US1503655A

US1503655A - Flush valve

Info

Publication number: US1503655A
Application number: US561942A
Authority: US
Inventors: Landro Dominic
Original assignee: Individual
Current assignee: Individual
Priority date: 1922-05-18
Filing date: 1922-05-18
Publication date: 1924-08-05
Anticipated expiration: 1941-08-05

Description

D. LANDRO FLUSH VALVE Filed May 18 1922 j WM Zandro Patented Aug. 5 1924 UNITED STATES DOMINIC LANDRO, 0F HAZLETON, PENNSYLVANIA.

FLUSH VALVE.

Application filed May 18, 1922. Serial No. 561,942.

To all whom it may concern:

Be it known that I, DOMINIG LANDRO, a citizen of the United States, residing at Hazleton, in the county of Luzerne and State of Pennsylvania, have invented certain new and useful Improvements in Flush Valves, of which the following is a specification.

This invention relates to the outlet valves of flushing tanks and has for its object the provision of an inexpensive construction whereby proper seating of the valve will be effected and the life of the valve prolonged. Valves of the class to which my invention relates are now almost universally in the form of a hollow rubber ball which is carried by a stem guided in a suitable bracket secured upon the overflow pipe of the tank. After a valve has been in use for a prolonged period. it is apt to become water-logged and swell so that it touches the overflow pipe and is, therefore, prevented from properly seating to close the outlet pipe, the result being that frequently the water will run for a long period with an attendant noise which is irritating to the occupants of the house. My invention seeks primarily to provide means whereby this imperfect seating of the valve and the consequent frequent attention there to which is necessary will be overcome. The invention is illustrated in the accompany ing drawings and will be hereinafter fully set forth.

In the drawings Figure l'is a side elevation of a flush valve seated to close the outlet pipe of the tank and showing it in proper relation to the over- Fig. 2 is an enlarged section of the valve.

In the drawings, the reference numeral 1 indicates the usual outlet or flushing pipe having a seat 2 at its upper end to receive the valve 3. Communicating with the flush pipe below the seat 2 is an overflow pipe 4 which rises within the tank to a point near the top of the same and is of a we1l-known construction. Secured to the overflow pipe and extending laterally therefrom is a guide 5 in which the stem 6 of the flush valve plays. The valve 3 is a hollow rubber ball and may be provided with an opening 7 in its lower side as is now the general practice, and it is also provided at its top with a depending internally threaded socket or thimble 8. In carrying out my invention, I provide a metallic cap 9 which encloses the upper portion of the valve. As shown in the drawings, this cap 9 is of conical form, it being somewhat truncated at its upper end, as shown, to fit closely over the upper end of the socket and the ball, and being formed with an opening therethrough to accommodate the stem 6. A. look nut 11 is fitted upon the threads 10 of the stem immediately over the truncated upper end of the cap so as to firmly secure the cap in place. The cap is provided with a rim 12 at its lower end and this rim converges slightly toward its lower edge whereby it will conform to the lower hemisphere of the valve and will fit closely to the same. teriorly upon the lower edge of the cap so as to prevent cutting of the valve and reinforce the rim so as to counteract any tendency of the same to'buckle.

The cap should be of such dimensions that it will enclose the upper half of the valve,

and the rim l2 depends slightly below the horizontal diameter of the valve and thereby tends to hold the valve in a partly compressed state and will neutralize any tendency of the valve to expand as it may become water-logged. It will be readily noted by referring to Fig. 1 that the rim 12 and bead or rib 13 will be the parts which impinge upon the overflow pipe should the stem 6 fail to maintain the valve in a rectilinearpath during its operation, but inasmuch as the metal does not have the'same adhesive qualities that rubber possesses, there will not be that tendency of the valve to stick and improperly seat which is now noticeable in the use of the ordinary rubber valve. My device is exceedingly simple and inexpensive and may be readily applied to any ball valves now in use.

Having thus described the invention, what is claimed as new is:

1. A flush valve comprising a normally spherical elastic ball, a metallic cap of conical form bearing against and compressing the upper portion of the ball, and means for drawing the upper portion of the ball within the cap to cause it to assume the conical form of the cap, said cap having its lower edge extended slightly below the horizontal diameter of the ball and conforming to the spherical wall thereof to retain the ball within the cap.

2. A flush valve comprising a normally spherical elastic ball, a one-piece metallic cap of conical form bearing against and compressing the upper half of the ball, and

A rib or bead 13 is formed exiii means for drawing the upper half of the ball within the cap to cause it to assume the conical form of the cap, said cap having its lower edge extended slightly below the horizontal diameter of the ball and provided with a terminal reinforcing bead the extended lower edge of the cap at said reinforcing bead conforming to the spherical Wall of the ball whereby to retain the ball within the cap.

3. A flush valve comprising normally spherical elastic ball, a one-piece metallic cap of conical t'orin bearing against and compressing the upper half of the ball to cause it to assume the conical form of the cap, the central portion of the cap being flat and provided with an opening, a threaded socket member arranged Within the cap and bearing againstthe upper. portion of the ball, a stem extending through the opening in the cap and engaging the threads in the socket, a nut threaded 0n the stem and bearing against the cap for clamping the cap and the upper portion of the ball in contact with each other, the lower edge of the cap being extended slightly below the horizontal diameter of the ball and provided with a terminal reinforcing head, said le-Wer edge of the cap conforming to the spherical wall of the lower half of the ball whereby to retain the ball within the cap.

In testimony whereof I afiix my signature.

DOMINIO LANDno. 11. 8.

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