US2175973A

US2175973A - Flush tank valve

Info

Publication number: US2175973A
Application number: US195879A
Authority: US
Inventors: Frank S Reed
Original assignee: Individual
Current assignee: Individual
Priority date: 1938-03-14
Filing date: 1938-03-14
Publication date: 1939-10-10
Anticipated expiration: 1956-10-10

Description

F. s. REED FLUSH TANK VALVE Filed March 14, 1938 ra l/515E? Oct. 10, 1939.

WITNESS Patented Oct. 10, 1939 UNITED STATES PATENT OFFICE FLUSH TANK VALVE Frank S. Reed, Cincinnati, Ohio Application March 14, 1938, Serial No. 195,879

3 Claims.

This invention relates to flush tank valves and more particularly to means for the mounting of a valve of said character whereby the normal action of said valve will not in any way be interfered with and will assure correct engagement of the valve with the seat to prevent water leaking past the valve and the seat and also will act to prevent the valve from moving out of alignment with said seat under the influence of the incoming water of the flush tank during the disengagement of the valve from the seat.

With these and other objects in view, this invention consists in certain novel features of construction, combination and arrangement of parts to be hereinafter more fully described and claimed.

For a complete understanding of my invention, reference is to be had to the following description and accompanying drawing, in which Figure l is a fragmentary vertical sectional view showing a flush tank equipped with a conventional type of valve seat and valve wherein the movement of the latter is guided by the present invention.

Figure 2 is a vertical sectional view illustrating a guide stem of the valve and the fitting for securing the guide stem to the valve and also for connecting the valve operating stem onto the valve. I

Figure 3 is a diagrammatical view showing the guide positioned in the outlet neck of the flush tank to slidably receive the guide stem of the valve.

Figure 4 is a side elevation, partly in section, illustrating a modified form of my invention.

Referring in detail to the drawing, the numeral l indicates a flush tank, 2 an outlet neck including a valve seat 3 engaged by a valve 4 of the bulb type. The overflow pipe of the flush tank is indicated by the character 5 and connects with the outlet neck 2 below the seat 3 and carries the usual guide bracket 6 for the valve stem 1, the latter being connected in the usual way to the operating device 8 of the flush tank. The construction described is conventional and the valve 4 has embedded in its top wall an internally screw threaded fitting 9 in which threads the lower end of the stem 1. A conical shaped flange I 0 is formed on the fitting 9 and is embedded in the top wall of the valve 4 for aiding in anchoring the fitting in the valve and to act as a reinforcement for the top wall of the valve to prevent sagging thereof or, in other words, becoming out of shape. The outer walls of the fitting are serrated, as shown at l I, so that when the fitting is molded into the material of the valve said material will readily adhere to the fitting. A guide stem I2 is threaded into the fitting and passes through the bottom wall of the valve by way of the opening I3 provided in valves of this kind. The guide stem projects a considerable distance below the Valve and when said valve is in engagement with the seat 3 the guide stem extends well into the outlet pipe l4 connected to the outlet neck 2.

A split expansible ring l5 has formed on one end an arm l6 terminating in an eye I! located centrally of the split ring. The split ring is positioned within the outlet neck 2 and frictionally grips the wall of said neck. The guide stem l2 passes through the eye I! so as to guide the movement of the valve towards and from the seat maintaining the valve always in alignment with said seat and prevents said valve from being moved out of alignment with the seat by incoming water in the flush tank when said valve is disengaged from the seat.

Referring to my modified form of the invention, a fitting I8 is embedded in the top wall of the valve and has threaded thereto the guide stem l2 and is provided with a ball l9 received in a socket 20 threaded on the stem 1. The ball and socket joint between the stem 1 and the valve permits more freedom of movement of the guide stem during the seating and unseating of the valve and by using this arangement the stem 1 is less apt to bind in the bracket 6.

What is claimed is:

1. In combination with a flush tank valve, a fitting embedded in said valve and having a screw threaded bore, a guide stem threaded in the bore and extending outwardly of the valve, means for connecting said fitting to a valve operating stem, a split expansible ring removably positioned and frictionally retained in an outlet neck of a flush tank and having one end bent to form an arm terminating in an eye located centrally of said split ring to slidably receive the guide stem.

2. In combination with a flush tank valve, a fitting embedded in said valve and having a screw threaded bore, a guide stem threaded in the bore and extending outwardly of the valve, means for connecting said fitting to a valve operating stem, 2. split expansible ring removably positioned and frictionally retained in an outlet neck of a flush tank and having one end bent to form an arm terminating in an eye located centrally of said split ring to slidably receive the guide stem, and a conical shaped flange formed on said fitting and embedded in walls of said valve to reinforce said walls and to aid in anchoring the fitting in the valve.

3. In combination with a flushing tank valve, a split expansible ring adapted to be removably positioned and frictionally retained in the outlet neck of a flush tank and having one end bent to form an arm terminating in an eye located cetrally of the said split ring to slidably receive a guide stem of the said flushing tank valve.

FRANK S. REED.