US260952A

US260952A - Valve

Info

Publication number: US260952A
Authority: US
Publication date: 1882-07-11
Anticipated expiration: 1899-07-11

Description

(No Model.)

J. DEMAREST.

FLUSHING VALVE.

N0.'260,952. PatentedJuly 11, 1882.

lll/111111111 umzug Mmmm-mman UNITED STATES PATENT OFFICE.

JOHN DEMAREST, OF NEW YORK, N. Y.

FLu'sHlNG-VALVE.

SPECIFICATION forming part f Letters Patent NO. 260,952, dated July v11, 1882.

l Application led February 23, 1882. (No model.)

To all whom it may concern Be it known that I, JOHN DEMAREST, of the city and State of New York, have invented an Improvement in Flushing-Valves, of which the following is a specification. Y

This invention is an improvement upon the device for which Letters Patent No. 249,696

were granted November 15, 1881. In this patent the water is supplied into a cistern and there is a valve and a iloat which acts through a ratchet to hold up the valve after said valve has been lifted and to prevent its descent until the water runs out and allows the float to drop and relieve the valve from its suspending device. This,however, is complicated and expensive to construct, and the valve cannot be held open by the pull in case there is an insuicient amount of water in the cistern. I combine with thevalve a guide through which the stem passes, a float, anda finger which acts to hold the valve up at any place to which it may be lifted; but so soon as the water falls from below the float and allows that to descend the finger ceases to hold the valve up, and it drops by gravity and closes the escape-openin g to the closet. A

In the drawings, Figure 1 is a vertical section of the cistern and valve, and Fig. 2 is a plan of the same. A

The cistern a is of suitable size and shape, and is provided with a supply-pipe, b, from a head ot' water to which a ball-valve is axed so as to refill such cistern with water whenever the same has been emptied. It is usual to furnish one small cistern to each watencloset, and where there are several water-closets on the same floor to use one general supply-cistern with ball cock or valve to the water-pipe and to lead a pipe from this supply-cistern to the closet-cisterns and connect each closetcis tern with the same by a rather small pipe, so that said closet-cistern, after bein g emptied suddenly, as hereinafter described, will be lled again gradually from such supply-cistern.

The discharge-pipe dfrom the bottom of the cistern leads to the watercloset,and atthe upper end of this pipe, and within the cistern, there is a tapering valve-seat, e.

The overow-pipe f rises above the valveseat e, and it has a valve at t to close upon such seat. This overflow-pipe is of a size to discharge into the closet any surplus water from the cistern should such run into the same, the open upper end of the overflow-pipe being considerably below the top edge of the eistern a. I make the valve t of a ring of round rubber, shrunk on the lower part of the overflowtube f below a supporting-rim, l, and above a slight projectin grim, that prevents the rubber rin g bein gdrawn oli' accidentally. If the overflow-pipeis not needed, the valve and 4stem may be of solid metal and receive the said rubber ring. The overflow-pipe f or valve-stem is guided by a stationary ring, m, through which it is passed, the same being supported by the standards e from the sides of the valve-seat, and there is a forked lever, n, pivoted at o, which passesbeneath the flange at the upper end of the overflow pipe or stem, and theother end of this lever is actuated by a connection, s, to the closet-pull or other device, so that when the valve is raised the water runs out freely and rapidly to the water-closet. Valves acted upon by the closet-pulls have been used .but if the pull is raised and then liberated suddenly the valve is not held upa sufficienttime to allow the necessary flushing of the closet.

To prevent the valve falling, I make use of the oat r and an arm that is pivoted at u to the ring m, and there is a finger at the inner end of the arm, that presses upon the valvestem or overflow-pipe f, to hold the valve up when raised, but not to interfere with thelit'ting of the valve by the lever n. It is to be understood that the iioat, being in the water within the cistern, will continue to act upon the linger and hold up the valve until the water falls below the float, so that the same descends and relieves the pressure upon the n ger and allows the valve to drop. The surface of the valve-stem may be smooth, in which case the valve will be held up by friction; or the stem may be grooved, to receive the end of the linger, similar to a ratchet and pawl. The overflow-pipe becomes the stem of the valve, and, so far as the action of the vfloat and n ger is concerned, the stem may be either solid or`tubular. The tubular stem, however, is preferable, because, in addition to its office as an overlow-pipe,it becomes an air-inlet pipe to allow air to pass into the discharge-pipe leading to the closet, so that there will be no concussion IOC) or ram action on the valve as it closes, and the column of water can continue to descend and pass entirely into the closet as the air cn ters through the tubular valve-stem into the discharge-pipee I claim as my invention- 1. The combination, with the Water-closet cstern and valve, of a iioai; and a, finger acting upon the valve-stem and mechanism for 1o raising the Valve, substantially as set forth.

2. The combination, wit-h, the water-closet cistern, ot' an overiow-pipc and valve, a seat for the valve, a guide for the oVeroW-tube, a float and arm pivoted to the guide, anda nger actin g against the overoW-pipe, substan- 15 tially as set forth.

Signed by me this 14th day of February7 A.

JOHN DEMAREST. Witnesses:

GEO. T. PINCKNEY, WILLIAM G. Mo'rT.

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