US23066A - Rotary engine - Google Patents

Description

' STATES BATN T ABRAHAM ANDREWS, OF BERNVILLE, PENNSYLVANIA.

ROTARY ENGINE.

i Specification of Letters Patent No. 23,066, dated March 1, 1859.

To all whom it may concern:

Be it known that I, ABRAHAM ANDREWS, of Bernville, Berks county, and State of Pennsylvania, have invented a new and useful Improvement in Rotary Engines; and I do hereby declare that the following is a full and exact description thereof, reference being had to the accompanying drawings,

making a part of this specification, and to.

the letters of reference marked thereon.

The nature of my invention is a device operating as a revolving cylinder with two arms acting as piston heads. Also a mortised valve lid, and the arrangement of plungers, all in combination and operating without the use of a crank.

To enable others skilled in the art to make and use my invention, I will proceed to describe its construction and operation.

Figure 1, represents a front view of ma chine; Fig. 2, `a side view; Fig. 3, a view of wheel showing the eccentric groove in which the rollers of the plungers operate; Fig. 4 a sectional end view of cylinder with its plungers and valves.

A represents an ordinary square frame to support the engine.

B represents the axle or main shaft to which I propose attaching a carriage wheel at each end, one wheel to run' independent of the other. This axle or shaft B, is the shaft of the revolving piston with two heads C, the head C, acting as piston heads and as one of these heads passes one of the valves D another valve D is opening on the other head and forcing it around, by this arrangement, I retain the full length of crank power without the use of a crank.

The steam is introduced through induction pipe IV, as shown on Fig. 4l, and I propose having three chambers, each of which will receive steam through induction pipe in a similar manner by a passage X through concave Y into the cylinder as shown on Fig. 4, and as a third chamber is taking steam the first one has not yet exhausted, consequently the first is working by expansion which is about the one-third of its revolution until it passes the passage X X into the cylinder, and alternately with the steam chamber and exhaust pipe F F. hen the piston is revolving in one direction one of these passages becomes the induction and the other the eduction way for the steam, and this is reversed when the motion of the pist0n is reversed the valve D has three apertures F, G, H, and as the steam enters at F it exhausts, at G, and on the opposite side the same, when reversed, the valve is open at H. The valve I, has one mortised aperture J, this mortise will enable me to reverse the engine with only the one cam wheel and the valve I, is pushed back and forward by the connecting rod K, which is operated by the cam or grooved wheel L, as it revolves with the shaft, B, there being a pin M on the connecting rod K, which moves in the eccentric groove N, of the wheel L. I thus use the steam and the power of exhaust with a saving of fuel, the plungers I), are attached to a frame R at each side, and this frame raises and lowers the plungers bymeans of the rollers S revolving in the eccentric grooves T, of the wheels U, which are fastened to and revolve with the shaft B. To reverse the engine I propose att-aching an ordinary lever at the grooved hub V, of the cam wheel L which operates the connecting 'rods K, so that the cam wheel L will be easily moved in or out.

I am aware that plungers and revolving steam pistons have been made and used but I do not claim either of them, but

That I claim as my invention and desire to secure by Letters Patent isy l. I claim the mortised valve, I, and its connection with the rod K as operated by the cam wheel L in combination with the said axle or shaft.

2. I claim the arrangement of the plungers P with their side rollers S and cam wheels U, in combination with the axleor shaft B substantially as herein described and for the purpose set forth.

ABRAM. ANDREVS.

Titnesses MICHL. K. BOYER, THOMAS C. DoNN.

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