US179188A - Improvement in valves for direct-acting engines - Google Patents

Description

J. GOOSE, J. E. ROGERS & G. GOOSE.

VALVE FOR DIRECT ACTING ENGINES.

Patented. June 27, 1876.

' valve, having its large surface Wlll be seen that these auxiliary valves are distance beyond the face of the valvepiston. 'Thus it is kept in its proper position by the UNITED S'rx'rns PATEN'I FFIE.

JoHN eo osn, JOHN H. noenns, AND enonen GOOSE, 0F SMETHWIOK,

' GREAT BRITAIN.

IMPROVEMENT IN VALVES FORDlRECT-ACTING ENGINES.

Specification forming part of Letters Patent No. 179,188;

dated J une 27, 1876; application filed September 23, 1874.

To all whom it may concern:

Be it known that we, JoHN Goosn, JOHN EDWARD ROGERS, and GEORGE Goosn, all of Smethwick, in the county of Stafford, in the Kingdom of Great Britain, engineers, do hereby declare that our invention for Improvements in the Method of Working the Valves of Steam Pumping and other Engines is fully described in the following statement that is to say:

Our invention consists in working the valves of steam-pumps and other reciprocating engines by the direct action of the steam or other motive power employed.

For illustration of our invention as applied to steam-pumps, (and which would be similar in other engines,)' besides the ordinary ports employed to work the main piston, we employ, in addition, two auxiliary ports, having communication with the val ve-piston, allowing the steam from behind it to enter these ports after it has passed it in its stroke. Each of these auxiliary ports is fitted with a small-auxiliary exposed to the steam as it enters down the ordinary port for Working the main piston, and the smaller surface exposed to the action of the steam from the auxiliary port. By this arrangement it kept in their seats at whichever end the main piston may be receiving steam; but as it ap-' proaches the opposite end, and having passed the auxiliary port, (that end being the exhaust, and there being, therefore, no pressure on the auxiliary valve from the ordinary port,) the steam lifts it and enters on the valve-piston, and drives it in the direct-ion necessary, which motion is repeated as the main piston performs its stroke. For the exhaust of this valve-piston we employ a tube or rod passing through it with closed ends, and also through the exhaust port or ports communicating with it, and which tube or rod extends a suitable steam-chest lids, or other suitable stops, ports being cut in it to allow the steam to exhaust at proper times.

We use, at our option, either the circular or slide valve in the working of our engine. We

, E and E putting the main valve also, if necessary, use stops to regulate the lift ot' the auxiliary valves,which may be doublefaced.

That our invention may be better understood, we have annexed drawings thereof, which we now proceed to describe.

Figure 1 shows an'elevation, in section, of the cylinder, with the arrangement of valves. A, A, and B are the auxiliary valves, working in combination with the main valve D. I, 1, and H are the ordinary exhaust and feed ports. are two auxiliary ports leading from the interior of the cylinder onto the ends of the main valve D and auxiliary valve B. K is an ordinary piston. 0 shows the entrance of the steam for working the engine. L is a finger, worked by the shaft and handle W, for D in position for starting. M M and N N are stops for regulating the working of the auxiliary valves A, A, and B. F and F are ports leading from the ordinary ports I and 1 into the space above the auxiliary valves A and A.

Fig. 2 shows the same engine in section.

is a plan view of Fig. 1, with the steam-chest removed, for the purpose of more distinctly showing the proposed arrangement of the ports.

For illustration of the Working of the engine, suppose the valve 1) to be in the position shown in Fig. 1. The steam entering the pas sage I onto the piston K (moving it in the direction of the arrow) will also have entered through the passage F onto the auxiliary valve A, forcing it into its place, and stopping the communication of the passage E with the main valve D; but after the piston has passed the opposite auxiliary port E, the steam lifts the auxiliary valve A, and enters on the main valve D, forcing it over, and changing the action of the steam to the other side of the main piston, which steam will also close the auxiliary valve A in its turn, the auxiliary valve B being brought into the same position to the main valve as here shown, so allowing the steam to pass away into the ordinary exhaust-port H after it has done its Work, and thus leaving no hinderance to the steam acting on the other end.

The auxiliary valve B is constructed in the 'B to the point where the grooves are cut it allows the steam to pass into the exhaust H, as described and shown. This auxiliary valve B may be constructed from a piece of tubing having its ends closed, and then drilling holes into it to allow the steam to pass into the exhaust.

We claim-= In combination with the main valve D, the auxiliary valves A A B and stops M N, as described.

JOHN GOOSE. JOHN EDWARDROGERS. GEORGE GOOSE.

Witnesses:

G.- R. HOLLAND, P. EMERY DAVIES.

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