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Description Patented Sept. 3, 1912. 7 SHEETS-SHEET l. R. GRBUZBAUB', DBGD. H. H. 0. ORBUZBAUB & @.LUNxVIIOHOLB, EXEOUTORS. v MOTOR. v APPLICATION FILED JULY 7, 18.88. Wtuesses: R. GREUZBAUR, DEGD. H. M. ew o. OBBUZBAUR & G. o. NIoHoLs, EXBoUToRs. 'I SHEETS-SHEET Z. llllllll/llll/l/l/ll/ll Patented Sept. 3, 1912. ` APPLICATION FILED JULY 7, 1888. Inventar z wwlhfless'esk R. CREUZBAUR,' DEGD. H. M. (J. GREUZBAUB. n G. G. NIGHOLS, EXEOUTORS. MOTOR. APPLICATION FILED JULY 7, 1888. 1,037,842, Patented Sept. 3, 1912'. 7 SHEETS-SHEET 3. Fig-8 i A31 ITwentm z R. GREUZBAUR, DECD. H. I. a o. oBnUzBAUB a a. o. NIoHoLs, nxBoUTong. l nrmonloxliggg JULY 7, laas. `1 ,037',842. Patented Sept 3,1912. 'l SHEETS- SHEET 4.' J @Q oo. G O O A@ o o No oo. o. Y 9W ...No 0. mm om, om .....-.m w E mm. u m w www# f www. Q L m. Mmmm a ww. Q @N o q @N 5u o d 2r H Wtnesses z n/ w j wm. M , R. 'CREUZBAUR, DEGD. E. M. a o. GBLUZBAUR L G. o. NIoHoLs, LxLoU'roRs. ' MOTOR. APPLICATION HLLD JULY 7, 188s. 7 SHEETS-SHEET 5. s 1,037,842. y Patented Sept. 3, 1912. o n o o Witnesses Inventm' R. CREUZBAUR, DECD. n. M. am o. oREUzBAUR a G. 0.1noHoLs, BxEoUToBs. A MOTOR. 1,037,842. APPLICATION :FILED JULY 7, 1888. Patented Sept, 1912. '1 SHEETS-SHEET e. /Vimesses: V a @am H. u. a: o. OBBUZBAUR a G. o. NICHOLS, nxnoUToBs. . MOTOR.' ' APPLIGATION FILED JULY 7, .1588. ' Panentedvsept. s, 4191.2. 'l SHEETS-SHEET 7.' Invenbm To all whom it may concern.' UNITED STATES' PTENToFFrcn; N nonnn'r cnnuznaun, oivniwv Yoan, N.' Y.; HELEN M. Cnnvznaun' Nncannxii'i cnnUznaUn, ois-.BROOKLYN Naw 'ironia .um einen c. NIcnoLs, c1fNnw' Yonx, N. r., nxncu'rons or SAID nonnnr cnnuznann, nllzcriaalni'` KOTOR. Be it known that I, ROBERT CREUZBAUR, 'a citizen of the United States, residing inv the city of New York, in the county ofKings and Stateof NewYork, have invented eertain new and useful Improvements in Motors; and Ido hereby declare the followin to be a full, clear, and eizact description o the. invention, auch as will lenable others skilled in the art'to which. it pertains to make and 'use it, reference being had to the accompanying drawings,l lwhich form partof this specication. i y My invention relates to that class of motors in Which a constant mass of elastic fiuid is alternately heated and'cooled with corresponding increase and decrease of ita` pressure or volume or both during each cycle of the working piston motion, such different pressures acting constantly upon such piston without an intervening valve; no exhaust ofv such fluid taking place.' The type of Such, motor is'best illustrated by the Stirling 'air engine as patented bvtJamesStirling and. by Robert shining ai 1816, 1827 and 1840'. The main in'iprovement herein described isthis: Intlie said Stirling motor the elastic working ymedium used is shifted.. from the hot to the cool end yof itscontaining vessel, and vice versa, by areciprocating'displacer. Whereas in the motor herein described the elastic medium auch asair or steam, is so shifted by means of a rotating displacer, the. Amotor being modied accordingly, thereby` gaining great advantage. I attain my objectiby the mechanismillustrated in the accompanying drawings in which` i" i#Figures 1 and. 2 are vertical cross-sections .at right angles to each other of a `'sin le act-` ing motor, Figi centrally through ig.2g and Fig. 2 along the line 2-f2 Fig. l1. Fig. 3* is a horizontal section along theflnef--fol Fig. 1. The Figs. 1 2 and 3l represent. a motor for small power, in which the heating and cooling parte are made integral; Where-A as in the constructions represented by all the other figures,\.they are made separately With non-conducting packing between them. Figs. 4; and 5. are nearly central A#Elections at right. angles tofeach other, representing one type of a double motor.' Fig. 6 .isa vertical central section of another type of-l duble acting. motor driving a .,punip.. 6" .is ' Specincation of Letters P'atent. Application am my 7, isss. serial 'Na 328.345 .a transverse section along the BNIB-....61 Fig. 6. Fig. 7 represents a cap'iised inf pincel of the p uinp, when the Inotor is doing 'other-.2 r-work. Fig. S, is a Vertlcl section `ittflfiglltl Patented sept. 3,1912; langles to Fig. 6 along the. line 8-8. Fisgf, '9, 10,111 and 12 show details oftheregu-- lating vessel A, upon a scale double that of `the last five figures; Fig. 9 being a v.partial-.f ycross-section along the linel 9er-.8 tFig; 15, Fig. 10 a horizontalplanA along the linel L10-l0 Fig. 11,-Fig. 11` -avertica'L section' along the line 11?.-11 Figfl.; and 12,' ja vertical central sectionalongvytlieldine' 'l2-12 Fig. 10. Fig. 13 is a-vertical seeti'onj .ing` in the direction in icated. bythe arrows.; front parts beinghroken away to. show the internal construction with' a modicatien of Lthe cover of the regulator Ag'. Fig. .14' is a` horizontal section along the-line 14-14 Fig. 8, and a plan view o f the parts below that Iline. -The-m'otors represented -by Figs. 6,.. "8, 13, and 14 are arranged with a weten .jacket -arondthe` cooling parta for use: 'withir as theprincpal or as a large partei fthe elastic Working medium, Figs. y15, 18,. v.20, 21 and 22 represent double acting motors in whichsteam isthe only or the principal. elastic working medium insed, no water Yjackets being in that case' required for .the coolin y parts. Fi 15j is an. elevation. l.with ront parts bro en awayto show,part,r Ioit ythe internal construction and partlyA in;` section, the regulator A being out along the,` A line 15-15 Fig. 20, showing its modification .when uscd in a double acting motor and with. ,steamas the Werking medium. WFig.: 16 is a. kcap to the working cylindengused when'no pump is attached v section along ythe line 17. 17;F1g,.8 show ing the construction of thegas burning .de-, 1 air tothea doubleV vice used, and ot the tubes feedin san'ie. Fig. 18 isan elevation o Fig.`r 17 is .a horizontal acting steam motor .driving n. pump, wt-hthe tion.. In moved, and a cap, shown inf.seet1on is at taohed over the-,end ,ot the. shaft, af zontal crossseetion of .stuffing box Fig, v1.8.. FigQisahonizontal section along the ag planet such )a work may be done. Similar letters and figures refer to similar parts throughout the several views. A is the regulating vessel, B, B the chamber in which the elastic medium, generally air or steam, is -heated and cooled, Bbeing the heatingV part, and B the cooling part. C, C are the rotating displacers, D is the power-piston and E its cylinder. F i's the gas burner-pipe. G, G are pipes feeding heated air gas-burner. His the fire-gas, or exhaust or smokepipe; I is a jacket more or less surrounding the regulator A through which jacket the lire-gases can be made to pass, after having done their duty in the motor. K is a lubricating-chamber under pressure. L is a lagging, or air space or other nonconductor of heat. M is asbestos or other packing obstructing the passage of heat. tothe The-motor represented by'Figs. l, and 3,' is single acting and of the simplest form. The chamber B, B is a horizontal cylinder its upper coolin part B being cast in one piece with its Iower heating part B, the chamber being open on the left, closed by a cylinder cover I), upon which the lubricatingchamber K may be formed integrally. The chamber in this modification of my invention, as well as in the others herein referred to, corresponds in shape to the shape of the Irotary displacer so that said displacer will act in relation to the chamber so as to cause the vapor to be heated in one part of the rotation and expanded in another whereby The working-cylinder E opens directly into cylinder B, B and may be cast in one .piece with it, together with regulating chamberA. The piston D is made long enough to'give guiding surface, and is arranged to travel close kdown tothe path of the displacer C, which rotates in the heating and cooling-chamber B, B', its inner end-face being concave correspondingly so as to reduce the clearance between the piston and the dis lacer to a minimum. The displaoers C, are cylinders, cutaway at the periphery as shown at C, soas to form a space or pocket for the working air or steam.l This cutting away of the periphery of the displacers may be done with a straight or concave contour, instead of the convex contour shown. vIn addition to the cutting away of the periphery, the ends may also be'cut away as shown in Fig. l and dotted in Fig. 2, whereby the bulk of steam or air isexposed to a greater heating or cooling surface.. If air or steam could be heated or cooled instantly, the center of the cut-awa portion of the displacer, operating as ,ind1- cated by the arrow, might 1n a single acting engine stand at the right Fig. 2, at rightangles to the connecting rod, the piston being at the upper end' of its stroke as represented. But as it takes an appreciable time for the air to heat or cool, lead is given to the cut-away part C5 of the displacer. The required lead of the displacer is from 60 to 70o for air and considerably less for steam, which, if saturated or cloudy, is far more rapid in taking ulp or surrendering heat. When the working-cylinder E opens directly into the chamber B, B with direct connection between the piston D and the displacer by connectino rod d, the displacer' has to be constructed in two parts C, C so that the parts C, C of the displacer are connected by crank pin N, and are rigidly kept apart at the proper distance, either by the end-taper of pin N as in Fig. l or by the shoulders upon the pin N as in Fig. 6, or by a separate sleeve surrounding pin N and forming such shoulders, not shown; such sleeve constituting the working-surface of the crank-pin, thus readily renewed. The two end-nuts a, n, keep the two pieces C, C, rigidly in place. The sleeve n1 has a free working it upon pin N and is rigidly attached to Ithe connecting rod d, by shrinking the latter upon the same. The sleeve n1 mayA be split on one side as -shown in Fig. 2, or on both sides, so that the wear may be taken up. The con necting rod d, is made thin, so as to reduce the dead space between the displacers C, C tions C, C left free by the rod, to the opening required for giving free passage for the air .or steam to and from the piston. The lower part of the piston is slotted as shown in Fig. 2, to give free play for the oscillations of the rod al, the slot being preferably formed upon a chill in casting it. The connectingrod d is rigidly attached to wrist-pin P, P which oscillates with it. This pin is made lin three parts. Its left-hand end P has a due working tit in the piston, its right hand end, -formed integral 4with it, is reduced to a core P screw threaded upon the outer end. At .the junction of P and P', the latter may be 'enlarged to form a square seat for rod d; or the rod-seat maybe round, a key P2 Figs. 1e -2 and 8 confining the rod rigidly upon t pin. A sleeve P3, of equal diameter and working surface with part P, abuts upon the lrod d, and is firmly forced home upon. the Asame by an annular nut I" of an outside diameter and finish equa] to that of P and P3. `Otherwise the piston D may be formed and packed in any usual way. f In Fig. 1 each of the displacers Cl is cast V lo@ v is" .zal , 'oolatesfthrough-tho-.same totheshaft. The mer-,sea integrally. .with a 'Shaft ma o', which sled-1 missible when the chamber. B, IBfis. open at the end. AThe'right shaft end-Q works in la sleeve-boxy @which mayibefse arate or may in cheap `machines be forme in i one' piece with end-cap R. Tokeep this -j'ournal cool, aswell as partiallyto cut oil theV passage of, heat from the shell 'of heating chamber 'B to" the shell of the cool-i-ng-chamber` B', a.' sleeve .1', lof heat obstructing-. material1 inten. B, .B1'.*The"left' hand shaft end Q, upon which the -ly andfiband Wheel` is vmounted works in the loose?. inside bearing sleeve .S and the other .smiling-box." ca S?, packing S2, intervening. `The shaft 5,. cated,-o1`i; ftheyright the -usual wa through as-eup, and `on the left throng v lubricating'fluid inf the reservoir Krenn i municating with-'.Bgil?,A through opening K1,- so that -thepressure in chamber B B'1 is constantly acting upon-:the fluid inthe res'q ervoir K; f Thislubricating'fluid is in contact with the.:porous: .pack1ng S, and perf common packingpmaybe separated midway gives to the fluid amorez'free admission to yits way through the intervening packing` diminishing .its,pressure,' before itcan reach the -fluidinthe wire coil, which is liquid. Furthermore vit has. `been' dis`eovered that when lubricating oil is confined the friction is reduced considerably, a still better ef'ect beingI produced by having it under'pressur'e, as herein provided for and shown in Fis 4&1 and 6.f vThis sealing andlubricating' is prevented :troniv escaping` along thefshaft by packing yS2 in Fig. 1and'pack1ng Kal-andA StinnFig. 6.' The space T labove piston Dis a (mshion-chamber` which is in free commu- Isoflnioationl with the cylinder-space under the piston, through channel t and portt-when the piston is at its extremeupward. position," port t being'ftheni uncovered, fbut.I at all other times covered-by the'fpistom l i. vCushio'n-char'nb'er T lis 'in communication, 'throughiport t, witli'fthe upper` part a of regulatorgA, a' valve a" opening upt'vafrdlyl intervening `betweeny 'the upper chamber a and.V lower chamber A/.vz From chamber ffA a channel a2 leadsupward into the open air; and when steam isused in the motor isl i covered-by a weightedgcap as, the weight-of whiohftogetherwlth the relative capaoIty-of' fchamberjT to' Jrhe displacemento'thepis- 'es ton vvregulatestnerpressure within ythe motor,A venes between box-sleeves g,- andfthe outside' bearing shell formed integrally .with the` heating and cooling'- shell `of thel chamber.- by a small coil of corrugated wire S8, which"` 'the-shaft "The pressure `11p/on the lubricate ing' huid-'through opening K1,.prevents leak-A age 'of the elastioworking' 1.lluid alongfthes aft,4 asv the .Huid in the .wire-coil SB is. under the same-pressure and etl'ectuallyseals in the fluid in-themotor, .which has to forcefbe` regulated in a similar manner. vimotor Figs. .1, 2 and 3 is arranged for use the means for heating the motdr being correspondingly proportioned and' 'regulated as hereinafter described; g s .U Figa-1 is a pistonrod which, when the rnoto-r .1s-used for 'pumpin passes out throughzistulling Ibox-tt an 1 connects di rectlylz'with'ithevpump piston-as shown. in Fig.. 6; the .pump boincq lsupported by three pillars U2 'I `igs. 1.9.11. 15.- The re ulator chamber. A l1s nearly is'urrounded y the 'jaolteti Figs. 1 and '3,.fthrough which more =.or less escaped tire-gasesarecaused tovpass, yas indicatediby the arrows, according to the position.v of the butterfly-valvel V, which l .maybe automaticallygoverned as below described. 'v f v:The-rnottni.is heated bygas, whichenters through pipe f, intov plpe F,f.the :entrance being arranged asa Bunsenburner, the suction throughl the'central'pipe ffdrawing air 46.23 '1"is's'mixture-ota1r andigas passes through-.the upper halffofpipe F to its extreme'. end, Where it entersthe lower half of pipe-F :and issues out of a number `of jet .holes '1,a1fFigs'. 2". and 17. The flames issuingI from -the-jet-holes around pipe F, heat the-ges therein on its.I way -tothejet openings. v@'.ihezf-two airpipes G, Gr-take in air, 'preferably at both ends, as shown'at one 95 end in: Fi 17.v This air passes along the loutsi'deha vesof the pipes G as indicated bythearrows becoming heated during vits passage through the pipe. Near the center the air enters the inside halves of the pipes, 'as shown: and issues at jet-holes 2, 2min- -with steam'as the medium for producing the power'and operates as follows. The chamber 'A'.of Vthe regulatonA.v is filled Withwaterfthrough ehannelu about to the height shown. i'lffhefflges being `mlmittedtoburner 14" is ignited, .the valve Visv closedso that all the escepefre-gases'aremade to Atravel throughithefgjacket I; around-.the regulator A, sof as tio/rapidly heat the' water and prolduce steam. icorresponding tothe ,weight of cap o, the motor acquiring the required temperatures-.while .the {inecessaryl steam is .forming-'in the regulator A.. The drainage. plu X, 'to .the rightigc` .1, at. the bottom Voliztl e: heating .vesslff:-B,11-beingwithdrawn, the v'air iri fthe motor, l hea'vier thanzisteam, ' is established in A and T. Assuming motor the piston being placed into its uppermost position. When air and condensedwater cease to issuey through the drain-hole X, the water being preferably carried off by an inserted tube,-plug X is replaced. The working steam may be made more stable by retaining t-he air in chamber B, B, instead of allowing it to escape by the removal of drainage-plug X. Insuch a case greater refrigeration can be applied to the cooling section B', and the refrigerating medium vmay be water, as with an engine worked with air perse; the temperature of the water being regulated to obtain the best results by cont-rolling the amount of water passing over the cooling surfaces as below described, diminishing it to increase its 'temperature and vice versa. The gas-flames pass to the left, Fig. l and rise as indicated by the arrows, through two openings dotted in Fig. 2, into the iues g, g, which are studded with heat-pegs, uni-ting in chamber g and escaping by smoke-pipe H. Thus far thesteam in the motor is of the pressure corresponding to the weight of cap a3 only. Motion being now given to. the fly-wheel, the piston descends, closing port t and enlarging the space T, with corresponding lowering of the pressure therein.y In consequence the valve a opens, and steam from space Av of the regulator enters space T, until equilibrium the pressure in chamber-A to be 18 lbs., that in chamber T being the same while the piston is in its lowest position, and assuming the displacement of the piston to be twice the capacity. of space T when the' piston is up the pressure in T will be nearly 3x18 or 54 lbs., just before t is uncovered by the piston. That post t being then uncovered, the steam in spaceT will rush into the space below the piston, thereby depleting the space T, so that duringthe next descent of the" piston more steam will pass from space A through valve a into space T; and soon, untll the pressure under t-he piston, when .in its uppermost position, is equal to the pressure above the, piston at the time port t is uncovered by it, which under the above assumption would be 54 lbs. When the piston is in its uppermost position, it has just completed its working stroke, therebyI depleting the steam under it of corresponding heat.; and as the steamv has then also expanded into its maximum space, the presis down, the steam has been compressed into its minimum space, and has been heated by being hurled by centrifugal force against the lower hot surfaces; it therefore has then about its maximum pressure. VWhile the minimum pressure` under the piston remains at 54 lbs. the steam in space T above the piston will rise and fall between 54x18 lbs., without delivering any steam through port t and without receiving any from space A. But as soon' as the minimum pressure below the piston falls below about 54 lbs., steam will again pass through space T as described.- Instead of a port t', covered and uncovered by the piston, a valve may be placed at any point 1n a channel t leading from the space `above the piston to the space below the piston such valve opening toward the latter space, as. shown and described in my Patent Number 623,137, dated April 18, 1899. `When the pressure in chamber A rises above that corresponding to the weight of cap a3, the latter will rise until the steam finds'vent through the lateral small ports a* therein. This motor Figs. 1, 2, and 3, on account of the resistance of the air or steam in chamber T, requires an abnormally heavy flywheel. This may be obviated by converting such a motor into a double-acting machine, as here below .described, in various forms. This single acting motor may be o erated for small power and particularly wit air, without regulator A, and with the space T above the piston open to the atmosphere. i Figs. 4 and 5 represent a double acting motor with rotating displacers, which may be bracketedtoa wall, with its working cylinder in a vertical osition, or bolted to the iloor, vwith the cylinder in a horizontal position; the two figures being central sections at right angles to each other. ,The piston D is coupled to the divided displacer C, C, as above described with referenceto Figs. 1 and 2. The oppositely located displacerC', C receives motion from shaft Q, .through three gear-wheels 3, 4, and 5 the wheel 3 being keyed to shaft Q, and the wheel 5 to shaft 6, xedly attached to displacer C', the middle -wheel 4. revolving upon a stationary stud 7. iThese gear Wheels are inclosed bythe casing 8. This motor 1s represented as being heated by steam entering through pipe 13. The condense wa-- ter may escape through the pipe 9 if the motor 1s a small one and located horizontally. Otherwise a special outlet for the condense-water is provided (not shown). Steam. being the heating medium, it has to be at a high ressure to obtain a high temperature of t e same in case the steam is also the working .medium used with the motor. When bisulid of carbon, or any other suitable substance of low boilin point is Vused as the working medium o the motor, exhaust steam from some other englne; or steam at a low or atmo heric pressure .may be used asa medium or heating the motor;the direct application of a coal-lire being impracticable. or heating bisuld of carbonv and similar vapor forming subing steam surrounds points. Such lheatthe central heating part of the motor, occupying jacket 10, which is insulated from the cooling parts 11, 11located lou opposite ends, by insulating packing` 12. Alf air is the medium used stances of low boiling, with the motor, with agas orlcoal furnace 'to heat its eentralpart or jacket 10, water through the end-jack-v would be circulated ets 11,11, entering at 13 and escaping -at 14. Either the .inlet 13 or the outlet 14 is provi-ded with a cock adapted to control the amount-of Water passing through the jacket -11, a reduction of the iiow increasing the pling the displacer C to thepiston D, by a `connect-ing rod d; the displaeer in that case also made in two par-ts. But ' par-ts B,-B thereof' being cast in one in one vpiece clamped by a set shown, .upon the this construction is faulty. in so far as such connecting-rod may stick -u on the dead point, or turn in the wrong irection, locking the motor. Figs. 6 to '14 inclusive represent a double acting motor, specially arranged as an airmotor, but also applicable as a steam-motor.` The modiiic-ationsapplied t-o this motor, as compared to Figs. 1, 2, are as follows: There are two cooling and heating chambers B, B the -two heating parts B, B'thereof being cast i-n one piece, and the two cooling ieee; the tw-o pieces being'separated by-as estos packing M; The' working cylinder E .is placed over one oftheSe chambers B, B in this ease over the left hand chamber: There are two corresponding one being formed in two to admit of the passage of the rod (Z, which cou-ples it to the piston D; and thc right one screw, as shaft 16, upon which shaft the nearest half of the left hand displacer is tixedly keyed, the cut away porti-ons C the two dispiacere beiner 180,0 from cach other. Between the twodispiacere the shaft 1G passesthrough bearing box 17 prefer-` v ably in two halves Fig. 6*, adj-usted for wear by setscrews 18. The raised col-lar upon box 17 abuts endwise against the casting, therebyI obstructing leakage. .This journal is oiled thro-ugl-i a tube 19 screwed into the casting, with a passage for the oil tothe shaft as-shown in Fig. 6. The `lubricating flu-id in chamber K, under pressure through port Kas named, flows to the shaft Q, through opening Kantl is confined within the split bearing boxS, on the inside by metal-packing rings parts, one C next being an annular 'piece C3 movable rotathe same by a set-screw placer -lead is thus made. adjustable. C being as an air-motor, awater chamber displacers the left? parts as deserzibed,` through KB and on the outside by packing S2 confined by gland-AS. Wear f QOPY in the box S is taken up by the set-screw K4 accessible by the removal of cap-screw K5. As the lead of the cut away parts C5 of the displacers should-not be the same with air and withsteam the displaeers are made rotatively adjustable Wlth relation to the crank N. To this end each half of the left hand displaeer is made in two concentric to the shaft, and the other ,and clamped upon C4. The cutaway portion C5 upon the perpher of the disbeing upon thls annu ar` piece, its The setscrew which confines-the right hand displacer to the shaft, is a ready means for adjusting the lead ofthis displacer to correspond to that of the other, therefrom. The dis lacers are preferably balanced in every irection, as shown in Figs. 6 and 8, and so that when adjustable forlead as described the core-piece C2 is balanced within itself, and the annular piece tively upon the piece C2, 'C3 is bal-ancedwithin itself as shown 1n `ig. 8. These displacers may be formed as heavy as their perfect balance will allow so as to serve las a y-wheel. Wherrused 20, jacket- 'infr the cooling parts is necessary. Through this jacket the water passes onits way to they pump 21 Figs. 6 and 8 4 Fig. 13 showsV a .transverse section of jacket 2O,l Fig. 1X1-showing a 4plan view of the same,.22 lbeing an air chamber, 23 a hand hole, 24 the inlet of the water, and 25 the -outlet leading to the ump 21. The course that is 180 of the Water e reversed, passing through the .'acket after passing through the pump. hen used as a steammotor no water. passes vthrough the jacket, and su cient access is'giv-en forthe passa-ge of the .outside air into thejaeket to ecol'the parts sufficiently. In` Fig. 6 the regulator A tis arranged for air as the Ame ium used in 'the motor. Its cap 25 is provided with a-n inlet a2 which water may be introduced into 'cham'- .ber A', this waterpassing through an annular lip pending from the cover 25', to which a `fibrous lor other curtain 26 is attached, so aste dip intothe water, as shown. The en` tering air will consequently have to travthrough i erse this moist curtain 26, as indicated by the arrows, to reach the outlets'27, 27 from chamber A', one of vwhich' outlets is dotted in Fig. 6 and both are .shown 1n 14.. rom -,each outlet 27, the air passes a. tube 28 to a check-valve 29, the the left, Fi v8, feeding into the beownthe piston and one on working cylinder theother'above'the piston D, as follows: In a double-acting motor the-chamber above the Working-pistoni) is' notavailable for a pressure reinforcing chamber. Therefore an Figs. 13 and auxiliary air-co1`npressing cylinder 30 piston 31 are used. Assuming the minimum pressures above and below piston D to be 45 lbs., and the pressure in the space A to be that of the atmosphere or about 15 lbs. and the air at that pressure to be compressed above and below piston 31 to 45 lbs., then: In the position of piston D shown in Fig. 8, the air above piston 31, of 45 lbs. pressure, is in communication, through channel 32 and port t just uncovered by piston D, with the air below the piston, then about at its minimum pressure, as explained with reference to Figs. 1, 2 and 3. If that pressure is below 45 lbs., air will flow from above piston 31 to below piston D. Upon the said pistons 31 and D having then reached their lower positions, the air above piston `31, thus depleted, will have a pressure below 15 lbs., causing valve29I to open, and air to pass through it from the regulator-space A,- ' temperature. , that purpose curved V*steam motor, with a nary thermostatic trap being suitable. I um the and sue Y', d the port t being then covered by piston D. In the lower position of the pistons 31 and D, the latter will have uncovered port t2. If the pressure above piston D is then below 45 lbs., air will pass from below piston 31 through channel 51, and through port t2, to the cylinder-space above piston D; and so on. The purpose of the waterin regulator space A which moistens the air as named, is to give to the air greater capacity and rapidity for absorbing and rejecting heat and to increase its pressure at a given This etfect can be increased by more or less heating the water in space A, by turning the fire-gases through jacket I, as above described. Channel 33 connects the workingspacef above pistonA D,.with the right hand heating and cooling chamber B, B. A cock 34 serves to regulate the speed of the motor, or to stop the same, by contracting or closing channel 33. For the purpose of keeping the bearings ofthe shaft cool, they are in corporatod in the upper cooling casingB, the Hanges ofthe upper and lower casings, and the intervening packing M, being for downwardly as shown in Figs. 6a, 13 and 21, whereby the heating surface is a little reduced. Each heating and cooling chamber B, B its lowest pointwith a drainage cock X Fig. 6, or in place thereof and when useu as a steam-trap, any ordihe motor is represented as being heated by gas ame like Figsul and 2. It may be heated by coal, a suitable furnace being substituted for the purpose; or 1n any other 'i manner.. The bulk of the h left, land rises through opening Yv Fig. 6 ividing therein into osit'e directions end passingtoward the .jzg .ri-g t throughthe two side lues Y2,Y2 Fi 8,;into the en d line Y? Fig. 6, making their is provided at l of through jacket I; and gas flame or furnace fire is eat passes to the and j exit through the central outlet Y4 into are heat-pegs traversing the lues, land connecting the walls forming the fines, whereby the hea-t transmitted tothe outer-walls thereof and to the pegs, iscarried to the inner walls and transmitted to the motor as a steam-motor, the cap 39, Fig. 13 is substituted for cap 25 Fig. 6, a shown in Fig. 15, closing the opening a, as in Fig. 1. This is arranged so as to automatically control the pressure in chamber A, by causing that pressure to more or less close damper V Figs. 1, 6, and 15, as follows: A hat shaped rubber-packing 40 Fig. 13, closes the sleevellkeopening in the cap 39. The flange of the hat-packing 40 is confined between cap 39 and a flange formed upon vthe inverted U frame 42 as shown in Fig. 13. Or the ca 39 and the iiange upon U frame may merged into one piece, as shown in Fig. 12, wherein the rubber piece 40 packs the cap 39 also. The plunger 43 fits loosely into said hat-shaped packing 40, its upper end being guided in the upper end of shown. A beam 44 fulcrumed in the slot formed in by a pin 45 the short end of the beam Figs. 14 and 15, being pivoted upon a stud 46 formed upon, or attached tocap 39', and the end of the long arm of beam 44 is pivoted by a pending rod 46a Fi formed upon the stem o? valve .V, as shown in Figs. 14 and 15. The plunger-stem 43 is screw threaded above its slotted part, upon which threads a. nut 47 which may be screwed higher or lowe A spiral'spring 48, which surrounds the plunger-stem, abuts, above against the end of frame 42, and below upon nut 47, thereby bearing the'plunger downwardly with afforce increased or decreased by screwing nut 47 up or down. Thus the pressure in chamber A which acts against the rubber-cup' 40 and the plunger 43,-when greater than the force of the spring 48 which bears down upon the plunger, causes the free endof beam 44 to rise accordingly, opening valve V wider, and thus allowing more ofthe furnace gases to pass straight up the smoke-pipe, H, instead vice versa. In motors applied to varying power, the regulated by the ire-gases aps-repplunger 43, temperature of the escape resented in Fig. 6. There are various methods for causing a change in temperature to produce ymechanical motion. I prefer the method shown. A thermostatic spring' 76 in spiral form is fixed at one end in the flue fluid. When used cap 39 with its attachments 15 to a short arm' Figs. 12, 14, 15 and 18, is l lII=at"77 `and its other end is .fastened to the spindle v7-8., which is journaled so 'as to traverse thesmoke-pipe las shown, and has an ann 79 aliixed to it on the' outside,`romthe end of-whioh a link() connects to thehandle of the-gas-'cock 81,-so that whenithe spindle 7 8 isrevolved by thespiral '16,.th'e gas-cock will be turned thereby reducing `or increasing the. amount or' gas burned, as the case mayrequire. If a coal furnace is used, thennn 79"wourld be coupled to the damper which controls the draft 'of the fur' nace. Insteadof the thermostatic .spring lbeing coiled it may be designed as shown in Fig.- .18, where the upper end of the double leaf-spring istixeid and the lower end is free to movie-vertically, `and is attached by y-li-nk 80 tothe gas-cock handle, an increase in temperature will cause the spring 82ftohe. 'moved into' the shape shown in a dotted ling, thereby drawing` up its lower end, ltogether :with=link80., with a correspondmgmovement of the method used. gas cock. rthe movement mayfbe taken from the central curved part of the-spring r82 in the direction of the arrow, the lower -end at the spring rising vertically. And other methods based upon the same principle maybe applied-the circumstances governing the selection oi"-A the The piston-md 4e nig. e, which is ax'ediy i attached to the top of piston D, as shown, I sa i l:sa passes through stuiing-box 50, and carries airiston 31, which then passes' through stu tgl-box 52, and carries the pump-piston its piston l53 are removed and theremai'ning spaces B, piston-rod is .housed by cap 54 Fig. 7, 'which takes the place of the pump-barrel and of -the disk vembodying stuing-box 52. .Figslland 18 represent motors arranged principally with steam and other condenslable vapors. The water jacket 20, and the air compressing-'cylinder 30 Fig. 8', are omitted; and the steam formed in regulator.l lA is `caused to )ips ,"t'nnittingV tubes 28, channels l '32 and 51,.'7a`ndtportst and ,t2 Figs. 8,13 ' lchannel 57 leadingFas shown in Figs. 9 and 'and 14, .asffollowsz Betwcenthe cylinder `A anditseap 39gtlie're is intermediate/cap 55,'lFigs.-'11-,`=12, 1:5, wherein two-check valves 5'6- arel'lo'cate'djFigs, `11, 12 and 20 each of which connectsr with a channel -57 cast in the mus nf chamber Mannini-hand channel 57 leading directly into cooling chamber B on the right Fig. 15, 'andthe left Vhand 15 and dotted in igsyie and 2c, into' the. 'left chamber B. -In this case the pressure effectof the vcheck-val to the desired minimum pressure 'in the chambers B, B. Ass iming thepressure in chamber A to be s., and the minimum pressure in the in chamber i must be ual (harring'the right-hand chamber B to have fallen to .40` henno pump is used, the pump' and` s directly into the cooling' lbs. theother chamber B remaining at 4.5 chamber A .under it, allowing steam from the latter to pass through the valve and through the right-hand channel 57 Fig. 15 into the chamber B. The same act-ion takes lbs., the right-hand valve 56 Figs. 12 and 2'@ will be forced open by the pressure inplace with the left-hand valve 56 and its `channel 57, whenever the `ressure of the corresponding chamber B allsk below that of the regulating chamber A. Both Figs. 15..-and 18 repr ient motors arranged for pumping water. 1n. Fig. 15 the pump-barrel and its piston are removed, the piston-rod being housed by cap 54. The pump is supported by pillars U2, U2, so that the stuffing-boxes `and 52 are accessible. Both these smiling-boxes may be omitted 'when the pump is not in use,- by using cap 58Fi'g. 16, which forms the cover for cylinder E, and houses the nod 49, In Fig. 18 'two'stuifing boxes 50 and 52 Fig. 15 are merged into one, 'whereiny the acklng is set up by four set-screws 59, which "crowd the packing sidewise against each other, and lengthwise along the rod, as well as in the line of` their-advance, the `shell of the box being tapered, as shown in Fi s. '18.and 19, to facilitate the crowding of t e packing in the Adirect-ions named. The pumping mai chine, Fig. 18 is so arranged, that afterthe motor'is set into motion by a starting bar clasping shaft Q, or \by a temporary flywheel, the protrudingl Vend of shaft Q, is capped by cap G0, whereby all leakage is the same as a'. rcommon steam-engine is to its boilers; suchconnecting pipes in this motor being 'madeas sho-rt as practicable to avoid unnecessary dead-s aces, wherein the Huid remains inactive.' uch separate location of the cylinder/is particularly applicable in motors of large power, wherein four or more heaters and coolers supply one working piston. Such a motor is represented in Figs. 21 and 22, wherein the left-hand vessel B is connected to and feeds the lower end of a working-cylinder E^by channel 6l; and the right-hand vessel B 4is vconnected toand feeds the upper end ofcylinder E by 'channel 62 whereinl a speed regulating valve is located controlled by hand-wheel 6 3. The displacers inithe twovess'elsB, B receive motion through'r'od, which couples their cranks 65, with the engineico crank 66 upon the main shaft 67, this shaftl receiving motion by the two return connecting rods, 68, {38, 69 being the wrist pins, 70 the cross head, 71 the piston-rod, and 72, 72 the cross-head guides. The guides may be preferably duplicated, one pair being placed close to each of the wrist-pins. T3 is a pillow-block, 74, 74 are shaft-bearings, and 75, 75 are braces. These heating and cooling vessels B, B may be extended endwise, or several of them may be connected endwise; and they may be located'two or more on each side of the cylinder E, the coupling-rod 64 in that case connecting four r l or more cranks 65 to the main crank 66. As to the power practically attainable, an estimate based upon well established data, shows that two heating and cooling drums seven feet in diameter and 15 feet long, will produce about 1460 horse power-four such drums producing nearly 3000 H. P. V As the displacers, like a piston of a usual steam-engine, are alternately exposed to both the heating and cooling surfaces during every revolution, it is preferable to coat themA with a non-radiating and non-conducting surface such as enamel; or they may be coated with, or formed of papier mch or other material serving that purpose. It is more important that the material or coating of the displacers be non-radiators of heat, than non-conductors, particularly as thefcentrifugal force imparted to the elastic {iuid diminishes its pressure upon the displacer. A non-exhaust-motor of this nature presents great facilities for perfect lubrication, which is made more permanent and is'preserved from caking and incrustations by mixing with the working fluid a lubricating material which is neutral to the lfluid andunaifected. by heat such as fine graphite, soap-stone, or flour of sulfur, according tov the elastic motor-Huid used. The `ad vantages ofsuch a rotary displacer'as compared to a reciprocating displacer are: Greater simplicity of mechanism. Greater facilities for housing and protecting the operating parts. A greater number of revolutions in a giventime under equal conditions, which -is largely favored by the centrifugal ,force imparted tothe elastic iuid use d by the revolving displacers, such force causing the fluid to strike the surfaces with corresponding impact, which greatly adds to the rapidity with which heat is absorbed and surrendered. Furthermore the displacers perform the additional duty of acting as tlv-wheel. It is not a peremptory condition that the heating parts be below and the cooling parts above. But with a condensable working medium such as steam, it is preferable to arrange the relative location of the cold and hot parts as represented, so that the condense;water, when the motor is not in operation or `at any time, will be drained into the part impinged upon by the lire with its conse uent revaporation. The specific construction of such a nonexhaust motor defore its dimensions weight, and radiating A surfaces large. If in such a motor, no heat is `abstracted by water, its economical advantages over a common steam-engine, having outside radiation, would be the saving of all the latent heat of the steam usually escaping with the exhaust, except so far as it is utilized in heating the feed-water of the boiler. bestengine about of the total heat imparted by the boiler. On the other hand, if a minimum of size and weight is the main object, the means effective pressure should be raised by extracting heat from the working fluid externally as described to any practicable extent-such heat being of course lost, andthe motor less economical accordingly. The motor, if comparatively small, is reversed by mounting the annular section C3 Fig. 9, upon the central section C2 as a loose eccentric of an ordinary steam-engine is mounted upon a crank-shaft, as shown, the fly-wheel being turned in the new direction by hand or by a bar. Or the reversingmay be done by belts in an ordinary way. Heat conveying pegs Z3 Fig. 9, may also be incorporated in the cooling part, when air is the principal working medium used. They may be applied as shown in Fig. 9; or if the cooling part is covered by a jacket, such pegs would connect the two walls ofthe jacket as shown in Fig. 6. The cock 34 located in the channel 33 leading from the right-hand Huid-chamber to the upper end of the cylinder E is automatically controlled by a usual speed governor located in the fly-wheel in the usual way; or as follows: Figs. 14 and 15 a weight '76 is loosely tted upon radial rod 77', and is pressed down toward the hub ofthe fly-wheel by spring 78', the tension of which is such that it will yield with too great a. speed. The radial motion of weight 76 is transmitted through double elbow lever 7 9 to the grooved sleeve 80 'which turns in unison with the fly-wheel and is adapted to slide freely upon t-he hub of thesame. Lever 79 is ivoted upon a bar 81 journaled in ears ormed upon the two adjacent wheel spokes; The short arms ofy elbow lever 79 are pivoted to the weight 76', with The net amount so lost is in thel in their cosines when moving up or down. The long arms en d in `buttons entered in the i left hand groove of the sleeve 80, whereby1 the latter is made to move to the left, closing tlie'cock when the' weight moves outwardly, and vice versa. rlwo links 81 are suspended by two straps 82 from a stud 33. The right hand ends of the links 81 arc pivoted to the short forked ends of. lever 84, and their left hand ends enter the right hand groove of sleeve 80, whereby they transmit the motion of the sleeve to the lever 84 which is pivoted in ears 85 Fig. 14.- on boX K. The long end of lever 84. transmits its motion by link S6 to the crank arm 87 attached to the spindle of cock 34. ' The governor described, or any other suitable construction of speed governor, may be arranged to govern the motor either by throttling the passage of fluid through a channel (as 33) between the working cylinder and heating and cooling chamber; or by opening more or less a by-pass valve in a channel communicating from one side of'. the piston to the other,so as a to reduce the differential or effective pressure tending to move the pistons, as set forthin my afore# said Patent Number 623,137. Y Having thus .fully described my invention, what I claim is- L'In a non-exhaust motor, a displacer adapted to rotate in the fluid-heating and cooling chamber of corresponding shape, whereby the displacer acts as a fly-wheel and gives centrifugal forceto the fluid, causing it to strike the heating and cooling surfaces with impact, thereby increasinglth efliciencyand speed of the motor. 2. In a non-exhaust motor, a displacer having a. depression or pocket in its periphery, and adapt-ed to rotate in the 'corre'- spending fluid-chamber, substantially as described. y 3. In a Anon-exhaust motor,'va displacer adapted to rotate, a fluid-chamber formed of a relatively hot part, and of a relatively cold part, and an intervening construction obstructing the passage of heat from the hot to the cold part. 4. In a non-exhaust motor, a rotary displacer, a'heating andcooling fluid chamber of corresponding shape so that the rotary displacer can utilize centrifugal force to throw the vapor or air contained therein against the walls of the chamber for heating and throng said fluid chamber. an opening in the cylinder for doing wor a working cylinder opening di rectly into said fluid chamber, without intervening fluid channel, and a power piston in said cylinder adapted to work close to 5'. In a non-exhaust motor, la rotary dischamber wherein the displacer is adapted to rotate, a working cylinder opening at one end directly into such chamber, a. powerpiston adapted to :reciprocate in such cylinder, a crank-pin upon said 'd1splacer, and 'a rod connecting such crank-pin to the power-piston. 6. In a non-'exhaust motor,a rotary displacer consisting of two lparts divided transversely to its axis' of rotation, acrank-pin firmly connecting the two partsa working cylinder opening directly into the chamber wherein the displacer is arranged to rotate, the power-piston, and a connecting rod joining said piston to sald'crank-pm. 7. In a non-exhaust motor, a divided ro-v tary displacer, a crank-pin connecting the two parts of the displacer, a working plston, and a connecting rod `joining' the piston to said crank-pin, such ro'd being abnormally wide in the plane of rotation, and thm 1n its axial direction, whereby a minimum of dead space is obtained between the two sections of the displacer. 8. In a non-exhaust motor, a rotary displacer formed of two sectlons connected by -a crank-pin, and a connecting rod coupledl thereto formed with a 'sleeve embracing said crank-pin.- 9. In a non-exhaust motor, a rotary dis- :placer, a fluid-chamber of corresponding shape, wherein the said displacer is adapted to rotate whereby the displacer may throw -fluids by centrifugal f'orce against the walls `of the fluid chamber, and al working cylinder opening directly into such chamber. the opposite end of such cylinder being closed against the atmosphere. . 10. In a non-exhaust motor, a rotary displacer formed of concentric sections, the central .section carrying the crank-pin2 and the annular section being formed with a cut away portion for containing the active Huid, whereby'the lead of`lsuch recess may be regulated. 11. In a non-exhaust motor, arotary displacer formed, of concentric sections, each section being rotatively balanced independently, 'so that an adjustment for lead will 'not disturb the rotative displacer. 12. In a non-exhaust motor, a power-plston and its cylinder opening directly in tol the heating and` cooling chamber, a displacer adapted to rotate in said chamber, a lcrank-pin upon said displacer, a connecting rod joining the said crank-pin to the powerchamber, of a heat jac et on said chamber equilibrium of the and heat pegsstuddmg said jacket adapted to carry heat to the inside of the fluid chamber wall, whereby the rapid extraction of heat therefrom by the centrifugalimpact, given to the fluid 'by the displacer, is pro- 5 vided for. i' 14. In a non-exhaust motor, the combination with a rotary displacer `and its fluid chamber, of a cooling jacket to such cham-4 ber, and heat-pegs studding said jacket, 19 adapted to convey heat from the inner wall of said' chamber outwardly, whereby the pressure combined with ymeans, for automatically feeding such working fluid into ahthe motoras re uired. 17. The combination with a non-exhaust` motor= com rising a workingcliamb'er, a displacer, an a .power piston, ofmeans for regulating f the fmean pressure. therein,l con- 3'5 sisting off-'asource of ii-uid at approximately uniform pressure,an'd a'passage communieating therefrom to said working chamber with an intervening valve adapted when the `miimum pressure in said working 40 chamber falls below 'said luni ormf pressure to permit-.an inflow of fluidi' f 18. In a non-exhaust Inotb'having va ro-` tary displacer, a pressure 'lating reservoir contamlng working Hui vunder an ap- ,415', proximate predetermined pressure, to ether with automatic means adapted to fee such working fluid into the motor asvrequired, substantially as described. j i 19. In 'a non-exhaust motor, two inde- 5 0 pendent heating' and cooling chambers, a '-displacerin each chamber, a double-acting power-piston with its cylinder, -`and a pressure regulating' reservoiraving means adapted to 'reinforce the respective pressures on both ends'of thevpower-pi'ston auto- 7 matically. 20. In a non-exhaust. motor having a rotary displacer, a pressure regulating reservoir, a flue arranged to carry heat to1 such reservoir, together with 'mechanism adapt- I ed to automatically feed thecontents of such reservoir into themotor, substantially as described. I 21. In a non-exhaust motor, a reservoir of working fluid, means for heating the same, vcool section of said chamber. ber bein I 'of a cooling section, with the displacer shaft and mechanism acted :upon by such fluid, whereby the mean pressure in the motor `is automatically. regulated and maintained. 22. In a non-exhaust'motor, a reservoir for supplyin lost working fluid, a furnace Vfor heating t e motor, and a passage for dizreservoir. Acapacity of such wall for absorbing heat 23. In a non-exhaust motor, a reservoir lfor supplying 'lost working fluid, a furnace for heating the motor and a passage for directing fire-gases to heat the reservoir, con1- 80 bined with a yielding diaphragm in communication with said reservoir, a lever vibrated by the movements of the diaphragm, and a damper in connection with said passage connected to the lever and adapted 8f when moved thereby to deflect more or less fire-gases into contact with the reservoir. 24. In a non-exhaust motor, the lcombination with the heating and cooling chamber, of an automatic mechanism adapted to free said chamber of surplus liquid substantially as described. 25. In a non-exhaust motor, a displacer ixedly mounted upon a shaft, a heating and cooling chamber wherein the displacer is :adapted to rotate, a heat obstructing construction intervening between the cool section and the hot section of said chamber, and bearings for said displacer shaft in the y26; In a non-exhaust motor, the combination wit-h the displacer and fiuid chamber wherein it is adapted to rotate, such chamformed of a heating section and bearings in the cooling section, of a curved joint between the two sections, whereby the heating surfaces on the sides may extend higher up than on the shaft bearing ends, thereby increasing the heating surface of vthe motor. 27 .In a non-exhaust motor, arpressure regulating-reservoir provided with an lopening for filling the same, in combination with a cap for covering said opening, together with a spring or weight loading said cap, so as to serve'as safety valve. y 28.' In a non-exhaust motor, the combination with a fluidvheating and cooling chamber, a displacer therein, a working cylinder, 12o ` a pistontherein, a passage communicating between sald chamber and the active part of said cylinder, and means foi` controlling the engine by choking the flow of working fluid contained in said chamber through said passa e. ` 29. In a strictly non-exhaust motor in its cycle of operation, the combination of a Huid heating and cooling chamber, a displacer therein, a working cylinder, a piston 130 35 placer, of a fluid-channel from said auxilinto the outer end of said therein, a passage communicating between said chamber and the active part of said cylinder, and a governing valve controlling the engine by choking the flow thro-ugh said passage, combined with a centrifugal governor, and la mechanical connection lbetween said governor and the governing valve. 30. In a noneXhaust motor, the combination with a fluid heating and cooling chamber, a displacer therein, a working cylinder, a piston therein, a passage communieating between said chamber and an active part of said cylinder, and a governing valve controlling the flow of fluid through said passage, con'ibined with a flywheel governor having weights moving each in the plane of rotation, a sleeve movable parallel to the flywheel axis, interposed means for tran-s-v mit-ting motion between the weights and sleeve, and a mechanical connection between said sleeve and the governing valve. f 31. In a strictly non-exhaust motor, a ' governing valve controlling the flow of working fluid through a passage leading from its stationary heating and cooling. chamber to the working' piston,ycombined with a governor adapted to control said valve and thereby the speed of the motor. 32. -In a non-exhaust motor, the combination with a working cylinder opening directly into the fluid heating and cooling chamber and its power piston coupled to the displacer arranged to rotate in said fluid-chamber together with an auxiliary fluid chamber and a corresponding disiary fluid-chamber working cylinder, said channel being provided with a valve or cock whereby the current through such channel can be tlirottled and controlled and the speed of the motor regulated. In a non-exhaust motor, a rotary displacer with a corresponding heating and cooling chamber, a working cylinder with its power piston, a channel connecting said chamber to one end of saidv cylinder, and a valve or cock' in said channel adapted to throttle the current of fluid through the same, together'with a speed governor coupled to -said valve. 34. In a iion-exhaiist-motor, a heating and cooling chamber, a d isplacer acting as a fly-wheel adapted to rotate in saidchamber, a crankpin'upon said displacer, ends fiXedly attached in said displacer and bearings for the same, a working cylinder opening directly into such chamber, a power-piston in said cylinder, a connecting rod joining the piston to the said crank-pin, apiston vrod mounted upon said 'piston and at the otherend coupled to a punip-piston, andcaps upon thexends of said shaft Hbearings, whereby the motor, after it is started, has no outside moving partsv anti is shaftprotected against leakage, dust and inter` ference. 35. In anon-exhaust motor, a rotary dis placer coated with enamel or other material obstructing the conduction and radiation of heat to and from the same. 36. A non-exhaust motor 'wherein a confined fluid is alternately heatedand cooled7 the' heat being transmitted through an intervening shell or vessel, and its resulting eX- pansion and contraction are `utilized to drive a piston, geneous mixture vof considerable fluid (as steam) and a non-condensable 4fluid (as air), .the relative quantity of steam exceeding the saturation capacity of the air, whereby the the working fluid being a homostability of the pressure is increased and A too free a collapse is prevented. 37. A non-exhaust motor wherein a confined fluid is alternately heated and cooled, and its resulting expansion and contraction are utilized to drive a piston, the working fluid being a homogeneous mixture of condensable fluid (as steam) and a noncondensable fluid (as air) the mixtures being accomplished by the mechanical means substantially as shown and described.' 38. In a non-exhaust motor, having a fluid Y heating and cooling chamber, a lubricating reservoir having an opening from its upper part into the fluid \heatin and cooling chamber, and an opening rom.its lower part into a'chamber encircling the shaft in its bearing together with coiled corrugated wire or porousmaterial lodged in said chamber, around the shaft," and adapted to keep the adjacent bearing sleeves separated and to give to the lubricating fluid access to the shaft; whereby said fluid forms` a stuffing-box sealed thereby against escape of the working fluid. 39. In a `non-exhaust motor, having a fluid and cooling chamber, a lubricating reservoir having an opening from its lower part into a chamber encircling the shaft in its bearing, together with perforated or porous bushing adapted to keep the adjacent bearing pieces apartand to give to the lubricating fluid access to the shaft, in combination with packing at the end of the bearing, preventing a lubricating fluid from escaping endwise, and formingA a-stufiingbox sealed heieby against the escape of the working- 40. In a non-enhaust motor, the combination, with a cylindrical heating and cooling chamber of a-displacer adapted for continuous revolution therein formed with a working fluid cavity upon its periphery, and with working fluid cavities upon its ends communicating with said y,cavity sul stantially 'as described. v 41. In a non-exhaust motor, a rotary displacer aheating and cooling cha-mber of corresponding shape,'a shaft 'attached to said displacer, bearings for the same in the shell of said chamber, together with a sleeve of heat obstructing material surrounding such placed up-on the inner section, with stops on said section to limit such displacement to the angular difference between the lead regulatedy for such recess in running forward and that required in the running backward. 4.4. In a non-exhaust motor,a heating and cooling chamber, a displacer adapted to shift the working fluid, a power-piston operated by the changeof pressure in said chamber in 4 combination with a working fluid admixed withi lubricating material, whereby t-he motors eflieiency and. durability is increased. 45. In a non-exhaust mot-or, a heating and cooling chamber, a displacer adapted to shift the working fluid therein, and a power -piston with its cylinder opening directly into said chamber, with a connecting rod from the piston to the displacer adapted to rotate the same, in combination with a lubricating material admixed with the working fluid; whereby inside connection of the working parts ismade practicable. 4G. In a non-exhaust motor, aI rotary displacer, a heating and cooling chamber wherein the displacer is adapted to rotate, a working cylinder opening directly into such chamber, a power piston in such cylinder, a crank-pin upon said displacer, a wrist-pin incorporated 1n said piston, and a connecting-rod joining said crank-pin to said wrist-- pm. 47. In a non-exhaust motor, a rotary displacer, aI corresponding heating and cooling chamber, a working cylinder opening directly into such chamber, and its piston coupled to said displacer, in combination with a wrist-pin incorporated in said piston, consisting of a main or core piece to which the connecting-rod is xedly attached, and a sleeve fitted upon the reduced end oi' the core piece, and a means for causing such sleeve to move in unison with said corepiece. 48. In a non-exhaust motor, a rotary displacer, and a heating and cooling chamber wherein the displacer is adapted to rotate, the displacer constructed with a recess on one side to contain working fluid, and formed of greater weight' on the recessed side to rotatively balance it. 49. In a machine of the class specified means for heating an expansive fluid, rotary means for shifting said fluid, and means for allowing said fluid to expand and do work and then return said Huid to its original volume to said rotating means; so thatl said fiuid, is first heated, then expanded, and cooled, then compressed while cool and returned to the heater. l 50. In a machine of the class specified, .a closed vessel containing an expansive Huid, means for heating said fluid, a rotary displacer in said vessel, a piston in the vessel having fluid passages in communication with said displacer and means in said displacer for shifting the fluid betweenl the heater and piston whereby the same fluid 1s used repeatedly and at each cycle of the machine. ROBERT CREUZBAUR. Witnesses: JOHN B. SUYDAM, AUGfD. KELSEY.