US234573A - Valve - Google Patents

Description

2 Sheets-Sheet 1.

(No Model.)

J. R HILLARD'. Valve.

N 0. 234,573. Pate nted Nov. 16, I880.

INVENTOR;

WITNESSES N.PETRS. FHOT HER, WASHINGTON D C (No Model.) 2 Sheets-Sheet 2.

JP. HILLARD. Valve.

No. 234,573. Patented Nov. 16,1880.

Fig. 5

a 2 m a. t 1i [I WITNESSES I'NVENTORI.

NAPETERS, PHOTO-LITNDGRAPNER. WASHINGTONv D. C.

UNTTED (STATES PATENT FFICE.

JAMES P. HILLARD, OF FALL RIVER, MASSACHUSETTS.

VALVE.

SPECIFICATION formingpart of Letters Patent No. 234,573, dated November 16, 1880,

Application filed July 21, 1880.

To all whom it may concern:

Be it known that I, JAMES P. HILLARD, of Fall River, in the county of Bristol and State of Massachusetts, have invented a new and useful Improvement in Valves; and I 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.

This invention has reference to hydrant and other valves by which the flow of water or other liquid is to be controlled.

The object of this invention is to produce a valve in which the passage for the liquid when open shall be unobstructed and, as near as possible, direct, which shall not be liable to injury by the sudden increase of pressure caused by shutting off suddenly the flow of water, and shall be kept tight by the water-pressure exerted on the valve-disk.

The invention consists in providing the valvecase with holes or slits and placing on the same a valve-disk also provided with holes or slits and operated by a spindle and lever, as will be more fully set forth hereinafter.

Figure l is a view of the improved valve shown as a hydrant-valve and arranged so that it may be readily operated by the hand or foot. Fig. 2 is a sectional view of the valve, and Fig. 3 a view of the valve-disk. Fig. 4 is a front view, and Fig. 5 a side view, of a modification of the valve.

In the drawings, a is the valve-case. b b are the inlet-holes, corresponding with the holes I) in the valve-disk e. c is the sleeve supporting the stem f of the valve-disk e, and dis the discharge-opening of the valve.

The valve-disk e rests against the face of the valve, and is held against the face by the pressure of water on the valve-disk. The valvedisk may be faced with Babbitt or other composition metal, so as to form a tight joint. The valve is operated by the partial rotation of the valve-disk, so as to bring the openings 1) in the valve-disk opposite to the openings b in the valve-case when the valve is open, and is closed by bringing the solid parts of the valvedisk over the openings in the valve-case. To operate the valve-disk with ease the lever g is secured to the valve-stem, and to hold the valve-disk E against the face of the valve-case (No model.)

desirable that the valve shall be self-closing,

and for this purpose I place the weight It on the lever g, and to limit the motion of the valve-disk I place the two stops Z l on the valve-case. Theleverg, coming in contact with these stops, can move only from one side to the other.

In Fig. l the valve is shown used as a hydrant-valve, m representing the hydrant-pipe. The valve is shown closed by the weight k, and the rod a is shown connected with the lever g, so that by raising the rod 12 the lever can be raised until it comes against the stop I, when the valve is wide open, the valve-disk being partially rotated, so as to bring the openings 1) opposite the openings 1). As soon as the rod 11. is released, the weight It will close the valve by the partial rotation of the valvedisk, as is shown in Fig. l. The lever may be extended beyond the stem f, and the rod 0 maybe secured so that the "alveis opened by depressing the rod 0 and will close as soon as the valve is released by the balance-weight 70.

When the valve is to be used for a tankvalve the ball 70, instead of being a weight, is made so as to form a float, and is connected with the opposite end of the lever g, so as to close the valve when the water in the tank is at the desired height.

This valve may be used for all purposes for which valves are used by constructing the lever g as a hand-lever and placing the coiled spring it around the stem, so that one end of the coiled spring rests against one of the stops 1 l and the other against the lever, so that the torsion of the spring It will act in the same manner as the weight k, or a float, to shut the valve by partially rotating the valve-disk 0.

Figs. 4 and 5 clearly show the application of the spring to the valve, and also show the construction of this valve.

When the valve is used for a street-hydrant, or in a place where it is liable to freeze, a small outlet, 1), is placed into the lower part of the valve, and the channel 1 is out into the valve-disk 0, so that when the valve is closed the outlet 1) will be connected by the channel 0 with the discharge-opening q, and will drain the water from the valve, so as to prevent freezing.

hen the valve is open the drain will be closed by the partial rotation of the valvedisk, moving the channel 1" on one side, as is shown in Fig. 3.

This valve is simple in construction. The wear of the faces of the disk and valve-case will keep the same tight, and as the disk is rotated only slightly more than the width of the opening it is not liable to much wear. The valve is not liable to cut, as there is no thin edge, as is used in ordinary valves; and as the supply is only cut olf there is no water-hammer, such as is caused by the closing of springvalves, and by which the whole system of piping is subjected to excessive strain. All the parts are strong and durable, no leather or other perishable packing being; required, and the valve is not liable to get out of order.

Having thus described my invention, I claim as new and desire to secure by Letters Patent 1. Thecombination, with the valve-casing provided with a valve-seat having openings 1) I) formed therein, and a sleeve, 0, extending from the rear face of the valve-seat through the chamber in the valve-casing, of the rotary disk 0, provided with openings b I), and stem f, attached to said disk and supported in the sleeve 0, substantially as set forth.

2. The combination, with the valve-case a and the stops 1 I, of the disk 0, stein f, and lever g, constructed to open and close the valve, as described.

The combination, with the case a, provided with the stops l l, the outlet d, and the detachable case 6, having the inlet of the disk 0, Stem f, and lever g provided with a weight, float, or spring to hold the disk in the position when the valve is closed and return the disk to this position when released, as described.

4. The combination, with the rotary disk 0, provided with the port 'l, of the valve-seat, provided with the two channels 1) q, substantially as set forth.

In witness whereof I have hereunto set my hand and aflixed my seal.

JAMES P. HILLARD.

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