US231871A - Rotary engine - Google Patents

Description

'(No Model.)

P., L., & H. VANBRIGGLE.

Rotary Engine.

Patented Au .531, I880.

INVENTOR: -iW/' BY Vrm fin ATTORNEYS.

N.PETF.RS: FHOTO-UTHOGRAFHER, wAsHmGTqN. mt;

UNITEn STATES PATENT Grinch,

PETER VANBRIGGLE, LEWIS VANBRIGrGrLE, AND HENRY VANBRIGGLE, OF

KEMP T ON, INDIANA.

ROTARY ENGINE.

SPECIFICATION forming part of Letters Patent No. 231,871, dated August 31, 1880. Application filed May 1 3, 1880. (No model.)

To all whom it may concern Be it known that we, PETER VANBRIGGLE, LEWIS VANBRIGGLE, and HENRY VANBRIG- GLE, of Kempton, in the county of Tipton and State of Indiana, have invented a new and Improved Rotary Engine, of which the following is a specification.

The object of this invention is to provide a simple, durable, and economical self-governing rotary engine.

The invention consists in regulating the supply of steam to the engine by forcing air from the steamcylinder into a connected airchamber to operate a cut-off valve therein, in-

J creased speed of the engine causing a corresponding reduction in the supply of steam.

Figure 1 is a'front elevation of the engine,

partly in section. Fig. 2 is a sectional side elevation on line a; :12, Fig. 1. Fig. 3 is an ele- "ation of the rear plate of the engine-cylinder,

showing the interior eccentric. plan view on line 3 y, Fig. 1.

Similar letters of reference indicate corre sponding parts.

In the drawings,A represents the body or cylinder of the engine, on the inner face of which, around the driving-shaft B, is an oblong eccentric, O, formed by a corresponding channel or groove, a, made in said face. The shaft B passes centrally and horizontally Fig. 4 is a through the engine body or cylinder A, and

rests in suitable bearings b on the outside of the said case A, and has keyed uponit, within the said case or body, a wheel, D, constructed in two circular sections, 0 c, that are set together face to face, each section being pro vided with peripherally-grooved flanges d d, as herein shown, in the grooves of which flanges suitable paokingrings f are placed. The section 0 of said wheel D is provided with four equidistant sockets, g, extending from its periphery to its bore, and with an equal number of radial slots, h h, cut through its outer face, and communicating respectively with said sockets g.

E E represent four rectangular pistons or gates, whose round or cylindrical ends, properly packed, are entered into the radial sockets g g of the wheel-section 0, while their rectangular portions project transversely across the faces of both wheel-sections c c and close down in the peripheral sockets i 2'. These pistons or gates E E areheld in position and their radial movements restricted by the studs F F, that are entered through the radial slots 7th into the cylindrical ends of said pistons E E, and are adjustable thereon, and said studs are preferably provided about their necks with anti-friction rings or collars for the purpose ofdiminishin g their friction against the eccen- 6o trio 0 or the sides of the groove to when the engine is in operation, the heads of said studs F F being engaged in the channel or groove to when the partsare in position, so that when the wheel D revolves the pistons or gates E E are moved in or out in turn by the engagement of their corresponding studs F F against the upper edge of the channel or groove (0 and against the lower edge of the eccentric C, respectively, while at the same time the rectan- 7o gular portions of the said pistons E E engage successively at each revolution of the wheel D against the concave face of the adjustable abutment G, and are thereby forced inward, and so held until they have passed said abutment, when said pistons E Eare forced outward fully across the annular steam-space between the periphery of'the Wheel 1]) and the inclosing engine cylinder or body A by the eccentric G, as set forth. This abutment Gis 8o furnished with two perpendicular ports or passages, 70 76, one on either side, that may be used at pleasure for the supply of steam to the en gine-cylinder, or for conducting air from said cylinder A to the connecting air-chamber H, the port lo being used for the one purpose, while the port It is used for the other. This abutment G is vertically adjustable by means of the set-screws Z 1, that are entered from the top of the cylinder A, so that a tight joint may 0 always be maintained between it (the said abutment) and the wheel D. Intersecting these ports 70 lcin theabutment G, atapoint j ust below their connection with the valve-chamber L, are the lateral ports or passages m m, that, 9 5 extending in opposite directions, connect with the vertical and parallel tubes I 1, that themselves connect at their upper ends with the horizontal tubes 1 I, which enter opposite sides of the air-chamber H. 10o

L is the valve-chest set on'the top of the abutment G, which extends out of the cylinder A, and within the chamber L of said valve-chest L is the sliding valve M, that is operated by means of the rod M and lever M to open and close the ports k k at will, opening one when closing the other of them. Within the air-chamber H, that in this instance is set above the valve-chest L, is a piston, N, whose rod N projects downward through said chamber H and into the said valve-chestL and over the steam-supply port 0, so that it may regulate or govern the supply of steam to the engine, and about said piston-rod N, between the piston N and the bottom of the chamber H, is a spiral spring, P, that operates to hold up said rod N, so that the steam-supply port 0 shall be open to its fullest extent.

The lateral ports or passages m m are provided with valves n a, that are operated synchronously in opposite directions by means of gllleir connecting-rods 0 0 and connected lever II Q represents the exhaust-port of the engine. Steam entering the supply-port 0 when the parts are in the position shown in Fig. 1 will enter thevalve-chamber L, and thence, through the steam-passage 70, into the enginecylinder, and operate upon the left-hand piston E, making the wheel D revolve in the direction of the arrow in Fig. 1, As this piston E reaches the exhaust-port Q the steam behind said piston is exhausted through said port Q. Continued revolution of the wheel D carries this piston around, and the air that said piston presses in frontof it is forced up through the passages k m, valve n, connecting-tubes I l, and into the air-chamber H, to operate upon the piston N, to press said piston N down, so that the piston-rod N shall cut off a portion of the steam-supply through the supply-port O.

The higher the speed of the engine the greater will be the force with which the air is forced by the moving pistons E into the airchamber H to regulate the steam-supply. In the top of this chamber H is a valve or cock, p, by means of which the pressure of air within said chamber may be relieved at any time, so that the cut-oft device shall be fully or partially effective or wholly inoperative at will.

By moving the lever M" in the opposite direction the moy ement of the engine will be reversed, the steam then entering the cylinder through the passage 70, while the air is forced from the cylinder through the passage 70 and its communicating pipes into the air-chamber H.

Having thus described our invention, we claim as new and desire to secure by Letters Patent- 1. In a rotary engine, the abutment G, provided with steam and air ports or passages k m m, substantially as herein shown and described.

2. The combination, with the cylinder A, provided with eccentric G, of the wheel 1), provided with sliding pistons or gates E E, abutment G, provided with steam and air passages k k m m, and ainchamber H and its connections, provided with piston and rod N N, substantially as herein shown and described.

' PETER VANBRIGGLE. LEWIS VANBRIGGLE. HENRY VANBRIGGLE. Witnesses:

T. A. BALLENGER, M.-D., W. A. GREEN, M. D.

Images