US180604A - Improvement in pump-governors - Google Patents

Description

J. S. LEAS.

PUMP GOVERNOR. No.180,604. Patented Aug.1 ,1 876.

WITNESSES I N VEJV' TOR Attorney N- PETERS. FHOTULITHOGRAPHEIL WASHINGTON D. C.

UN TED STATES .J. SILAS LEAS, or ROCK IsLA'ND, ILLINOIS.

IMPROVEMENT IN PUMP-GOVERNORS.

Specification forming part of Letters Patent No. 180,604, dated August 1, 1876; application'filed June 2,1876.

To all whom it may COILOGT'It.

' construction and arrangement of .a governor or apparatus connected to a pumping-engine and the water-main, for the purpose of automatically regulating the operation of the engine by the varying pressure in the pipes when any plug, hydrant, or cock is opened, as

will be hereinafter more fully set forth.

In the annexed drawing, Figure l is a side elevation of my invention. Fig. 2 is a vertical section of a part thereof. a

A is the foundation on which the engine and governor are placed. B is the steam-cylinder, with steam-chest O and valve D. The stem at of this valve is connected to one end of a beam, G, which is pivoted in the top of a standard, E, and upon its other end a movable weight, E. This weight is hung on thebeam by a roller, 1), as shown, so as to move easily from one end to the other when the beam is out of a horizontal line. The weighted end of the beam G is held up by the pressure of water in the pipes, by means of a rod, I, pivoted to the beam, and passing loosely through a pipe, K, connected with the water-main. Ihe upper end of the pipe K is connected with the rod I near its upper end by means of a water-tight flexible and compressible cylinder or pipe, J, inclosing the rod I. Within the pipe K there will, in a full-sized governor, be radial arms or their equivalents, for guiding the lower end of the rod I, the upper end thereof being then also guided by any suitable means.

The rod I may be solid, but is preferably made hollow, as shown, from the lower end upward to near the top, and the surrounding cylinder, hose, or chamber-J, being watertight, prevents the escape of water, and causes the pressure thereof to act on the rod. The

weight H being set on the 'bearnat theprop'er point, and fastened by'aset-scr'ew, d, the pressure of the water holds this end of the beam'up, so that the valve D of the pumping-engine will stand open far enough to supply the requisite amount of steam to keep the pump working fast enough to maintain the-pressure at which the weight is set.

If a plug, hydrant, or cook in any of the Water-pipes connected with the one to which my governor is attached be opened, the pressure on the rod I is instantaneously reduced, and the weighted end of the beam drops, opening the valve D still more, soas to admit more steam to the pumping-engine, and cause the same to run faster and supply more water to the pipes.

My invention is more particularly designed for use in cities, towns, villages, factories, and other institutions where the pressure in the mains is maintained by pumps, to admit more steam to the pumping-engine, and thereby increase its velocity and increase the waterpressure in the mains immediately upon the discovery of fire in any part of the building or buildings connected by or with the same water-supply.

During the day-time the weight H may be fastened on the beam by the set-screw d; but

at night, especially, it should be loosened, and a stop, h, placedin or on the beam at such point where the weight, if placed there, would raise the valve D to give the required firepressure, say one hundred pounds.

The beam is graduated, and the stop h should be movable, so that it can be set for any pressure desired.

If the watchman during his rounds at night should discover fire in any part of the buildings it is not necessary for him to run back to the engine-room to put on more pressure, which delay, in many cases, would be fatal, but he simply opens the nearest cock or bydrant with hose to throw water on the fire, reducing thereby temporarily the pressure in the water-pipes, causing the beam to 'tilt, and the weight at once runs down tothe stop h and opens the valve to fire-pressure.

The increased pressure in the mains, caused by the increase of speed of the pump, balances the weight, and the pressure is always mainbe" regulated and controlled by the varying pressure in the pipes when a plug or hydrant is opened or closed, in order to automatically increase or diminish the supply of water.

The invention will operate at any point along the route of the main, and as many as may be desired may, therefore, be employed at various points, as occasion may require.

Having thus fully described my invention,

what I claim as new, and desire to secure by Letters Patent, isv 1. In combination with the'valve of a pumping-engine, the pivoted beam G, operated by the varying pressure in the mains, and the movable weight H, with roller 1), substantially as andt'or the purposes herein set forth.

2. The flexible and compressible tube or cylinder J, in combination with the pipe K, rod I, and beam Gr, substantially as and for the purposes herein set forth.

In testimony that I claim the foregoing as my own I aflix my signature in presence of two witnesses.

J. SILAS LEAS.

Witnesses:

W. '1. JOHNSON, O. L. EvER'r.

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