US131282A - Improvement in governors for steam-engines - Google Patents

Description

H H. LAMONT. Improvement in Governors for Steam Englnes Patented Sep.10,1872.

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noon n. LAMONT, or 'sAN FRANCISCO, CALIFORNIA, ASSIGNOR To JOSHUA HENDY, or SAME PLACE.

IMPROVEMENT IN GOVERNORS FOR STEAM-ENGINES.

Specification forming part of Letters Patent No. 131,282, dated September 10, 1872.

SPECIFICATION. To all whom it may concern:

Be it known that I, HUGH H. LAMONT, of San Francisco, in the county of San Francisco and State of California, have invented a new Governor for Regulating 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 and to the letters of reference marked thereon.

Figure 1 shows an elevation of the complete governor. Fig. 2 is a plan of the crosshead H and a side view of the ball with arm. Fig. 3 is a plan of the elliptic spring when straightened.

A is the valve-chamber,with valve A. The

cover B carries a small stuffing-box, E, for the valve-stem E, and a hollow spindle, F, on its top, besides a bracket, B, with a sleeve, 0, through which runs a small shaft to transmit rotary motion from the pulley D to the wheel Q and to the other wheel 0. This wheel 0 is fastened to a sleeve, G, which is movable around the hollow spindle F, between the top of the cover B and a collar, Z, which is fastened to the spindle F by a set-screw, and which forms an oil-cup to lubricate the movable sleeve G below it. The sleeve G forms a cross-head, H H, near its upper end to receive the legs of a pair of arms, L L, with balls K K at the upper ends, which legs are movable around the pins h h in vertical planes. They are held upright-that is, the balls upby a spring, S S, which is connected with the outer ends to lugs N N cast on the balls, by means of hingejoints P P, and which spring is made to work inverted or to hold the balls toward the spindle F. The center of the spring S carries a collar, V, projecting on each side, with a round hole through its center, and slips over another sleeve, W, which is movable along a screw-bolt, T, and which can be kept steady in any place desired by a pair of nuts, U U The spring S S, with collar V, is movable around the sleeve W wherever it may be held by the nuts IF U and it receives its motion through the connection with the balls K K, legs L L, and cross-head H H on sleeve G, which again is turned by means of the gearing O Q. The screw T does not turn. It is fastened in the top of a cap or sleeve, R, which can slide up or down on the spindle F, the same fitting inside of the bore of the cap R to guide the cap perfectly straight in its motion. This cap R is fastened to the valve-stem E by a pin running through both at the upper end E of the valve-stem E, and as soon as the sleeve R is sliding up or down on the spindle F it will move the valve-stem E up or down, and through this movement open or shut the valve A inside the valve-chamber A. This sleeve R will commence moving down as soon as theballs K K are being turned around,which, by their centrifugal action, will pull the ends 1? P of the bent spring S S apart, straightening in this way the spring, the same time pulling the spring bodily down by the lowering of the plane in which they move when increasing their velocity. These two actions on the spring S S-straightening the same and pulling it down bodily-gives a very quick and very sensitive motion to the screw T or sleeve R, and the least variation in the velocity of the balls K K will show a considerable difference in the position of the sleeve R, and through it in the valve A, which will open or close accordingly, and regulate the admission of steam through its openings to the steam-em gine very rapidly.

The movement of the balls K K is limited by two elongations, I I, on the lower ends of the arms L L, which will touch on the hub of the wheel 0 as soon as the balls K K are gone outward far enough to give as much mo tion to the valve A as is necessary to close its passage-ways entirely. These prongs I I also prevent the balls K K from falling down in case of any accident to the spring S. This spring S can be made of one or more equal strips of sheet-steel.

This governor is very simply constructed. It consists of' very few pieces, and they are easily replaced in case of any accident to any of its parts. It is also very easily adjusted to any speed of the engine by lifting or low ering the valve, by means of the nuts U U, on the screw T, above and below the sleeve W.

What I claim as my invention, and desire to secure by Letters Patent, isr The governor for regulating steam-engines, consisting of sleeve G with cross-head H H, spindle F, balls K K with arms L L I I, upright standing collar Z, sleeve or cap R with screw T, nuts U U and inverted elliptical spring S S hinged to the balls K K, in combination with the valve-stem E and valve A,

all constructed as specified, and as shown in annexed drawings.

HUGH H. LAMONT.

Witnesses:

JOHN MILLER, JOHN W. LITTLE.

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