US724222A - Rotary engine. - Google Patents

Description

No. 724,222. PATENTED MAR. 31, 1903.

A. L. TREESE. f

ROTARY ENGINE.

` APPLIUATIQN FILED MAY i1. 1902. NQ MODEL. 2 SHEETS-SHEET 1.

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No. r124,222. PATBNTBD 122.11.31, 1903. A

' -A. L. TRBBSE.

' ROTARY ENGINE.

4 Y APPLIoATroN FILED MAY 1.7. 19'02. No MODEL. 2 SHEETS-SHEET 2.l

" ATT YS.

ED STATES` PA ENT OFFICE. l

ALBERT LEROY -TREESE, OF JENNINGS, OKLAHOMA TERRITORY, ASSIGNOR OF SEVEN-EIGHTHS TO WILBER E. CANFIELD, GEORGE W. CANFIELD, AND WALTER BRUCE HUDSON,OF JENNINGS, OKLAHOMA TERRITORY.

ROTARY ENGINE.

SPECIFICATION forming part ef Lettere Patent No. 724,222, dated Meren 31, Ie.

Application iild May 17, 1902. Serial No. -107,760. (No model.)

To all whom it may concern:

Be it'known that I, ALBERT LEROYTREESE, a citizen of the United States, and a resident of Jennings, in the county of Pawnee and Territory of Oklahoma, have invented a new and Improved Rotary Engine, of which the following is a full, clear, and exact description. Y

This invention relates to a rotary engine Io which may be used in connection, with all The invention lies in certain novel features zo of construction and a certain arrangement of parts, as will be fully pointed out hereinafter. This specification is an exact description of one example of myinvention, while the claims define the actual scope thereof. Reference is to be hadto the accompanying drawings, forming a part of this specification, in which similar characters of reference indicate corresponding parts in all the views.

Figure 1 is a vertical section of the invention. Fig. 2 is a cross-section on the line 2 2 of Fig. 1. Fig. 3 is a sectional elevation on the line 3 3 of Fig. 1, and Fig. 4 is a sectional elevation on the line 4 4 of Fig. 1.

The engine is provided with a suitable base 5 5 10, having pedestals 1l and l2 erected thereon. On the pedestal/11 is mounted rigidly a hollow journal 14, which serves the double purpose of carrying o the exhaust-gases and of partly mounting the cylinder. On the in- 4o ner portion of the-hollow shaft 14 turns the hub 15 of the cylinders 16. These cylinders are shown to be four in number (see Fig. 2) and are disposed radially of the hollow shaft 14, their lower ends being joined rigidly together by a band 17, which serves also as a pulley from which to transmit the motive power of the engine. The cylinders 16 are cast integrally or otherwise rmly connected together at their inner endsand have a cham- 5o ber 18 at said ends, as shown. Steam-passages 19 are formed along the length of the cylinder 16, these passages communicating with the cylinders at their outer ends and running to a central hub-like portion 20 at the side opposite the hub member 15. 2l indi- 55 cates a passage in this hub-like portion 20, such passage being centrally located and leading into the chamber 18. Bolted or otherwise fastened rigidly to the said -hub-likeportion 20 is a valve-chest 22, and in this valve-chest 6o is located the normally stationary valve 23, such valve being formed with a feed-port 24, adapted to be placed successively in communication with the steam-passages 19 and with an exhaust-port 25, which is of such form that it is always in communication with the passages 21 and is placed successively in communication with the passages 19. The valvechest 22 has a tubular extension or journal 26, which is mounted in the pedestal 12 and 7oA has a stuffing-box 27 at its outer end through which passes the hollow stern 28 of the valve 23, this stem serving not only properly to sustain the valve, but also to conduct the steam to the steam-chamber of the valve-chest 22, n

the stem being formed at this point with perforations 29, which permit the lsteam to pass from the stem into the steam-space of the valve-chest.

30 indicates the steam-supply pipe, which 8o has connection with the stem by moans of a tixture.31, which allows the stein to rock relatively to the steam-pipe.

32 indicates a hand-lever attached to the stem to facilitate throwing it from one position to the other to reverse the engine.

33 indicates a pipe for carrying off the gases, such pipe forming a continuation of the hollow shaft 14.

The pistons 34 work in the respective cylinders and have their rods 35 joined by a pin 36 to a flange 37, formed on the inner end of the hollow shaft 14 kwithin the chamber 18, such pin being located eccentrically to the center of the shaft, or, in other'words, with 95 the center of rotation of the piston.

The parts being thus constructed and arranged, the operation may be traced as follows: As the steam enters the stem 28 it passes by the port 24 and passage 19 to the outer end of the corresponding cylinder. The cylinders rotating continuously successively place the ports 19 in communication with the steam-feed port 24. The ports 19 are also IOO successively placed in communication with the exhaust-port 25, and while one piston is on the working or impulse stroke the other piston is on the exhaust-stroke, as indicated by the arrows in Fig. l. Referring to Fig. 2, let it be assumed that the cylinders are turning in the direction of the arrow. The upper central piston will then be on the beginning of its working stroke, the left-hand piston will be at approximately the center of its working stroke, the right-hand piston will be at the center of its exhausting stroke, and the lowermost piston will be at the beginning of its exhausting stroke. By the reactionary force of the steam and the eccentric location of the pin 36 the cylinders, with the band 14, are caused to turn continuously, and the motive power is derived from this band as contradistinguished from a centrally-located rotary shaft. It is obvious that the engine may be Very quickly and easily reversed by throwing the valve 24 from one position t0 another.

Various changes in the form and details of myinveution may be resorted to at will without departing from the spirit of my invention. Hence I consider myself entitled to all forms of the invention as may lie withinl the intent of my claims.

Having thus described my invention, I claim as new and desire to secure by Letters Patent- 1. Arotary engine, comprising a hollow stationary shaft, a cylinder arranged to turn around the center thereof, a piston working in the cylinder, aconnecting-rod attached to the piston and to the shaft eccentric to the center of the latter, said cylinder having a steam-port leading toits outer end and an exhaust-port situated adjacent to the center of the said hollow shaft, a Valve-chest connected with the cylinder and covering the said ports thereof, a stationary valve situated in the valve-chest, and means for supplying the steam to said valve-chest, said means for supplying the steam comprising a hollow valvestem with an opening enteringinto the steamspace of the valve-chest.

2. Arotary engine, comprisinga hollow stationary shaft, a cylinder arranged to turn around the center thereof, a piston working in the cylinder, a connecting-rod attached to the piston and to the shaft eccentric to the center of the latter, said cylinder having a steam-port leading to its outer end and an exhaust-port situated adjacent to the center of the said hollow shaft, a valve-chest connected with the cylinder and covering the said ports thereof, a stationary Valve situated in the valve-chest, means forsupplying the steam to said valve-chest, said means for supplying the steam comprising a hollow valve-stem with an opening entering into the steam-space of the valve-chest, said valve-stem projecting outside of the engine, and a lever attached tothe stem to permit reversing the valve.

3. The combination of two bearings, a hollow shaft rigidly mounted in one, a valvechest, a lateral extension thereofrevolubly mounted in the other bearing, a cylinder fastened to the valve-chest to turn therewith, said cylinder having a steam-passage leading to its outer end and an exhaust-passage leading to the hollow shaft, a stationary valve mounted in the valve-chest, means for supplying steam to the steam-chamber of the valve-chest, a piston working in the cylinder, and a connecting-rod attached to the piston and to the hollow shaft, said attachment being eccentric with respect to the shaft.

4. The combination of two bearings, a hollow shaft rigidly mounted in one, a valvechest, a lateral extension thereof revolubly mounted in the other bearing, a cylinder fastened to the valve-chest to turn therewith, said cylinder having a steam-passage leading to the hollow shaft, a stationary valve mounted in the valve-chest, means for supplying steam to the steam-chamber of the valve-chest, apiston working in the cylinder,a connectingrod attached to the piston and to the hollow shaft, said attachment being eccentric with respect to the shaft, the said means for supplying steam to the steam-space of the valvechest comprising a hollow Valve-stem with a perforation discharging into the valve-chest, said valve-stem projecting outward of the engine, and means in connection with the valvestem to permit rocking it to reverse the valve.

5. A rotary engine, comprising a cylinder mounted to rotate, a piston movably itted in the cylinder, a connecting-rod for the piston, means for holding the inner end of said rod eccentrically to the center of revolution of the piston, and means for supplying and exhausting the motive iiuid, said means including a valve stationary with respect to the piston, and a stem for the valve, said stem being hollow to conduct the motive Huid and having a lateral opening near the valve to permit the motive fluid to pass from the stem through the valve.

6. A rotary engine, comprising a cylinder mounted to turn and having steam feed and exhaust ports leading to and from it, a piston working in the cylinder, a rod attached to the piston, means for holding the inner end of said rod eccentric to the center of rotation of the cylinder,a valve bearing against the cylinder and coacting with the feed and exhaust ports thereof,said valve being stationary with respect to the piston, and a stem attached to the valve, said stem being hollow to conduct the motive fluid and having a lateral opening near the valve to permit the motive fluid to pass from the stem to the valve.

In testimony whereof I have signed my name to this specification in the presence of two subscribing witnesses.

ALBERT VLEROY TREESE.

Witnesses:

W. B. HUDSON, f W. E. CANFIELD.

IOO

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