US600561A

US600561A - Rotary steam-engine

Info

Publication number: US600561A
Authority: US
Publication date: 1898-03-15
Anticipated expiration: 1915-03-15

Description

(No Model.) 2 Sheets-Sheet 1.

G. SPBICE. ROTARY STEAM ENGINE.

No. 600,561. Patented Mar. 15,1898. I

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Witnesses. Inventor.

Attorney.

UNITED STATES PATENT OFFICE.

GEORGE SPEICE, OF PAULDING, OHIO.

ROTARY STEAM-ENGINE.

SPECIFICATION forming part of Letters Patent No. 600,561, dated March 15, 1898.

Application filed March 1 8, 1 8 9 7.

T0 rtZZ whom it may concern:

Be it known that I, GEORGE SPEICE, a citizen of the United States, residing at Paulding, in the county of Paulding and State of Ohio, have invented a certain new and useful Improvement in Rotary Steam-Engines,of which the following is a specification.

My invention relates to improvements in rotary engines, and particularly to rotary steamengines.

The objects of my invention are, first, to distribute the power evenly around over the rotary cylinder; second, to provide improved means of reversing a rotary engine; third, to provide a' rotary steam-engine simple in construction and efficient in use.

Further objects will definitely appear in the detailed description to follow.

I accomplish these objects of my invention by the mechanism and means described in the following specification, definitely pointed out in the claims, and illustrated in the drawings, in which- Figure 1 is a longitudinal vertical sectional elevation of my improved engine, taken on a line corresponding to lines 1 1 of Figs. 2 and 3. Fig. 2 is a transverse detail sectional elevation taken on line? 2 of Fig. 1, showing the steam-supply connections and the exterior of the controlling-valves. Fig. 3 is a transverse detail sectional elevation taken on line 3 3 of Fig. 1, showing the structure of the rotary piston, the cylinder, and the exhaust connections. Fig. 4 is an enlarged detail sectional elevation taken on line 4 4 of Fig. 2, showing the structure of one of the reversing or controlling v'alves. Fig. 5 is a detail elevation of a portion of a cylinder head or plate B, showing the inletports f. Fig. 6 is an enlarged detail view of the lever and connecting mechanism which controls the reversingvalves. Fig. 7 is a detailed view of the portion of the front face of the rotary piston, showing packing around the pockets E.

In the drawings all of the sectional views are taken looking in the direction of the little arrows at the ends of the section-lines.

Similar letters of reference refer to similar parts throughout theseveral views.

Referring to the lettered parts of the drawings, Ais the base,which supports the remaining parts of my improved engine, which I preferably make hollowand of cast metal. On this are suitable brackets A, toward each Serial No. 628,235. (No model.)

end, which carry the power-shaft D in suitable boxes at the top. On this shaft are situated the usual pulley and balance-wheel, though in my improved engine the balancewheel is not an absolute necessity. The cylinder B, through the center of which the shaft D passes, is secured by suitable bolts to the base A. An exhaust-passage F extends around the periphery of the same and is connected to a large exhaust-pipe F,which I preferably connect at the bottom and pass out through the base. Exhaust-ports a extend transversely in the cylinder and connect with the exhaust-passage F. The said passages a correspond in number to the Wings of the rotary piston. The rotary piston D is secured t0 the shaft D, and its periphery fits the interior of the cylinder B and is revoluble therein. This rotary piston is formed with wings E E, extending radially from near the center thereof outwardly, one side of the piston being solid, thus forming a series of pockets around the exterior of the piston. The periphery of the piston is continuous, with the exception of the exhaust-passages a between each of the wings E, which correspond to the passages a in the cylinder itself. The spaces between the wings E E are left open 011 one side, and against this side of the piston fits the cylinder-head B. Through this cylinderhead extends a pair of ports f, sloping in opposite directions at intervals corresponding to the intervals between the spaces formed by the partitions E E. Over each pair of ports f is a valve-casing O. This contains a hinged valve 0, supported on a pivot O, situated between the ports f. A supply-pipe H leads to the valve-casing. By shifting the valve 0 from side to side the direction of the current is changed from one port f to the other and the impulse of the fluid admitted therethrough reversed. These valves are each provided with a little lever I, which are connected together continuously around the piston by links J, so that all can be operated together. They are operated by a little handle I, formed by an extension of the levers I. A suitable springcatch K is provided with a pin b thereon to engage in a notch b on one of the levers Ito retain the same in position, though this springcatch is not an absolute necessity. A supplypipe G for the engine delivers at one end thereof, where it is provided with a hollow disk G, to which is connected a separate rotates it allows the exhaust-ports a a to conpipe H for each of the valve-casings C, as clearly appears in Figs. 1 and 2. Any suitable throttle-valve can be provided in the supply-pipe G, which I have deemed unnecessary to illustrate here, as it is no part of my invention.

When steam is admitted to my improved engine it passes through the supply-pipe G, on through the smaller supply-pipes H, into the valve-casing C, where the hinged valve C deflects the same and allows it to deliver itself through one of the sloping ports fin each of the valve-casings. The steam passing at this point strikes against each parti tion E, giving the same an impulse, whichl causes the engine to rotate. As the piston nect and permits the steam to exhaustthrough the passage F down and out through the exj hau'st-pipes f. As the piston still continues f to rotate, the emptied chambers come opposite the next port 1 and receive another impulse. Thus the wheel receives as many impulses as there are Wings E.

I of course provide suitable steam-packing in my engine where needed, as the strips of packing m on the periphery of the piston D, the strips of packing n on the face of the piston, and packing at other points which experience and continued use mayindicate necessary.

Suitable stuffin-g-boxes e are provided for the stems O of the valves 0, though any other suitable packing may be provided.

I desire to state that the number of partitions E can begreatly varied in my improved i engine and that the number of valves on the 2 face of the cylinder can also be varied and; that a single valve will cause the engine to operate, though with very much less power than a larger number. Where it is not de- 1 sired to have a reversible engine, the hinged 5 valve 0 could be dispensed with and the current be delivered into the engine always in" the same direction.

From this statement it will be clear that my engine is capable of considerable variation in its details without departing from my l invention.

Having thus described my invention,what I claim as new, and desire to-secure by Letters j Patent, is-

1. In a rotary steam-engine, the combination of a base A, with suitable brackets A, thereon with journal-boxes atthe top; a shaft D, thereon with suitablepulley and balance- Wheel thereon; a steam-cylinder B, supported on said base with its center in line with the shaft, having an exhaust -passage F, 1 around the same with exhaust-ports a, opening into the same at intervals; a rotary piston D, secured to said shaft D, within said cylinder having radially-situated wings E, extended to near the periphery, one side of which is "solid and the other open and having exhaust-ports a, leading fromthe chambers between the wings to the periphery; a head or plate B, to said cylinder B, containing pairs of oppositely-pointing ports f, for each wing E, of the piston; avalve-casing C, over each pair of ports with a valve 0, therein secured to pivot-stem C, between the ports;

a supply-pipe H, opening into the central part of each valve-casing from a main supply-pipe G; a lever connected to each valvestem 0; links connecting said levers I, together; a handle I, on one of said levers to actuate them all to shift the valves; and a spring-catch K, for one of said levers all coacting together substantially as described for the purpose specified.

2. In a rotary steam-engine, the combination of a base A, with suitable brackets A, thereon with journal-boxes at the top; a shaft D, thereon with suitable pulley and balancewheel thereon; a steam-cylinder B, supported on said base withits center in line with the shaft, having an exhaust-passage F, around the same with exhaust-ports a, opening into the same at intervals; .a rotary piston D, secured to said shaft D, within said cylinder having radially-situated wings E, extended to near the periphery, one side of which is solid and the other open and having exhaustports a, leading from the chambers between the wings to the periphery; a head or plate B, to said cylinder B, containing pairs of oppositely-pointing ports f, for each wing E, of the piston; a valve-casing C, over each pair of ports with a valve O,therein secured to pivotstem C,between the ports; a supply-pipe I-I, opening into the central part of each valvecasing from a main supply-pipe G; connections between the valves to reverse all to-.

gether coac'ting together substantially as described for the purpose specified.

3. In a rotary engine the combination of a suitable base with brackets having suitable journal-bearings therein; a shaft supported in said bearings; a steam-cylinder supported on said base with its center in line with the shaft having an exhaust-passage extending entirely around the same connected to an exhaust-pipe and ports leading from the cylinder to the exhaust-passage; a rotary piston within said cylinder and seen red to said shaft having radial wings extending to near the 'per'i'phery'with ports leading from the chambers between the wings to the periphery; a head on said cylinder with radially-situated pairs of ports pointing in opposite directions corresponding to each wing of the piston; a supply-pipe to each pair of ports and a valve to direct the steam through either port to make th'e engine reversible coacting as specified. In Witness whereof I have hereunto set my hand and seal in the presence of two witnesses.

Witnesses:

T. B. REESE, OLIVER MoRRoW.