US716143A - Motor. - Google Patents

Description

No. 716,143. Patented new. la, |902.

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MDTUR.

(Application led Mar. 5, 1901.)

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Nn. 7|'6,|43. Patented Dec. ls, |902.

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MOTOR.

(Application filed. Mar. 5, 1901.) (No Model.) 4 Sheets-Shee 2.

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No. 7|s,|43. Planned nec. ls, |902.

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Y UNITED 7 STATES'L-ATENT OFFICE.

BAs1L..v."sZABo, oF'cH1oAGo,y1nL1No1s, AssIeNoR oF Two-THIRDS Tov FERDINAND SIEGEL AND JOSEPH ALEXANDER, oF CHICAGO.

ILLINOIS.

MOTOR.

SPECIFICATION forming partei Lettere letentNe. 716,143, det-ed December 16, 1902.

f' Application iiled Maroh 5, i901. Serial No. 49,833. (No model.)

T all whom tm/try concern:

Be it known that 1, BAsIL V. SZAB, of Chir nois, have invented certain new and usefulv Improvementsin Motors; and I dohereby de'- clare that the .'following is a full, clear, and exact description thereof,reference being had to the accompanying drawings, and to the letters of reference marked thereon, which form 1o a part of this specification. i

This invention relates to improvements in rotary engines or motors; and it consists in the matters hereinafter described, and pointed ont in the appended claims. y

My inventionis shown in connection with two differentgeneral forms of rotary engines-- one in which the exterior casing or inclosnre of the engine is rotative and the interior part thereof,through which steam is supplied to the zo interiorrof the casing, is stationary, and another construction, the reverse of that referred to,wherein the said exterior part or casing is stationary and' the interior part is adapted to rotate. z5 My invention 'will be more readily understood by reference to the accompanying drawe ings, wherein- Figure 1 is a view in side elevation of a motor embodying my invention of that kind in 3o which the exterior casing ofthe motor turns or rotates. Fig; 2 is a central `vertical section thereof, taken on the plane of the shaft. Fig. 3 is a vertical section taken on the line 3 3 of Fig. 2. Fig. 4 is adetail section taken 35 on lineeL 4 of'Figi2. Fig; 5 isa plan section taken on line 5 5 ofFig. 3. Figs. 6 and 7are side or face views of the radially-movable pis- Mton of the engine shownin Figs. Zand 3. Fig.

8 is a view showing, in side elevation, the

4o two separable partsof such piston.

a sectional View taken ou line 9 9 of Fig.` 8. Fig. 10 isa side View of the shoe belonging to the piston shown in Fig. 8. plan view of the same.

45 tional viewltaken on line 12 12 of Fig. 1l.

Fig. 9 is Fig. 11is` ai Fig. 12 is a cross-sec- Fig. 13 is a cross-sectional view taken on lineV 13 13 of Fig. 11. Fig. 14 is a viewin side elevation of still another form of piston. Fig.

l 15 is a sectional view taken on line 15 15 of 5o Fig. 14. Fig. 16 is asectional View taken on line 16 of Fig. 14. Fig. 17 is a detail sectional view showing one of the lateral extensions ofthe valve-casings to receive the Asliding piston. Fig. 18 is a crossesection of the same, taken on line 18 18 of Fig. 17. Fig. 19 55 is a view, with parts in section, of two motors acting on a common rotative shaft, said `motors having stationary casings and being i connected so as to operate as a compound engine." Fig.`20 is a view showing one of the 6o motors of Fig. 19 in side elevation and the parts in section, taken on line 2O 2O of said Fig. 19. Fig. 21 is a sectional view taken on line 21 21 of Fig. 19. Fig. 22 is a detail section taken on line 22 22 of Fig. 19. 65 As shown in said drawings, Figs. 1 to 7, A indicates the exterior casing of the engine, which is rotative and mounted upon stationary spindles B, which may be sustained in a i horizontal position by any suitably-arranged `7o support or supports, but which, as herein shown,is mounted at its ends on standards C C, attached to a floor or suitable base or support. The casing A is shown as having attached thereto, concentric therewith, a belt-pulley D, through which motion may be transmitted from the motor by a suitable belt. Said casing A is shown as consisting of a hollow cylinder A', with which the belt-pulley D is herein shown as cast integral, and two `fiat 8o heads A2 A3, which are provided with concentric cylindric fiangesaa, which extend outwardly from the heads and form bearingboxes which engage the spindle B near the ends ofthe same. The engine shown is provided with roller-bearings between the annular flanges ct ct' and the parts of the spindle engaged by the same. Said roller-bearings consist of inner and outer cylindric sleeves a2 a3, rollers a4 a4, and rings a5 a, located at 9o `the ends of the rollers for holding the sarne from shifting endwise. The annular iianges act are also shown as provided at their outer ends with attached rings a ai, which project inwardly over the outer ends of the antifriction-rollers and into contact, or nearly so,with the adjacent bearing-surface of the spindle B.

`The spindle B is provided in its part between the cylinder-heads A2 A3 with an eccentric cylinder or drum E, which is rigidly attached to 410o and preferably made integralwith the end portions of the spindle at either side thereof.

age of steam at these points.

Said eccentric cylinder E is made of such size and so located that its part of greatest eccentricity, or portion of its surface at the greatest distance from the central axis ot' the spindle of which it forms a part, comes in contact with or bears against the inner cylindric surface of the casing A. At its ends the said eccentric cylinder is provided with two outwardly extending rigidly attached disks or iianges E E', which are concentric with respect to the spindle B and tit at their margins against the inner cylindric surface of the exterior casing A, the two disks or lianges thus formed constituting, in effect, the side Walls of the interior space or chamber of the motor. To aiord a tight joint between the margins ot' the said disks E E' and the surrounding casing, said casing is shown as provided with two packing-rings F F, which are clamped or held in place by being inserted between the ends of the cylinder A and the marginal parts of the cylinder-heads A2 AS. In the particular construction illustrated the ends of the cylinder A are grooved or rabbeted to receive the outer margins of the packing-rings, which latter project inwardlyl from the innersurface of said cylinder, so as to overlap the margins of the disks E E and bear against the outer faces thereof. This construction leaves a slight space between the said disks E and the adjacent inner faces of the heads A2 A8.

The casing A is provided with two oppositely-arranged radially-movable i'lat pistons G G of rectangular form, located in a plane passing through the axis of rotation of the casing and of proper width to fit closely betweenl the disks E E', which form the side Walls of the interior space or chamber of the casing. Said pistons slide at their outer ends in guide-recesses formed in radial extensions on the casing A, said extensions consisting, as herein shown, of integral projecting parts A4, Fig. 3, on the cylinder A, and hollow U- shaped castings A5, Figs. 17 and 18, attached to said extensions A4 A4 and provided with 'lat side covers or heads A6 A, which form the end walls of said guide-recesses for the sliding pistons. Packing-strips a are shown as located in grooves formed in the inner ends of the castings A5, so as to bear against the side faces of the piston and prevent leak- The said sliding pistons G bear constantly at their inner ends against the exteriorly-cylindric surface of the cylinder E and are held in contact with said cylinder by means of suitably-applied springs, herein shown as having the form of coiled springs H, which are located in said guide-recesses and which bear against the outer ends of said pistons. Said springs are shown as placed around guide-pins H', which are secured at their outer ends in the castings A5 and slide at their inner ends ain guide-passages g, formed in the said pistons G. In order to insure the maintenance of a steam-tight joint between the sliding pistons G and the eccentric cylinder E, said sliding pistons are provided with shoes I, which have oscillatory connection with the inner edges of the pistons in such manner that said shoes may turn or swing slightly to maintain the proper angular relation between the same and the eccentric as the pistons move or turn around the eccentric with the shoes in contact therewith. The cylinder A is shown as provided with recesses a9 at the inner ends of the guide-openings for the pistons to receive the shoes I when the pistons are at their extreme outward position.

The pivotal connection between the shoe I and the body of the sliding pistons G is shown as formed by means of a longitudinal cylindric head g', Fig. 6, on the inner edge of the piston, engaged by the correspondinglyshaped longitudinally-shaped recesses rin the said shoe I.

In order to insure a tight joint between the eccentric cylinder E and the inner surface of the surrounding cylinder A and to compensate for wear on the inner surface of the said cylinder, the said eccentric cylinder is shown as provided with a movable packing-strip J, which slides radially in a suitable longitudinal recess in the cylinder and which is forced outwardly against the inner surface of the cylinder A by means of suitablyapplied springs j.

The cylinder E is provided with inlet and outlet ports e e', which open through the surface of the cylinder at either side of the line of contactbetween the same and the surrounding cylinder A. kSaid ports e e communicate with longitudinal passages e2 c3, which extend through the body of the cylinder E and the spindle B to points outside of the bearingfiange a on the rotating casing, where said passages turn outwardly and are connected with radial openings e4 e5 in the spindle.

K is a casing secured rigidly to the spindle B, around the part thereof in which the openings e4 e5 are located. Said casing is provided with a cylindric seat for a valve L and with lateral passages 7c 7c, leading from ports in the valve-seat of the valve L to the openings e4 e5 at the sides of the spindle B. Said casing K is also provided with a centrally-arranged exhaust-passage 7a2, leading from a port in the seat of said Valve L and connected with an exhaust-pipe M. The casing K is also provided with an inlet-passage 7c3, with which is connected a steam-supply pipe K. The valve L is so arranged that by rotation on its axis either of the passages K K2 may be brought into connection with either the inlet-port 7c3 or the exhaust-passage 7a2, so that the valve constitutes a reversing means by which the motor may be driven in either direction. The valve L is shown as provided with a hand-leverL',by which it may be turned for reversing the engine.

In the operation of a motor constructed as above described the steam, compressed air, or gas enters the casing through one of the IOO ports@ or 'cel and is exhausted through the other of said ports. Assuming the ports to bein the position shown in Fig. `3, the pressure produced in the casing at one side of the plane of the two pistons G G, acting on the piston which is in an advanced position, (the upper piston in the`draw`ing,) serves to turn I or rotate the casing, the exhaust passing from the space at one side of the plane of the sliding piston at the time that the space at the other side of such plane is subjected to pressure. When by the turning of the casing j each of the pistons passes the inletport,ipres sure will begin to act upon the same, so that said pistons come into action alternately and the exhaust takes place from the spaces at the opposite sides of the plane of the piston successively, it being obvious that the spaces or chambers at opposite sides of said plane will become alternately pressure and exhaust spaces i as the casing continues `to revolve.

To maintain always astearn-tight joint be-V tween the side edges of the pistons G and the sides ofthe guide-passages and the disks E,

aconstruction is provided which is shown in` detail in Figs. 8 to 13, the same being as follows: The said piston G is divided longitudinally into two sidesor halves G' G2, which are connected at their meeting edges by means of a slidingV and steam -tight connection, consisting of a tongue g on one part and a groove g2in the other part to receive said tongue.

` Coiled springs g2 are inserted in recesses in of the piston. i the piston G is also made longitudinally ex the part G2, so as to act upon the inner end of the tongue g to throw or separate the two parts of the piston, and thus hold their outer edges pressed against the inner faces of the disks E' E.

pansible, so that its ends may be held in con tact with the disks E E in the same manner as the body of the piston. The construction for this purpose is shown in Figs. 10, 11, 12, and 13. `As clearly shown in these Iigures,

said shoe I is made in two parts I 12.` The part I' is provided between the longitudinal groove and its contact-face with a projection t', which entersa corresponding slot or recess t", formed in the part 12. The tongue t' is preferably made tapered transversely, with its wider end adjacent to the recessof the shoe and its narrower edge adjacent to the bearing-face of the shoe, as clearly shown -in Figs l2 and 13. Spiral springs't'3 are placed in recesses in the part I2 and bear against the part 1', said springstending to throw the said t parts away from eachother, and thus hold their endsin` contact with the disksE E'. i

within thecasing.

In Figs. 14, 15, and 16 I have shown a semewhat-dierent construction in..A the `piston G. In this case the piston consists of` one main piece or plate and two lateral bars G2 G2., having tongue-and-grooved connection with the body of the plate in the same manner as before described in. connection with the two-part construction illustrated in Figs. 8 and 9. In this instance, however, each of t-he bars G3 is provided at either side of the tongue g7 thereon with two lugs g8 g8, arranged parallel with the tongue and separated therefrom, saidtongues engaging shallow recesses Q9 g9 in the side faces of the body of the piston, said lugs holding the bars G3 from endwise movement with respect to the body of the piston. i f

In Figs. 19, 20, 21 and 22 I have shown a construction in which the exterior casing of the motor is stationary and in which is provided a eut-off valve, whereby the steam may be used expansively in a single engine, and also a construction whereby `two motors, made as hereinbefore described, may be connected to form a compound engine. In this instance N N' indicate two motors, the casings of which are stationary, but are in their main features like those hereinbefore described in Figs. 1 to 5 and which are connected with and operate a single shaft N2. The two motors N and N being alike, one of them will now be described, the same being shown in section in Figs. 21 and 22. Said motor embraces a casing O anda spindle?,

which is attached to and turns with the shaft),

N2, which connects the spindle of the two motors with each other. The spindle P turns in the casing and is provided with an eccentric cylinder Q, which cylinder corresponds in all respects with the cylinder E, herein- `before described. Said casing O embraces aeylinder O and heads O2 O2. The head O2 is in this instance provided with two annularpassages o 0, arranged side by side and located between the cylinder Q and the annular bearing-flange O2 on said head, whichaffords bearing for the outer end ofthe spindle P. The cylinder Q is provided with two ports, which are connected by longitudinal passages q2 q2 with inlet andoutlet ports g4 Q5, which latter ports are arranged out of circumferential line with each other and in such positions that one coincides with the annular passages o and the other with the annular passages o; R R are steam supply and exhaust passages, which are attached to the head O2 and communicate one with the annular passage 0 and the other with the annular passage 0'. The construction described, embracing the head O2, provided with the passages o o', obviously affords a means `of providing `separate supply andA exhaust con'- `nections with the ports of the eccentric cylinder, notwithstanding the fact that the said cylinderand` itsconnected spindle revolve A motor thus constructed obviously operates in the-same manner as IOO IIO

that hereinbefore described, the fact that the casing is non-rotative and that the spindle and eccentric cylinder rotate making no difference in the action of the operative parts.

Now referring to the cut-off valve, whereby steam is admitted intermittingly instead of continuously to the engine-casing, so that it may operate expansively, the motor N, Figs. I9 and 20, is provided with a reversingvalve embracing a valve-casing R2 and a rotative valve-closure r, said reversing-valve operating substantially in the same manner as the reversing-valve shown in Fig. 4t. The valve-casing R2 is provided with an inletpassage r and an outletpassage r2.- Between the steam-supply pipe S and the inletpassage r of the reversing-valve is located a cut-off valve (indicated as a whole by T) and embracinga cylindric valve-casing T', herein shown as made integral with the valve-casing R2 of the reversing-valve and containing a cylindric valve-seat which is in open communication with the said inlet-passage r'. In said valve-seat is located a hollow pistonvalve U, which slides endwise therein and is operated through the medium of an eccentric U and eccentric-straps U2 from the shaft N2 of the engine. The hollow piston-valve U is open at its inner end and closed at its outer end and provided with a lateral port u, which is located at a distance from the open end of the piston-valve somewhat greater than the diameter of the port s, through which the steam is admitted to the valve casing T. These parts are so arranged that when the eccentric is at onelimit of its stroke the valve will be moved outwardly in the easing so as to bring its inner end outside of the valveports, thereby permitting steam to pass inwardly to the cylinder and casing, and when the eccentric-is at the outer limit of its stroke the port u will come opposite the port s, and thereby admit steam through the hollow valve to the casing. The movement of the said valve will be so adj usted with respect to the rotation of the eccentric cylinder E that steam will be admitted twice at each revolution of the eccentric and just after the admissionport e e passes one of the two pistons G G, the effect being that steam will be admitted at the desired length of time after the admission-port has passed the piston, but will be cut off before the eccentric has completed a half-rotation, thereby permitting the steam to act expansively during the latter part of each half-rotation, during which the steam is acting upon one of the two pistons.

Now referring to the construction whereby the two motors N N are adapted to act as a compound engine, features are shown in said Figs. 19, 20, and 2l, as follows: The motor N is provided with a reversing-valve V,made

like the valve R2 and embracing a casing V and a rotating valve-closure QJ. Supply and exhaust pipes R R lead from the valve-casing V to the engine-casing in the same manner as before described in connection with the motor N. The outlet-port r2 of the casing R2 belonging to the motor Nis connected with the inlet-passage v2 of the corresponding casing belonging to the motor N by means of a pipe W. To provide for simultaneous actuation'of the two reversing-valves R and V, the valve-closures r and U are connected `to a common actuating-shaft X, which is provided with a hand-lever X', through which it may be turned or rotated.

Manifestly in the operation of the two motors N N the exhaust from the first motor N passes to the supply-port of the second motor N and is used expansively in the second motor in the same manner as in compound steam engines of the reciprocating piston type.

I claim as my invention- 1. In a rotary motor, an axle or shaft having two concentrically-disposed flanges thereon, a drum eccentrically fixed between said flanges, a cylinder inclosing the space around the drum between the flanges and having bearing on the shaft or axle outside of the flanges, and movable plates held against the surface of the drum and fitting closely between said flanges.

2. In a rotary motor, an axle or shaft having two concentrically-disposed flanges thereon, a drum eccentrically xed between said flanges, a cylinder inclosing the space around the drum between the flanges and having bearing on the shaft or axle outside of the flanges, and movable plates held against the surface of the drum and fitting closely between said flanges, said shaft and drum being provided with inlet and outlet passages and communicating with the chambers in the casing formed between said plates.

3. In a rotary motor, an axle or shaft having two concentrically-disposed flanges thereon, a drum eccentrically fixed between said flanges, a cylinder inclosingthe space around the drum between the flanges and having bearing on the shaft or axle outside of the flanges, and movable plates held against the surface of the drum and fitting closely between said flanges, said shaft and drum being provided with inlet and outlet passages and communicating with the chambers in the casing formed between said plates, and a steam-chest on said shaft outside said casing and a valve in said chest for controlling the passage of the motive agent through said inlet and outlet passages.

et. In a rotary engine, an eccentrically-disposed fixed drum, concentricallydisposed flanges at opposite ends of said drum, a cylinder or casing inclosing the space around the drum and between the flanges and movable pistons held against the surface of the drum by yielding pressure and closely fitting between the flanges.

5. In a rotary engine, a fixed axle or shaft having two concentrically-disposed flanges thereon, a drum eccentrically fixed between said flanges, a cylinder or casing inclosing IOC) IIO

i having two concentrically-disposed flanges thereon; an eccentrically-disposed drum fixed between said flanges; a cylinder or casingl comprising an annular part closing the space around the drum between the flanges and side plates secured to the annular part and engaging outside of the flanges on the axle; and movable pistonsheld against the surface of the drum by yielding pressure and fitting closely between the flanges,

7. In a rotary engine, a fixed axle or shaft having two concentrically-disposed flanges thereon an eccentrically-disposed drum,fixed between said flanges; a cylinder or casing comprising an annular part closing the space around the drum between the flanges and side plates secured to the annular part and engaging outside of the flanges on the axle; antifriction-bearings interposed between the inner edges of the side plates and the axle or shaft; and movable pistons held against the surface of the'drum by yielding pressure and fitting closely between the flanges.

` 8. In a rotary engine, a fixed axle or shaft having two concentrically-disposed flanges thereon; an eccentrically-disposed drum between said flanges; a cylinder or casing comprising an annular part closing the space around the drum between the flanges and having slots or openings therethrough; hollar part over said slots, and side plates se cured to the annular part and engaging outside of the flanges on the axle; and pistons radially movable in the slots and hollow caps.

9. In a rotary engine, an eccentrically-dsposed drum; a cylinder inclosing achalnber about the drum and having a hollow extension thereon, a piston movable in said extension and consisting ot' two or more parts, means for pressing the parts apart in opposite directions against the end wall of the chamber, and coiled springs seated in openings in the outer end of the parts of the piston for forcing the inner edge thereof against the drum with yielding pressure.

l0. A rotary motor comprising an exterior casing having a cylindric interior surface, an eccentric cylinder therein, said cylinder and casing having rotative movement one with respect to the other, radially-sliding plates mounted in the casing and engaging the surface of the eccentric cylinder, and supply and exhaust passages leading through said eccentric cylinder and opening into the interior of the casing, said plates having oscillatory shoes, and both the plates and shoes being laterally expansible.

In testimony that I claim the foregoing as my invention I affix my signature, in presence of two witnesses, this lst day of March, A. D.

BASIL V. SZAB.

Witnesses:

C. CLARENCE POOLE, WILLIAM L. HALL.

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