack-o'-lantern or your favourite pie. PYO pumpkins are open at Lindley’s Farm and Dyment’s Pumpkin Patch.Ancaster Farmers Market Featuring local vendors, the Ancaster Farmers Market is a great place to source fresh and locally grown food. Be sure to take advantage of the last few weeks of harvest!Dundas Peak[adinserter block="3"][adinserter block="15"]Dundas Peak offers a beautiful lookout over Dundas and Hamilton. Ideal for those wanting a short and sweet hike and ideal fall views from the top.Reservations are required for the following long weekends and daily during fall. Get your tickets here.Farmhouse Artisan CheeseLooking to spice up your charcuterie board? Visit the Farmhouse Artisan Cheese shop to sample a large selection of cheeses and pick up some jams and chutneys on your way out!https://www.instagram.com/p/C_iiqEYOYUr/Six Nations Experience the Grand River Territory with the Haudenosaunee community through rich oral histories and traditions. Fall activities include canoeing along the river, walking trails, exploring the crafts of the Haudenosaunee people, and visiting the Chiefswood National Historic Site.Bogle SeedsThe Bogle family welcomes all to visit their family farm and historic barn. Observe how they process and mix their popular bird seeds.Goat YogaTriple C Farm offers goat yoga, the practice of traditional yoga with the playful antics of goats. They will climb on you and lay down to relax on you, they have also been known to fall asleep cuddled in your lap while you’re doing Lotus pose.The Workers Arts and Heritage A place where workers achievements are celebrated, the Workers Arts and Heritage strives to honour the history of all working people. Exhibitions and events change regularly, so be sure to check out the museum.ParisNo, not the one in Europe! Visit the ‘Prettiest Town in Canada’ this fall and relax on a patio, stroll through the downtown, or grab a bite to eat.[caption id="attachment_172624" align="alignnone" width="1200"] Downtown Paris[/caption]Bayfront ParkDescribed as a green oasis in the city of Hamilton, Bayfront Park is the perfect place to spend time at during those warm fall days that remind you of summer. Relax and enjoy your surroundings or rent a bike or walk along the Waterfront Trail.The International VillageHome to over 100 shops and services in the heart of Hamilton, the International Village is a popular place for dining and shopping.Wild Orchid Restaurant and CaféIf you’re looking to try out new restaurants, Wild Orchid is a great place to start. It serves award winning dishes, most notably their seafood ones, and has a rustic atmosphere that adds to the experience.Terra Cotta Conservation Area Experience the natural setting with trails running through forests, past fields, and lakes of the Niagara Escarpment. Pack a picnic and spend your day under a canopy of fall colours!Ottawa StreetNeed a relaxing day in the fall to stroll around town and do some window shopping? Ottawa Street in Hamilton is a charming spot to do just that!PaddlingTake a paddling trip from Paris to Brant Park and experience scenic paddle from a town setting into pristine wilderness! The fall colours will make your experience that much more memorable.Salmon Run[caption id="attachment_206356" align="aligncenter" width="1200"] Credit: Michael Hunter/Flickr[/caption]See salmon migrate upstream for spawning as the temperature falls at Bronte Creek in Oakville, Red Hill Creek (Kings Forest), Grindstone Creek (RBG Trails) and Spencer Creek at Dundas (Cootes Paradise Neighbourhood).Rattlesnake Point Conservation AreaFabulous lookout points, rock climbing, excellent hiking trails, picnic spots, overnight camping... Plan your day trip/overnight trip to the Rattlesnake Point Conservation Area. There are many trails that you can choose - from quick ones to overnight treks.Fifty Point Conservation AreaA perfect place for bird watching and fishing, Fifty Point is the place to go before the winter rolls around. The Fifty Point Lighthouse is a picturesque stop and must-see.Albion FallsHamilton is home to a wide selection of waterfalls, but Albion Falls is a must see! The beautiful cascade is accessed by an easy 5-minute walk and the memories of the fall backdrop will last a lifetime.Creative Insight PotteryTap into your creative side and take a fine arts class, pottery class, or attend an event at the Creative Insight Pottery in Waterdown. Check out the Fall term schedule and develop new skills from trained teachers!https://www.instagram.com/p/C_tQI06IWXk/Rock Chapel LoopHike this 6.3 km trail along the Niagara Escarpment that features Borer’s Falls, a 15-meter waterfall drop. This scenic valley is home to a diverse variety of rare flora and fauna.Eramosa KarstA unique natural area composed of forests, underground caves, and streams, Eramosa Karst offers several activities for fall days. Hike through the conservation area and explore all it has to offer.HalloweenWhere do you want to experience the best of scares?Tiffany Falls Conservation AreaOne of the more popular conservation areas dues due to the presence of two waterfalls - Tiffany Falls and Washboard Falls. This area is also an Earth Science Area of Regional Significance due to the exposed bedrocks seen here.https://www.instagram.com/p/BpVnjD9hDDk/Art Gallery of HamiltonVisiting the Art Gallery of Hamilton is the perfect activity for a crisp fall day. Browse historic or contemporary art styles or visit the current exhibition featuring an interactive augmented reality tour for visitors to experience in the Gallery.Carnegie GalleryLocated in Dundas, the Carnegie Gallery offers both exhibitions and an art shop. The space showcases contemporary Canadian artists and changes exhibitions every month. [adinserter block="3"][adinserter block="15"]Healing Salt CavesExploring Hamilton and the surrounding areas are bound to leave you needing some R&R. The Healing Salt Cave is a halotherapy wellness centre and holistic spa that offers a warm and relaxing experience, perfect for cool fall weather.[pt_view id="40b015buxl"]You may like:Christmas In HamiltonChristmas Markets and Fairs in HamiltonNew Year's Eve in Hamilton

Description J. M. BROWNING AUTOMATIC FIREARM Feb. 22,1927. 1,618,510 .Filed June 28, 1923 2'Sheets-Sheet l J. M. BROWNING AUTOMATIC FIREARM Feb. 22, 1927; 1,618,510 "Filed June 2a. 192s 2 sheets-sheet 2 edf? a x46y i f f ,za 70416670 E /g Y El; 55. .55.' @35 H5317.. i 3," "la parts are shown in elevation. Patented Feb. 22, 1927. 'PATENT OFFICE. JOHN M. BROWNING, 0F OGDEN, UTAH. AUTOMATIC FIREARM. Application filed June 28, 1923. Serial No. 648,275. My invention relates to automatic firearms of that description in which all operations of the mechanism, except that of the trigger, are automatically effected by the energy of recoil of movable parts. Y A main object of thel present invention is to provide an automatic pistol of this character which is strong, simple in construction, accurate, reliable and safe in operf ation, and easy and economical of manufacture. This object is attained by simplifying the mechanism employed in .firearms of this class by providing a novel improved 'construction and co-ordination of certain members of thel mechanism, thereby enabling 'these parts to perform several distinct functions and 'thus reducing the vnumber of component parts and by giving to all parts such form and organizing them in such manner that they may be readily assembled or dis- `assembled without requiring the use of any tools or accessories. Other and further objects and advantages of my new improvements will appear from the specifications and drawings in which I show and describe an automatic pistol incorporating my improvements in a preferred form. Also the utility and value of some of my improvements arenot limited to their use in an automatic pistol but they are equally valuable and useful in any automatic firearm of the recoil operated type. In the accompanying drawings: Fig. 1 is a front view of the forward porytion of the frame, the breech slide and the barrel of a pistol embodying my new improvements. Fig. 2 is a left-hand side elevation of said pistol. Fig. 3 is a central vertical longitudinal section through the forward portion of the arm, showing the barrel and breech slide in their forward locked position, and the trigger in its normal position. Certain of the Fig. 4 .hows the tagger and the parts 4mounted thereon detached, in a front view and in a left-hand side View; in the side view, the rear portion of the trigger is shown in a vertical longitudinal section. Fig.` 5 is a central vertical longitudinal section of a portion of the frame, including the trigger guard, 'showing' the trigger in elevation and in position for bodily downward movement to withdraw it from its seat inthe frame, the barrel having'been removed from the frame. Fig. 6 is a central vertical longitudinal section through the upper portion of the arm, showing the barrel and breech slide'in their rearward positions, and the trigger in its normal position. Certain of the parts are shown in elevation. y Fig. 7 is a bottom view ofthe breech slide with the breech bolt in place in the rear portion of said slide. Fig. 8 is a top view of the frame, showing the cartridge magazine, having a cartridge remaining therein, in its seat in the frame and also showing the slide stop in its relation to the magazine follower. Fig. 9 is a central vertical longitudinal section through a portion of the arm, showing the movable'parts in the position they occupy at the instant when a shell is being ejected; in vthis view the forward portion of the breech bolt is vertically sectioned in the plane of the ejector and the ejector with the part of the frame with which it is integrally formed are shown in elevation. Fig. l() shows the ejector and the part of the frame with which it is integrally formed, detached, in a'top view, in a left-hand side view and in afront` view. Fig. 11 is a left-hand side View of the magazine detached. Fig. 12 is a central vertical longitudinal y section through the upper rear portion of the arm, showing the barrel, breech slide and breech bolt in their forward position and the firing pin in the uncooked position, certain of theparts being shown in elevation. Fig. 13 is a central vert-ical longitudinal. section through theI upper rear portion of the arm, showing the breech slide and breech bolt some distance rearward of their forward position and the firing pin and Sear in the cocked position. Certain of the parts are shown in elevation.` Fig. 14' is a central vertical longitudinal section through the upper rea-r portion of the frame, as seen from the. right, showing the breech bolt in its forward position and showing also the connections between the trigger andthe sear. Certain parts 'are shown in elevation. Fig. l5 is a central vertical longitudinal section through the rear, portion of the are shown in elevation. breech slide and through the breech bolt with the safety piece in its lower position locking the sear and the breech bolt; an adjacent portion of the frame and a portion of the safety piece cooperating with thel frame and with the Sear, being each shown in vertical section but slightly to the left of the vertical central plane of the arm. Fig. 16 shows the extractor, detached, in ing the relative position of the slide stop and the magazine follower with one cartridge remaining` 1n said magazine. Certaln parts Fig. 20 is a vertical longitudinal section through the upper portion of the magazine and the adjacent portion of the frame, showing the relative position of the breech slide, slide stop and magazine follower after the last cartridge has been removed from the magazine and fired. Certain parts are lshown 1n elevation. Figs. 18 to 20 are on the same scale as 21 shows the slide stop, detached and on an enlarged scale, in a to view, in a rear view, and in a left-hand s1de view; the side view shows the lower portion of said Vstop in section and its upper portion in itsv operative relation to the breech slide. Figs. 22, 23, 24 and 25 show the safety piece, detached, respectively in a front view, 1n a left-hand side view, in a rear view with a portion broken away to clearly show parts mounted therein, and in a bottom view. Fig. 26 is a front view of the firing pin, .i detached. Fig. 27 is a vleft-.hand'side view of the firing spring. Fig. 28 is a rear. view of the firing pin, detached. l 29 and 30 show the sear, detached, respectively in a top viewvand-in a rear view, Fig. 31 shows the mainspring extended and a portion of the firing pin and the sear, in longitudinal vertical section and in their cooperative .relation with said mainspring. Figs. 32, 33; 34, 35,36 and 37 show the breech bolt, detached, respectively in a central vertical longitudinal section, in a rear end view, in a bottom view, in a front end view, in a transverse section'some distance pm and searinthe cocked position, -held togetherv by the pressure of the main-- back of its forward end, andin another transverse section slightly forward ofthe middle of the bolt. f Figs. 22 to 37,'inclusive, show the parts in their actual size. Similar reference characters refer to similar parts throughout the several views. The pistol represented in the drawings comprises a frame l having vertical longitudinal flanges l'1 prolonging its sides upwardly. Between the flanges the longitudinally movable breech slide 2 is secured against vertical movement and guided in its longitudinalk movements by rib and groove connections, as shown. See Figs. 1, 2, 3, 7, 8, 18, 19 and 20. The slide 2 is recessed to receive, at its forward portion 'the barrel 3 between its side walls, and in its rear portion the breech bolt il, detachably secured therein. The barrel 3 is supported and guided at its forward end by an inwardly projecting annular fiange 2l on the slide and, at its rear end, by the sides of a cam groove 3b formed in the downwardly projecting barrel lug 3a, the sides of the cam groove cooperating, for this purpose, with a fixed part of the frame, such as the transverse pin 5 extending Vthrough the rear portion of a recess formed in the frame 1 to receive the barrel lug 3a. See Figs. 3, 6, 9 and 12. lfVhen in their forward iring position, as shown in Figs. 2 and 3, the breech slide 2 and the barrel 3 are interlocked by the usual transverse ribs and grooves formed, respectively, on the upper rear portion of the barrel and in the under surface of the top wall of the breech slide (Fig. 3). In this position of the parts, a horizontal rearward extension of the upper vsurface of the 4cam groove 3b engages the top surface vof the transverse pin 5 in the manner clearly shown in Fig. 3.` The top surface of pin 5 is pref -erably flattened as shown. Upon the firing of a shot, the breech slide 2 and thejbarrel 3 recoil together until the forwardly and upwardly inclined lower surface of the cam groove 3b engages the pin 5, after the' bullet has left the barrel, thereby causing the rear portion of the barrel 'tobe cammed down during the further recoil movement and thusefecting the unlocking., of the breech slide and partly in a longitw' dnal recess in the forward portion of the frame and bearing through its guide rod 7 against the wall 1b in the frame, is compressed and said spring reacts to return the recoiling parts to their forward position as soon as the rearward movement of the slide 2 is arrested.- The barrel 3 remains in itsl rearward position, shown in Figs. 6 and 9, until the forward end of the breech bolt 4, during the return movement thereof withl the slide 2, strikes the rear end of the barrel, whereupon the parts move forward together, and said rear end of the barrel is, during such movement, again raised `to its interlocked relation with th'e breech slide by the inclined upper-surface of the cam groove 3" and is there held in such raised position by the hereinbefore mentioned horizontal exten,- sion of said camsurface, engaging the top surface of the pin 5. The forward movement of the barrel 3 and slide 2 is limited by the engagement of the front rounded face of the barrel lug 3a with the corresponding .rear face of the transverse-wall 1b of the frame. See Figs. 3 and 8. The inwardly projecting annular ange 2 at the forward end of the slide 2, in which the forward portion of the barrel is supported and guided, is of small width and there is sufficient play between said flange and the barrel to permit the slight tilting movement of the barrel for locking and unlocking said barrel and slide and also to permit the relative longitudinal movement between these parts, when unlocked, without binding or undue friction. In order to facilitate the dismounting and inspectionof the firing mechanism of the arm, all the parts of said mechanism are so constructed and arranged that they may be readily detached and withdrawn from the frame 1. To this end, the trigger 8 is removably pivoted in a vertical slot formed in the frame below the recess which receives the barrel lug 3, and a trigger pawl 9 is pivoted to the trigger to transmit the action of said trigger to the other parts of the firing mechanism, said pawl being located in a vertical slot provided therefor in the frame from which it may be removed with the trigger. To this end also, the remaining parts of the firing mechanism, which comprise the firing pin 10,-the main spring 11, the sear 12, and the sear connecting lever 13 for connecting the sear with the trigger and ltrigger pawl, are all mounted on the breech bolt14 so as. to be readily removable rearwardly from the frame'. Also mounted on the breech bolt is the extractor 16. The trigger 8 and its pawl 9 are in operative relation with the' remaining parts of the firing mechanism only when the breechv slide 2 is in its forward position with the breech-slide -and barrel locked and the breech closed. Then, the forward end of the sear -the trigger pawl 9; thus the arm cannot beA tired, even if the trigger is pulled back, until v, the breech slide and barrel are fully locked and the-breech closed. The trlgger pawl 9 1s normally held 1n a rearward posit-ion, as shown in Figs. 3, 4, 6,. 8 and 14, under the act-ion of the trigger spring 8a which has one end thereof bearing on a' rearward projection (Figs. 4 and 14) formed on the integral pivot 9a of said pawl. If t-he trigger is held back, after firing .a shot, until the breech slide 2 and the parts movable therewith return to their forward position, the upper end of the pawl 9 will be swung forwardly against the tension of the spring 8a during the last portion of such return movement by the engagement of the forward end of the sear connecting lever 13 with said pawl, and it will therefore be impossible to fire another shot untilc t-he trigger is released. TheY release of the trigger 8 will allow its return forward under the tension of its spring 8a (Figs. 3, 4, 6 and 14) and during such return of the trigger, the pawl 9 will be lowered until its upper end moves belowthe forward end of the lever 13, thereby permitting said upper end to return rearward, also under the tension of the trigger spring 8a, to its normal position beneath the forward end of said lever 13, thus positioning the firing mechanism for firing another shot by again pulling the trigger. back. It will be seen, by `referring to Figs. 3, 4, 5, 6 andI 14, that thetrigger 8, trigger pawl 9 and trigger spring 8a form a unitary organization of elements adapted for re"T moval as a unit from the frame; the trigger spring being for this purpose, secured to the trigger between. its ends and cooperating, at its forward vend, with theframe and, at its rear end, with the trigger pawl, as hereinbefore described. For the purpose of .easily dismounting said organization of elements, the cylindrical seats lin the frame for ,the trigger pivot are connected with t-he under surface of the frame by vertical slots of less lwidth than 4the diameter of said seats. iwhen the trigger is swung' forwardly 'be- 'lao lili lli yondits normal position, as shown in Fig. 5, against the tension of the trigger spring 8a, which by pressing the trigger pawl against the rear face of the vertical slot.i1i the frame in which said pawl is located yielding-ly opposes such movement of the trigger. In order to positively prevent the trigger from becoming detached accidentally by forward pressure on the lower finger engaging portion thereof, or otherwise, the trigger has a forwardly extending portion 8?, which by engaging the lower surface of the barrel lug 3'rl limits the forward movement of the trigger and thus prevents disassembling of the trigger unless thc barrel is first dismounted. See Figs. 3 and 6. The forward end of the spring 8aL protrudes forwardly from the slot in which it is seated in the upper forward port-ion of the trigger, and this end rests upon a shoulder formed for that purpose in the forward wall near the bottom of the trigger seat in the frame, thereby said spring 8n performs the. functions of a trigger spring by yieldingly holding the trigger finger piece in its normal forward position and by returning it to that position when released after each pull by which a shot has been fired. By normal position of trigger and pawl I mean the position shown in Figs. 3, 4, 6 and 1,4 when they are in position to actuate the sear connector to fire a shot. The breech bolt 4, shown detached in Figs. 32 to 37 inclusive, is substantially cylindrical in form and is provided at its rear. end with an enlargedportion which rojects rearwardly beyond the breech sli e 2, as shown in Figs. 2, 6 and 7. In order to secure the bolt 4 rigidly to the breech slide S, so that they may together form a heavy breech closure, a known fastening means is provided, comprising a series of ribs on the olt adapted to interlock, by giving the bolt a rotary motion after it has been inserted into the slide, with a corresponding series of grooves formed in the slide, 'as shown in Figs. 6 and 7. lTo prevent accidental rotary movement of the breech bolt in the breech slide, the breech bolt is locked by a. safety piece 14, shown detached in Figs. 22 to 25 inclusive, and in its assembled relation in Figs. 2, 6, 7 and 12 to 15 inclusive, this piece ,servinr at the Same time to close the rear end oi? the longitudinal seat formed substantially in the axis of the bolt 4 to receive the ring pin and the sear. vThe safetyl piece 14 slides, for these and other purposes, v as will be described later, in a vertical groove formed in the rear end of the breech bolt, being guided therein and locked against movelnent in a horizontal direction by the well known rib and groove connection.` A forward extension 14a at the upper end o1 piece 14 is adapted to extend into a corresponding recess formed in the top wall 'o1' the breech slide, as shown in Figs. 2 and 6, thereby locking the breech bolt against rotar movement. s is clearly shown in Figs. 26,27 and 28, the body portion ofthe ring pin 10 is cylindrical in form and mounted for longitudinal movement in the afore-mentioned seat in the breech bolt 4, said seat being of cylindrical form at its forward .portion and substantially rectangular in cross section throughout itsl rear portion, as is clearly Shown in Figs. 32, 33, 36 and 37. The tiring point l0n is adapted to protrude through an opening 4n (Figs. l5 and 32) therefor in the forward wall of the firing pin seat of the bre-ach bolt and the firing point and the opening therefore are positioned to be in line with the axis of the bore of the barrel when the barrel is in locked position and to strike the center of a cartridge seated in the barrel chamber. In the particular embodiment of my invention here shown, the firing point 10@L is eccentrically disposed above the center of the forward cylindrical portion of the in in order that it may properly contact with) the primer of a cartridge seated in the barrel chamber. The firing pin 10 is formed on the under side of its rear portion with a longitudinal guide rib 10 which projects into a slot formed in said breech bolt'below the firing pin seat therein. See Figs. 12, 13, 15, 32, 33, 34, 36 and 37. This rib forms a cooking shoulder at its forward end for engagement by the sear 12 when the parts are in the cocked position. The sear 12 consists, as shown in Figs. 12, 13, 15, 27, 29 and 30 of a member having two arms arranged substantially at right angles to each other and is mounted for sliding movement longitudinally of the breech bolt, as well as for the usual pivotal' Said movement to release the firing pin. of its vertical arm, which is guided in the rearward rectangular portion of the longitudinal seat in the breech bolt (Figs. 12, 13, 30, 34 and 37).` This laterally enlarged upper end of the sear arm serves also as the abutment for the main spring 11, being adapted to receive the thrust of said spring through a collar 15a formed at the rear end of the guide rod 15, a small tit-shaped projection on the rear surface of said collar entering a recess in the upper end 12* of the vertical rear arm of the scar (Fig. 31) to position theV guide rod 15 and spring 11. -The forward end of the spring extends into arm is formed with an upward projection 12b vforming a rearward 'shoulder which cooperates With the hereinbefore described cooking shoulder on the guide rib b ofthe firing pin 10. From the foregoing descriptio'n and the showing in Figs. 13, 15 and 27, it will `be seen that, when the forward end of the sear is swung upwardly to bring the rearward facing shoulder thereon in front of the cocking shoulder on the 'firing pin, the main spring 11 will be under compression and Vwill operate to keep the firing pin and sear engaged. The comparatively deep cooking shoulder on the rib 10b slopes downwardly and forwardly and co-operates with the corresponding cooking shoulder on the sear when the sear is in cooking position under the tension of themain spring to hold the firing pin and sear so iirmly united that they cannot be sep` arated by any unusual jars to which the pistol may be subjected. It will be noted that my form of Sear, in its relation to the firing pin and other co-operating parts, acts not only to cock and uncock the firing pin, but serves also, by its rear vertical arm, as the seat against whichI the rear end of the main spring bears, thereby permitting this spring to function not only as the main spring but also as a sear spring. This organization of sear andiiring pin makes a unit of these two parts when they are in cocked position, whereby the sear partakes of a portion of the longitudinal movement of the firing pin, whereby these two parts occupy a minimum of space, and whereby they may be readily inserted into and removed from the breech bolt as a unit. Also, when the parts are cocked and the breech bolt has returned toits forward position, the rear vertical' arm of the sear is vin position to be engaged by the safety piece 14 to be locked by said piece against movement to release the Firing pin, as hereinafter described. Along the lower portion of its horizontal arm the Sear 12 is widened to form longitudinal'ledges 12CA on the opposite sides thereof, 1 the upper surfaces of these ledges, when the horizontal arm of the scar is raised at its forward end, acting to guide'and steady the sear in its longitudinal movement by their engagement with the underside of the breech bolt, 4 at the opposite sides of the verpositioned to project under the lateral intical slot therein. 'The ledge 12c formed on the right hand side of the sear 12 has the additional function of providing a shoulder o f substantial width and length (Fig. 29) l ward extension 13a (Figs. 7 and 17) at the rear end of( the sear connecting lever 13. This lever is pivoted on a .stud 13h (Figs. 14, 34 and 36.) formed on the right hand side of the breech bolt. To' hold the lever on its pivot stud when the breech bolt is removed from 'the breech slide said lever may be' formed with a thin lip 13 at its upper edge adapted to project under va ortion of the extractor '16, thereby preventlng removal of the lever without rst removing the extractor. The automatic cooking of the armfis 'a downward projection 12d, which is located above a transverse recess 17 formed in the upper surface of the frame, as shown in Fig. 14, lwhenthe parts arein the firing position. If now, the trigger 8 is pulled back, it operates in the manner hereinbefore described, to raise the forward end and lower the rear end of the sear connecting levoer in such manner that the inward projection 13a bears upon the forward end of-the ledge 12c of the seary (Fig. 14) and thus depresses the forward end of the sear-12 to release the ring pin 10 to fire a shot, assumingthat a cartridge is located in the barrel chamber. When the rsear 12 is accordingly .held stationary be cause of theengagement ofthe rear surface of its downward projection 12d with the rear wall of the recess 17 and the engagement of the upper surface of projection 12b with the under surface of firing pin rib 10b, and since the firing pin 10 is constrained to move rearward with the breech slide 2 and breech bolt 4 the main spring 11 will be compressed against the vertical rear arm of the sear until the rearward movement of the firing pin has brought the cooking shoulder on its guide rib l()b opposite the co-operating shoulder on the sear 1-2. When the parts arrive in this position, the camming action offthe inclined rear surface'on the4 downward-proj ection 12d of the sear a ainslt the cgi-respondingly inclined rear wal of the rcess 17 iny the frame'and't "tension of thel main spring 11 together cause the sear to swing upwardy at its forward end to assume the position shown in Fig. 13. The downward projection 12d having left the (recess 17 in the frame, the Sear will now participate in the further rearward movement ofthe breech slide, the lower portions of the Sear being guided in .a shallow longitudinal groove formed in the \top of the frame' from the transverse recess downward projection 121V at the forward end of .thek scar 12 comes intok 'engagement with ortiony yof the yforwardwall ot the recess 1y kin the frame, the forward wall y -being- Lhigher than the `rear wall of saidk the kupper recess (Figs. 6, 14 and 15), and the sear and firing 'pinare thus prevented fromy takmg part in thek final movement of the breech A slide, therebyy bringing them in the cocked ioy condition to a rearward position in the breech bolt 4 as shown yin Figs. 14 and .1.5.y c f It `will be seen by reference to Figs. 14 and i fr 17-that the lateral inward extension'la at i. mate point in the pull of the trigger kwhen v the firing pin will be released. vBy making the kengaging surface of the extension 13a 4slope upwardlyy ina gradualr curve from front to rear, they point of Contact between y k"extension 13k and the sear ledgelwill move kso f force exerted on the sear and requiring fin-r rearwardlyalong the Sear ledge as thetrig-k ger is drawn rearwardly andthe ysear 1sy de`r pressed, therebyk decreasing ythe kleverage ycreased pull on the trigger as'the iringpoint is approached. kThis necessity for an `in-y creased pull on thek trigger gives they shooter f warning of the time of yrelease'of ther firing 1n. p If, while the parts are in the cocked position, shown in Figs. l14 and 15, it is desired to lockthe firing mechanism, vthis may be done through the co-operation of the safety piece 14 with a part of thefiring mechanism, namely, the sear 12, whereby sald scar is locked against movement to release the vfiring pin. For this purpose the safety piece 14 can be moved to a lower position, as' shown in Fig. 15. Inwardly projecting ribs 14" are provided at the opposite sides of the upper portion of a verticaL groove (Figs. 15, 22 and 25), into which groove the rear portion of the vertical arm of the sear 12 projects when the parts are in the firing position as shown in Figs. 14 and 15. The ribs 14" engage in corresponding grooves 12 (Figs. l15 and 29) formed in the opposite sides of the upper portion of said sear arm, and thereby lock the sear against swinging movement to release the firing pin. When moved to its lower position (Fig. 15) not only does the piece 14 1ock.their1ng mechanlsm, but' it also serves to lock the breech bolt 4 and consequently the breech slide 2 against rearward movement. For this purpose, the bifurcated lower end [of the safety piece 14 see Figs. 15, 22 and 24, 4A .isadapted to enter corresponding recesses on 'with the heads of the screws 21. n n n plungers 19are radapted toy engage corre-f 18 in the frame (Figs. 8, 10 and 15) when the safety piece is in-its lower position. In` order to retain the safety piece/14 either inits upper or in its lower positionsy andto allow it vto be readily shifted from yone position to the other at the will of the shooter, co-operating means are providedon said piece 14 and the breech bolt 4 Lfor yieldingly'holding thepiece in either position. To this end, the safety piecev is provided 'with a transverse seat in which are arranged [opposed plungers y19 actuated to project ylaterally from the safety piece 14 bya com mon spring 20.(Fig-24) theloutward more# ment of saidplungers beingy limitedby thek engagement of stopshoulders formed ,there spending recesses 22 and 23 (Figs. 32' and 33) formed in the sidewalls of the vertical groove in which thesa-fetypiece 14 is guided Lin the rear end of the bolt 4. "Thesere- -f cesses are yshallow and have'their edges tions of the plungers engaging said recesses' The' are correspondingly formed(see"Figs. 22, 23and 24),-whereby-r it is possible forthey shooter yby simply pressing upwardly on the ypiece 14 to moveit from' its' lower position where the plungers :19 are; inv engagement with the lower recesses 22 to the upper position, the plungersvbeing cammed out of the klower recesses 22 insomoving the safety fpiece'14 and rfinally snapping into the upper w y recesses 23 when theyare moved opposite s'ald recesses, and vice versa. Provision is made to prevent the accidental movement of the safety piece 14 'upwardly above the position shown in Figs. 2, 6, 12 and 13, and such limiting means may consist in having the vertical.. grooves at the sides of the safety piece 14 terminate short of the lower end of said member,`as shown in Figs. 22 and 225. In order to prevent injury to theparts, if the safety piece 14 should be accidentally moved to its lower position while the slide 2 is in its rearward position, the lower forward portion of. said piece is formed with a beveled surface (Figs. 6, 13, 15 and 23) and a corresponding surface is 'formed at the rear of the frame (Figs. 2, 6, 9 and 12 to l5) so that even if the slide 2-is' permitted to return forward vunder the tension of the reaction spring 6 when the safety piece 14 is in its lower position, no 'harm will result, because saidpiece will be automatically cammed up Vto its upper position by the engagement of its beveled surface with the corresponding surface on the/frame. ' The usuaitl'magazine` is shown as held by thev catch 31, F ig. 2, in a seat formed to receive said magazine in the downwardly extending'grip\portion of the frame, and is 'provided with the follower 25 which isthe cartridges are removed, by the follower spring 26 which is guidedat its upper end by the downward projection a on the follower, and which bears at its lower end against the bottom 24a of the magazine. As shown in Figs. 11, 19 and 20 the forward portion of the magazine is' ofless height than the rear portion which permits the front portion of the follower to project above the forward edge of the magazine when the last cartridge is gone. This is for a purpose about to be described. To indicate to the shooter that the maga. zine has become empty, means are provided to co-operate with the follower 25. when it rises to its highest position (Fig. 20) after the last cartridge has been removed from the magazine and tired,y to stop the breech slide 2 in its rearward position, as shown in Figs. 6 and 20. Such means may comprise a substantially cylindrical slide stop 27 having its lower portion extending into a hole formed in the frame just forward of the magazine seat and adjacent the left hand side of the fra-me. A light spring 27L secured at one end to the body of the slide stop," as shown in Fig. 21, and bearing with its opposite end against the wall of the hole, frictionally holds said stop either in its operative or in its inoperative position. Near its upper end the stop 27 is formed with, a rearward projection 27c which extends over the low forward wall of the magazine 24 into the path of the magazine followers 25. See Fig. 8. yNormally the slide stop 27 is in its inoper- Vative position shown in Fig. 19, where it permits unobstructed movement of the slide 2, but after thelast cartridge has been removed from the magazine, the follower 25 in rising to its uppermost position shown in Fig. 20, engages the rearward projection 27 c on the slide stop and lifts the same, when the'breech slide recoils after the firing of said last cartridge, so that its upper end projects into a recess 2c formed in the bottom of the left-hand wall of the breech slide 2, and holds the slide retracted near itsn rearwhich the slide stop 27 is depressed by simply grasping'the slide 2 andretracting it to its rearmost position, during which movement an inclined surface at the forward end of the recess 2' in the vslidev engages a .corresponding surface on the forward side of the upper end of the slide stop 27, thereby -camming` the stop to its lower inoperative position. The breech slide 2 can now be moved forward to tiring positlon, at the same time forcing the topmost cartrldge from the magazine into the chamber of the barrel and thus again conditioning the arm for continued tiring aslong as there are any cartridges in the magazine. It will be noted that the frame iswiderthan customary and the slide is carried inside the frame. The stop 27 can therefore cooperate with the slide and yet be entirely concealed within the frame where it can not be tampered with. A attened extension on the lower end of the slide stop-27 permitsl the slide stop to serve as a small screw driver if one is. desired. The cartridge extractor l16 (Figs. 14 and 16) is provided with the usual hook-shaped forward end for engaging the groove at'the base of a cartridge and is formed at its rear end as shown in Fig. 16 with a thin rounded extension 16b adapted to be inserted into a longitudinally extending hole on the breech bolt (Figs. 14 andv 37). The extractor is held against longitudinal movement by an inwardly projecting stud 16a near its front end engaging in a recess therefor in the bolt 4, and it is also held against vertical movement at its forward end by reason of its location between two projecting lugs on the bolt 4 (Figs. 14 and 35). The side of the bolt oppositethe extractor is formed with the usual forward projection (Figs. 34 and 35) to support the head of a cartridge on the side thereof opposite said extractor. The ejector 29 as clearly shown in Fig. 9, projects upwardly into a vertical longitudinally extending groove formed ,in the under side of the left-hand side of the breech bolt 4', and when the breech bolt recoils with the breech slide 2 after the firing of a shot, the extractor 16 'withdraws the cartridge case in- Fig. 9, where the ejector is shown pro-- jecting from the front face of the breech bolt and engaging the base of the cartridge to swing it outplaterally through the ejection opening in the right-hand side of the breech slide in the usual manner. For convenience of manufacture, the` ejector is. as shown in Figs. 8, 9 and 10, integrally formed at the forward portion of a piece 29a, constituting a part of the frame 1 of the arm but formed separately from the main body of said frame, being securely united to said body by any suitable means, such as the screws 30, shown in-Fig. 8. 'L' The main parts of the arm can be readily disassembled as follows: vThe magazine 24 'is removed by pressing ,in the magazine catch 31 allowing the magazine to dropout of the frame.' The breech slide 2 is now drawn rearwardly to its rearmost position, where the safety piece 14 can'be removed by downward pressure thereon. This leaves the rearend of the breech bolt 4 open for the withdrawal of the Afiring pin 10 and Sear 12 lll) y to be withdrawn rearwardly. By raising lli in the cocked condition shown in Fig. 27. After the withdrawal of these parts from thebolt 4, it can be rotated through approximately 90 to disengage the rib and groove connection, .locking t-he bolt to the breech slide, thereby permitting said bolt the forward end of the arm so as to cause the barrel 3 to remain in its rearward posi? provements and for the purpose of explaining the nature of my improvements, various features of my invention may be eniployed independently of the Irest and in hand-operated or other firearms of a different kind from. thatwhich I have described herein, and that various changes in the form and arrangement of the parts may be made without departing from the spirit of my invention. What I claim and desire to secure by Y Letters Patent is: ' means operative when said barrel and framel are in their forward rlng pos1t1on, to main-p 1. In an automatic firearm, the combination of a frame, a recoiling breech slide mounted for longitudinal movement on said frame, a recoiling barrel mounted for longitudinal movement relative to said frame, means for interlockin said barrel, -and frame, a cam on said. arrel and a transverse pin on said frame adapted to cooperate with said cam to render said interlocking tainsaid parts in their locked relation during the initial recoil of said parts and there- 'after to unlock said parts during their fur-v l ther recoil. 2. In an automatic firearm, the combination of a frame, a recoiling breech .slide mountedfor longitudinal movement on said frame, a recoiling barrel mounted for longitudinal movement relative to said frame, means for interlocking said barrel and frame, a cam on' vsaid barrel, and a transverse pin on said frame adapted to cooperate to render said interlocking means operativev when 'said barrel and frame are in their forward firing position, to maintain said parts interlocked during their initial recoil, thereaftento unlock said parts during their further recoil and to limit the rearward movement of thebarrel. breech slide and a recoiling barrel mounted thereon, said barrel being so mounted as to be capable of being tilted relative to said slide, means for interlocking said barrel and slide, a lug on said barrel extending into said recess in said frame and having a cam groove, and a fixed transverse pin in said recess positioned to cooperate with said vcam groove, whereby said barrel and slide' are held interlocked when in their forward firing position and during their initial recoil, whereby the barrel is tilted out of interlocked relation with said slide during their further rearward movement and whereby the rearward movement of the barrel is limited by engagement of said pin with ,the front end of said groove. l 4. In an automatic rearm, the combination of a frame, a breech slide mounted for longitudinal movement on..said frame, a barrel also mounted for longitudinal :movei ment relative to said fra-me, means for intei-locking said barrel and slide, a lug on said barrel having a cam groove, a cam pin on said frame, and an abutment onsaid frame, said cam groove and pin cooperating during the rearward movement of said barrel and slide to unlock said barrel and slide and to limit the rearward movement of said barrel and said lug engaging said abutment on the frame on the forward movement-'of said barrel and slide and limiting the forward movement of said barrel andA slide. 5. In a firearm, the combination of a frame, a trigger pivotallymounted therein, means whereby said trigger may be dismounted from said frame by rotating it a predetermined distance beyond its normal movement in one direction, and means to yieldingly oppose such rotation of the trigger. 6. In a firearm, the combination4 of av frame having a seat for the trigger pivot and a slot narrower than the diameter of said seat extending from said seatI to the outer surface of the frame, ind a trigger having a pivot with flattened sides permitting said pivot to be passed through said slot for assembly or disassembly of the trigger when the lsame has been rotated a predetermined distance beyond its normal limit of'movement in one direction. 7. .lIng aa' rearm, v*the 'combination of a frame, a trigger pivotally mounted therein, a trigger pawl pivotally mounted on said trigger, afcommon spring for said trigger and said pawl also` mounted on said trigger, and means whereby the trigger and the parts lmounted thereon may be disassembled.V as a unit from the frame by rotating said trigger a predetermined distance beyond its normal limit of movement in one direction. 8. In a firearm, the combination of a 3. In an automatic lirearm, the combinawliframe, a barrel removably mounted theretionof a frame having a recess, a recoilmg on, a trigger pivotally mounted in said frame, means whereby the trigger may be dismounted from the frame by rotating it a predetermined distance beyond its normal limit of movement in one direction, and -means comprising a part of said barrel for preventing such abnormal movement while the barrel -is in assembled position on the frame. 9. In, a firearm, the combina-tion 4of a frame havinga recess therein, a barrel having a lug projecting into said recess, a trigger mounted in said frame below said lug, and means whereby said trigger may be disassembled from the frame by rotation beyond its normal limit of movement in a forward direction, said barrel lug being so positioned as to prevent such rotation of the trigger while the barrel is in assembled position in the firearm. 10. In a. firearm, the combination of a frame having an abutment, a trigger pivotally mounted in said frame and deinountable by rotating it a predetermined distance beyondits normal limit of movement in one direction, a trigger pawl mounted on said trigger in co-operative relation with said abutment, and a spring mounted on said trigger and normally holding said pawl against said abutment, as and for-the pur- Vpose specified. 11. In an automatic firearm, .the combination of a frame, a reeoiling breech slide, a recoiling barrel, means for interlocking said barrel and slide when in their forward pos'tion, a lug on said barrel having cam surfaces, a cam pin on said frame, and a trigger pivota'lly mounted in said frame, means whereby said trigger may be removed from said frame when it has beeii rotated a predetermined distance beyond its normal limit of movement in one direction, said lug being so positioned as to co-operate with said cam pin to unlock the barrel and frame during their recoil and to engage said trigger when it is rotated beyond its normalposition Aand thereby prevent disassembly of said trigger from said frame when the barrel is in assembled position in said firearm. 12. In an automatic firearm, the combination of a frame, a trigger mounted in said frame` a breech closure .mounted for longitudinal reeiprocatory movement on said frame` a. spring-actuated firing pin and a seal' for holding said firing pin in cocked condition, both carried by said breech closure, a sear connecting lever mounted on said closure, and means operatively connecting said trigger and said lever only when the breech closure is in its forward position. 13. In an automatic firearm, the combination of a frame. a trigger mounted in said frame, a breech bolt mounted for longitudinal movement on said frame, a firing pin and a sear carried by said. bolt, a. sear connecting lever mounted on `said bolt, and means operatively connect-- ing said lever with said trigger, said means comprising a trigger pawl pivotal'lyl and yieldingly mounted on said trigger whereby it will yield longitudinally of the frame if the trigger is held back when the bolt moves to its forward position and will return into operative relation with said lever upon the release of said trigger. 14. In. a firearm, a breech bolt having a longitudinal seat, a firing pin mounted for longitudinal movement in said seat, a -mainl spring therefor, and a sear mounted in said seat and forming an abutment for said main spring. 15. In a firearm. a breech bolt having a longitudinal seat open to the rear, a firing pin mounted for 'longitudinal movement in said seat. a main spring therefor, a sear mounted. in said seat and forming ,an abutment for. said main spring, and a closure for the rear end of said seat forretaining said firing pin, main spring and scar in assembled relation with said breech bolt. 16. In a firearm, a breech bolt having a longitudinal seat open to the rear, a firing pin, main spring and sear independent of said firing pin insertable as a unit into said seat through said open rear end, and a closure for the rear end of said seat for retaining said firing pin, main spring and Sear in assembled relation with said bolt. ' 17. In a firearm, a breech bolt, a firing pin having a cooking shoulder, a main spring having one end thereof bearing against said firing pin, a scar serving as an abument for the other end of said mainspring and hav' ing a shoulder for operative engagement with the cooking shoulder on said firing pin, whereby said mainspring serves to hold the firing pin andthe sear together in the cocked condition, and a seat in said breech bolt in which the firing pin, mainspring and sear are mounted for longitudinal movement whereby said bolt and said pin, spring and sear may have relative longitudinal movement. f- 18. lIn a firearm, a breech bolt having a i longitudinal seat, a firing 'p in, main spring' and sear insertable as a unit into said seat in the cocked condition` a closure for the rear end of said seat for retaining said firin. A pin, main spring and sear mounted in sai seat, said closure bemg'adapted to lock the sear against movement touncock the firing pin. 19. In a firearm, the combination of a breech bolt, a firing pin and sear mounted in said-breech bolt, said-firing pin and said sear Ihaving cooperating rocking shoulders, said sear having an abutment, and a main spring bearing at one end against the firing pin and at the othen'against thek sear abutresponding locking grooves and ribs, respecment, 'whereby said spring will yieldingly hold said cooking shoulders in cocking engagement. 20.l In a firearm, the combination of a firing pin having a cocking shoulder, a floating sear having a horizontalarm with .a cooking shoulder to cooperate with said shoulder on the firing pin and a vertical arm, and a spring abutting at one end against lthe firing pin and at its oth`er"-end against said vertical scar arm, whereby when the' cooking shoulders are in cooking engagement said spring will be compressed and yieldingly hold said shoulders in firm engagement. d ' 21. In an automatic firearm, the combination of a frame, a breech'bolt mounted vfor longitudinal movement on said frame, firing mechanism movably mounted in said bolt, Yand means carried by said bolt for simultaneously locking said mechanism againstfiring movement and said` bolt against longitudinal movement on the frame. 22. In an automatic firearm, the combination of a frame, a breech bolt mounted for longitudinal movement on said frame, a spring-actuated firing pin carried by said bolt, a sear also carried by said bolt and i operative to hold said firing pin in cocked condition, and a slidable safety vmember mounted on said bolt and movable to lock said sear against movement to uncock'said .firing pin and to lock said breech bolt against longitudinal movement. 23. In an automatic firearm, the combination of a breech bolt, a spring-actuated firing pin mounted in said bolt, a sear mounted for pivotal movement in said bolt and operative to cock said firing pin, and a slidably safety member on said bolt, said Sear and said safety member being formed with cortively, whereby said safety member may be moved to interlock said grooves and ribs and thereby to prevent movement of said 'sear to uncoek the firing pin. 24. In an automatic firearm, combination of a frame, a breech bolt mounted for longitudinal movement on said frame, a firing pin andv a sear mounted for longitudinal movement relative to said frame, and means for holding the sear against rearward movement during the initial rearward movement of said firing pin' after firing a shot1 whereby the firing pin in its rearward movement engages with said Sear to automatically cock. .said pin. v25. In an automatic firearm, the combination of a frame having a shoulder, a breech bolt mounted for longitudinal movement on said frame, and a spring-actuated firing pin and a Asear having cooperating cooking shoulders and both mounted for longitudinaL movement, said scar having a shoulder cooperating with the shoulder on the frame to hold the scar against rearward movement during the rearward movement of said bolt and firing pin after firing a shot and until said cooking shoulders engage each other, whereby the firin pin in its rearward motion with said bo t engages with said scar to automatically cock said pin. 26. In an automatic firearm, the combination of a movably mounted firing pin, a movably mounted Sear having an vupwardly extending arm and a forwardly extending arm, a, main spring abutting at one end against said firing pin and at its other end against said. upwardly extending sear arm, and cooperating cooking shoulders on said forwardly extending scar arm and said firing pin, whereby the said spring will hold said shouldersv 1n firm cocked engagement and whereby the firing pin and sear, when4 cocked, can be moved as a unit. 27. In an automatic firearm, the combinat-ion of a recoiling firing pin, a longitudinall movable scar, cooking shoulders on said firing pin and scar, an abutment on said seal', a main spring bearing at one end against said firing pin and at the other' against said sear abutment, means for holding said seal' against rearward movement on the initial recoil of said firing pin, whereby said cocking shoulders will engage to cock said pin and said pin and sear will thereafter move rearwardly together, means for arresting the forward motion of said firing pin and sear and means for uncocking said pin whereby it will move to full forward position to fire a shot. u 28. In an automatic firearm,`the combination of a frame, a breech bolt mounted for longitudinal reclprocatory movement on said frame, a firing pm and afsear both mounted for longitudinal movement in said bolt, cocking shoulders on said )in and seal', iin-inclined surface on said rame and a like inclined surface on said sear, said surfaces coment during the initial recoil of said bolt and pin and until said in has reached a position where said cQckmg shoulders can engage. each other and then moving said Sear to cock said pin. 29. In an automatic firearm, the combina# tion of a frame having a transverse recess formed in its up er surface, a longitudinall movable breec 1 bolt, a firing pnmounted for longitudinal movement in said bolt and having a depending longitudinal rib forming a cockin'g'shoulder, a main spring for actuating said firing pin, and a scar mounted for.1ongitudinal and pivotal movement in said bolt and serving as an abutment for the main spring, said sear having a forwardly extending armbelow` said firing pin provided with a rearward facin shoulder for firing pin and provided also withv a downward projection near its forward lend arranged above said transverse recess in the frame'when the parts are in the firing position, said projection. entering said recess when t-lie sear is moved to uncock the firing pin and being held therein by the engagc' nient of said sear arii'i with the under surface of said depending rib on the forward movement of the firing pin to fire a shot and said sear projection being held in said recess during the initial rearward movement of the firing pin and bolt whereby the antoiiiatic cocking of the arin is effected. 30. In an'automatic firearm, combination of a frame having a transverse recess with a high front wall and a low rear wall, a longitudinally movable breech bolt, a longitudinally movable firing pin, a iii-ainv spring, a longitudinally movable scar, co-opcrating cocking shoulders on said scar and pin, a downward project-ion on said sear positioned above said recess when the parts are in their I cocked firing position, said projection entering said recess when the sear is moved to uncock the firing pin, the said low rear wall of said recess engaging said projection to hold the sear against rearward inoven'icntduring the initial recoil of said bolt and pin whereby said rocking shoulders engage each other and said high front wall engaging said projection on forward motion of said pin and sear to hold said scar against full forward mo-v tion and to hold said pin from full forward motion until said cocking shoulders are disengaged, and means for diseiigaging said cooking shoulders. 3l. 1n an automatic firearm, the combination of al frame, a breech slide mounted for longitudinal reciprocatory movement on said frame, a breech bolt adapted to be secured in said slid )y a rotary movement, and a safety men'i'ner inovably mounted on said breech bolt and adapted to be at Will moved into either of two operative positions, said safety member, when in one of said posil tions, being adapted tolock said breech b`olt lagainst rotary movement and, when in the other of said posit-ions, beingadapted to also lock said bolt and slide against longitudinal y,movement on the frame. 32. In an` automatic firearm, the combina tion of a frame having a locking recess, a breech slide'mounted for longitudinal recip rocatory movement on said frame, a breech bolt adapted to be secured iii'said slide by a rotary motion, a vertically slidable member at the rear end of said bolt and adapted to be at will moved into either of two opera tive positions, said member, when in its upper position, locking said breech bolt against rotary movement and, when in its lower position, also locking said bolt and 'de against longitudinal movement by reasoniof vthe engagement of its lower portion with said locking recess in the frame, and meansl for yieldingly holding said member in either position. 32h In an a'utomatic firearm, the combination of a frame having a recess at itsA rear end, a breech bolt mounted for longitudinal reciprocatory movement on said frame, a safety member mounted for vertical Inovenient at the rear end of said bolt, said safety member being constructed and arranged, when in its lower positionyto cooperate with said recess iii the frame to lock the breech bolt in its forward position, and correspending cani surfaces at the lower end of said nieiiibei' and at the rear end of said frame, respectively, said surfaces cooperating, if the safety' member is moved to its lower position while the breech bolt is in a Jrearward position, to automatically move said safety member to its upper position during'the forward movement of said bolt. 34. 1n an automatic firearm, the conibination of a frame, a breech slide mounted for llongitudinal movement on said frame, a breech bolt adapted to be secured in said slide` firing mechanism inovably mounted'in said bolt, a safety member slidably mounted on said breech bolt and adapted to be at will moved into either of two operative positions, said safety member, whenin one of said positions, being adapted to lock said breech bolt from movement, relative to said slide and to also lock said firing mechanism against firing movement, and means `for yieldingly holding said member in either posit-ion. 35. In an automatic firearm, the combina tion of a breech bolt having a longitudinalv iio tion in said bolt, and means on said closurel for locking said, sear against movement to uncoek the firing p1n. 36. In an automatic firearm, the combina tion of a reeiproeatory breech slide, a breech bolt, means for interlocking said breeclr bolt with said slide, a longitudinal seat in said bolt 'open at the rear, a firing pin land sear mounted for longitudinal nievenient in said seat,- a closure for the rear end of said seat inovably mounted at the rear end -of said bolt, means on said closure forflocking said'bolt from disengagement withsaid slide, and means on said closure for locking said sear from movement. ' .37. In' an automatic firearm, the combination of a frame' having a substantially vertical magazine seat therein, a cartridge magazine removably held in said seat and having a low forward wall, a spring actuv below said side wall of the breech slide, a spring for frictionally holding said stop against movement, said stop having a rearward projection extending over the low for ward wall of said magazine into the pat-h of said follower, whereby said follower, after the last cartridge has been removed from the magazine and fired, lifts the slide stop to cause its upper end to project in. front of the rear wall of said recess, there'- by stopping said slide in a rearward position, and cooperating surfaces on the upper end of said stop and on the forward wall of said recess, res iectively, whereby the stop may -be autolnatlcally depressed to its inoperative position by manually -retracting said slide rearwardly on the frame. 38. In an automatic firearm, the combination of a frame, recoiling mechanism mounted on said frame, a cartridge magazine and a follower therein, means mounted inside the frame and positioned to be actuated by engagementby said follower when in its raised position and the magazine is empty to engage said recoiling mechanism and stop its normal return movement after recoil, and means on said recoiling mechanism'whieh will engage said stop means on retraction of said mechanism and return it to its normal vnoncngaging position when free from engagement by said follower.v 39. .In an automatic firearm, the combination of'a trigger, a firing member, a sear, means for-engaging said Sear-with said .firing member to cock the same, means for operatively connecting said trigger with said scar, said means comprising a connecting lever positioned to engage said sear and to be engaged by said trigger, and means whereby the pointof contact betweensaid l lever and said sear is, during the pull of the trigger, shifted in such manner as to decrease the leverage exerted by vsald lever andV thereby necessitate aneincreased ull on the trigger as the moment of uncockm'g the firing member is approached. '40. In an automatic firearm, the combination of a trigger, a firing member, a` sear, ' means for engaging said sear with said firing member to cock the same, a connecting ,lever positioned totransmit motion of the trigger to said scarto uncock said firing member and engaging surfaces on said lever and said scar, one of said surfaces being substantially' convex whereby the point of contact between said surfaces is, during the pull on the trigger, shifted to decrease the. leverage exerted by saidlever on saidv scar to thereby necessitate an increased pull on the'trigger as the moment of uncocklng the firing mechanism is approached. 41. In an automatic firearm, the combination of a breech bolt, a firing pin, a' senr, a Sear connecting lever removably and pivotally mounted on said bolt, an extractor removably mounted on said bolt, and means for securing such extractor against movement relative to said bolt, said extractor overlying a portion of said lever and thereby holding the same in operative position on said bolt. 42. In an 'automatic firearm, the combination of a breech bolt, a Sear, a scar connector pivotally mounted on said bolt, said con` nector having a projecting lip portion, and means on said bolt to overlie said lip portion and hold said connector 'in operativel position on said bolt. i 43. In an automatic firearm, the combination of a breech bolt, a sear connector pivot ally mounted on said bolt and having a projecting lip portion, and an extractor mounted on said bolt, said extractor having a rearwardly extending portion overlying said lip and thereby holding said connector in operative position on said bolt. 44. In an automatic firearm, the combination ot' a frame. a trigger mounted in said frame, a breech closure mounted forlongitudinal recipromitory movement on said frame. a spring actuated firing pin and a sear for holding said firing in in cocked condition both carried by said breech closure, a scar connecting lever, and means operatively connecting said trigger and said lever only when the breech closure is in its forward position. 45. In a firearm, a combinationvof a firing pin'having a cooking shoulder, asear having a horizontal arm provided with a shoulder to co-operate 'with the, shoulder on the firing in and a verticaY' arm, and a spring bearlng at one end against the firing pin and at its other end against said vertical sear arm, whereby, when said shoulders are in engagement, said spring' will be compressed and yieldingly keep said firing pm nlu and sea'r together to permit assembling or l disassembling these parts as a unit. vThis specification signed and witnessed