US1520914A - Float for float valves - Google Patents

Description

J. C. SPEARING FLOAT FOR FLOAT VALVES Original Filed May 15, 1922 s Sheets-Sheet Original Filed May 15, 1922 3 Sheets-Sheet 2 FLOAT FOR FLOAT VALVES Original Filed May 15, 1922 5 Sheets-Sheet 5 Patented Dec. 30, 1924.

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FLOAT 'ron FLOAT VALVES.

To all whom it may concern.

Be it known that I, JOHN C. SPEAKING, a citizen of the United States, residing at Cleveland, in the county of Cuyahoga and State of Ohio, have invented certain new and useful Improvements in Floats for Float Valves, of which the following is a specification.

This application is a division of my appllcation filed May 15, 1922, Serial Number 561,028, Patent No. 1,483,392, February 12th, 1924, and the present case relates to an improved float particularly adapted and intended for operating the valve of a flush tank such as disclosed in said application,

but capable of use in other relations if desired.

The object of the present construction is to provide an improved float having an opening in which water is admitted to weight the float and operate the same, so that the valve will always be operated when the water falls below a certain level. A further object of the invention is to provide a dash pot to retard the action of the float.

In the accompanying drawings, Fig. 1 is a side elevation, partly in section, of a flush tank with the float valve applied thereto. Fig. 2 is a similar view at a right angle to Fig. 1. Fig. 3 is a sectional view showing the position of the float when the valve is closed. Fig. 4 is a similar view showing the parts with the valve open. I

In the drawings 1 indicates a flush tank, 2 the outlet thereof which connects to the bowl and 3' the flush ball valve. The overflow pipe is indicated at 4 and the water supply pipe at 5.

Mounted on the upper end of the water supply pipe is a valve casing 6 which has the outlet pipe 7 to the tank connected thereto and extending down to near the bottom of the tank 1.. The valve mechanism within the valve casing 6 is operated by raising or lowering of a pivoted arm 8, said arm 8 being raised or lowered by a rod 9 which has a float 10 adjustably secured thereto. The rod 9 extends through a tube 11 within the float 10 and is adjustably connected thereto by a set screw 12. The lower end of the rod 9 has a piston 13 thereon which works in a dash pot 14; which is supported on one end of a rod 15, the other end of said rod 15 being connected to the pipe 7.

The float 10 is constructed of sheet metal this application fi1edApri1 2,

having its upper and lower ends closed and having openings 16 cut through the sides.

W henthetank is first filled,-water will flow 1 through said openings 16 into the float l0 and'will afterwards remain therein up to.

this level irrespective of the level of the water in the tank. When the tank fills the water will rise around the float 10 and will will be seen by this construction I provide i a weighted float which will always open the valve mechanism when the water falls below a certain level.

The valve mechanism operated by'the arm 8 is fully described in my said application,

and need not be particularly described here, it being suflicient to state that the arm 8is pivoted at 56 and has a cam 60 which engages in a notch in the valve stem 58 which controls the operation ofv the valve 62, and the opening to the refill pipe 64;.

The operation is as follows: 7

When the flush'ball 3 is raised the Water in the tank 1 escapes through theflush pipe 2 into the bowl. This will cause the float 10 to lower and in turn will lower the arm 8 which will move the valve 62 from its seat 54:,- which will operate the automatic valve'as described in'said application to refill the tank. When the water in the tank l-..s reached the proper level the float '10 will lift to operate the arm 8 and close the valve 62, the float being lifted because of the air trapped in the upper part of the float. The float, owing to the water therein, will be of sufficient weight to operate the valve 62 positively when the, tank is drained, and

when the water in the tank rises above the holes 16, the air in the top part ofthe float will be trappedv and the float will lift. The dash pot 14 acts to prevent sudden action or pounding of the float.

I claim:

1. The combination with a flush tank and into the float, and an air chamber above said opening, whereby the weight of the Water llO in said fioatwill operate to open said valve when the water is lowered in the tank and the buoyancy of the air in the air chamber will close said valve when the level of the water is raised.

2. The combination with a flush tank and supply pipe thereto, of a valve controlling the flow of liquid thru the supply pipe, and a float in the tank, said float comprising a V1 hollow body havingopenings adapted to receive water in the side thereof and having a direct operating connection to said valve whereby the weight of the water retained in the float will operate to positively open the valve when the water is lowered, and an air chamber above said openings adapted to trap air so that the buoyancy of the air will operate to close the valve when the water in the tank rises above said openings.

In testimony whereof, I affix my signa- 2n ture inpresence of two witnesses.

JOHN G. SPEAKING.

Witnesses: I 7

Joint A. BOMMHARDT, G. MOSINBERG.

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