US13019A - Steam-engine regulator - Google Patents

Description

UNITED STATES PATENT OFFICE.

HENRY VEBSTER, OF BEETOWN, WISCONSIN.

STEAM-ENGINE REGULATOR.

Specicaton of Letters Patent No. 13,019, dated June 5, 1855.

To all whom t may concern Be it known that I, HENRY lVnBsTER, of Beetown, in the county of Grant and State of l/Visconsin, have invented a new Governor' for Marine and other Steam-Engines; and I do hereby declare that the following is a full, clear, and exact description of the same, reference being had to the accompanying drawings, forming part of this specification, in which- Figure 1, is a vertical section of the governor and F ig. 2, a vertical section of part of the same at right angles to Fig. 1.

Similar letters of reference indicate corresponding parts in both figures.

This governor consists of a ioat placed within a vessel which is kept constantly supplied with water by a small pump or pumps driven by the engine, and which is provided with a suitable aperture from which there is a const-ant escape which is regulated by a valve. The iioat is connected with a throttle valve or cut ofl'. Vhen the engine continues to run at the desired velocity the water escapes from the vesselas fast as it is pumped in, but if the speed of the engine increases, the water ,is pumped in faster than it can escape and the float rises and by its action on the throttle or cut off causes the supply of steam to be diminished or if necessary stopped altogether, and if the speed of the engine diminishes the level of the water in the vessel falls and with it the ioat thus acting on the throttle or cut off to increase the supply of steam.

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

A, A, are two double acting force pumps whose pistons are driven by two cranks a, a, set at right angles to each other on the shaft B, so as to keep as nearly as possible a continuous flow of water into the vessel C. The shaft B, is to be driven by a belt or gearing from the main shaft of t-he engine so that the velocity of the pumps always corresponds with that of the engine.

D, is a float resting on the column of water in the vessel C, and cl, is a rod attached to the float and working through a guide to connect with the throttle valve or cut olf.

e, is the escape opening of the vessel C, fitted with a Hap valve f.

E, Fig. 2, is a rod suspended'loosely from an arm g, which is secured to the rod d. This rod has attached to its lower part by a hinge joint z', a variable inclined piece y', which regulates the opening of the valve f, This variable inclined piece is adjusted at a suitable inclination by a set screw Z, in the rod D, and the rod D, is adjustable toward .or from the valve by a screw m, which works in a fixed guide piece n.

The valve f, hangs quite free but when the governor is in operation will be forced by the escaping water into contact with the inclined piece j. The' rod E, with the inclined piece are so adjusted by the screw m, that when the engine works at the desired speed the valve f, will open just wide enough` for the escape of the water pumped up to the vessel C, by the pumps and allow the float to remain stationary but when the velocity of the engine increases the water being pumped up faster will rise in the vessel and cause the Hoat D, to rise and carry up Y the rod E, whose inclined piece y', in rising will gradually close the valve thus checking the escape of water and causing the iioat to rise still faster so that its action on the throttle valve or cut off will be very quick, and if the velocity of the engine is not almost immediately reduced the steam will be shut off altogether. Vhen the velocity ol' the engine is diminished, the level of the water in the vessel C, begins to descend and with it the float D, which brings down the rod E, and allows the valve f, to open. wider, thus facilitating the escape of water and causing the float to descend still faster to give a greater supply of steam. The quickness with which the valve opens and closes as the Hoat rises depends on the inclination of the variable piece j.

This governor is very sensitive and quick in its action and would be well adapted for marine engines. Owing to the small size required for the pumps the escape water will be so small as to be productive of no inconvenience and to be easily carried away.

Instead of the flap valve f, a slide valve may be employed, connected with the float in such a Way as to Contract the opening' as flap Valve f, and the rod E, With its inclined the float rises and enlarge it as it falls. This piece y', all applied and operating substan- 10 flott would be thehequivalent of the Hap tially as herein set forth.

Va Ve re resented t ou h in some res eats w 5 might mit Work as Well.g p HENRY WEBSFLR' What I claim in this class of regulators Witnesses:

is DAN. STEWART,

Controlling the escape of Water by the MOSES A. ROGERS.

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