US1119291A - Float-valve. - Google Patents

Description

E. H. LAWRENCE.

FLOAT VALVE.

APPLICATION FILED MAR. 26, 1912.

Patented Dec. 1, 1914,

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EDWARD H. LAWRENCE, OF CAMERON, WEST VIRGINIA.

FLOAT-VALVE.

Application filed March 26, 1912.

To all whom it may concern Be it known that I, EDWARD H. LAWRENCE, a citizen of the United States, residing at Cameron, county of Marshall, in the State of Nest Virginia, have invented certain new and useful. Improvements in Float-Valves; and I do hereby declare the following to be a full, clear, and exact description of the invention, such as will enable others skilled in the art to which it appertains to make and use the same.

This invention relates to water supply mechanism for flush tanks and the like, and its object is to provide such a mechanism of novel construction whose parts will be so positioned that the valve can be easily in spected and removed without reaching into the box.

Broadly the invention consists in placing the valve and its casing exterior to the flushing box, and so mounting the valve in the casing that it can be readily removed when a portion of the casing is removed.

Heretofore, in order to disassemble the supply valve, it has been necessary to reach into the flushing box during some stage of the operation to remove certain parts, before access to the valve proper could be obtained. In most cases, the valve itself had. to be withdrawn through the box. Obviously, this is a disadvantageous feature.

According to the present invention, the valve can be readily inspected at any time, by simply removing a cap on one portion of the casing, the valve can then be removed without interfering in any way with the re. maining parts.

The invention is depicted in the accompanying drawing, but various modifications can be made without departing from the spirit or scope of the invention.

In the drawing :-Figure 1 is a broken sectional View of a water supply mechanism for a flush tank constructed in accordance with the invention. Fig. 2 is a plan view of the valve casing with a portion of the casing broken away to show the valve lever and the manner of mounting the same.

In these views, like reference characters refer to corresponding parts.

The flush tank may be of any desired type as the invention is applicable in all cases, no matter what the exact construction of the tank might be. In communication with the tank 1, is a cylindrical casing 2, preferably horizontally disposed. The communication Specification of Letters Patent.

Patented Dec. 1, 1914.

Serial No. 686,417.

is established by means of the connecting portion 3, which is preferably a vertically dlsposed cylindrical extension integral with the casing proper and provided with an opening 3. This extension which is exteriorly threaded protrudes into the interior of the flushing tank and is held rigid with respect to said tank by means of a thumb nut 4:, which is screwed down upon a washer interposed between the nut and the flush tank. By this means the entire casing is clamped rigidly in position. Sliding in the vertically disposed cylindrical portion 3 is a piston 5 having a downwardly extending arm 6, for the purpose hereinafter set forth. The piston is operated by any suitable means, such as the usual ball float secured to the extremity of a rod 7. The upper portion of the vertically disposed cylindrical portion 3 preferably carries a sleeve 8, to whichis secured an upwardly inclined fulcrum extension 9, and to this extension the float mechanism is pivoted. Instead of pivoting the rod 7 directly to this fulcrum, a lever 10 is preferably provided in which the rod 7 is socketedd This lever is )ivoted at 11 to the fulcrum and the portion etween the pivot 11 and the piston 5 acts as a cam which engages in a suitable recess 12 in the piston.

The casing 2 contains the valve mechanism comprising a valve 12 and a seat 13. The valve 12 is preferably carried by a valve lever let journaled in the casing in any manner which will render the lever readily removable. Preferably, it is journaled as follows :-The lever 1 1 carries at one end a pintle 15, which rests in bearing blocks 16 cast integral with the casing. The blocks are provided with recesses or grooves 17 to receive the pintle which is held in such recesses by a cap 18 screwed upon the end of the casing and engaging the extremity of the valve lever as at 19. This construction is advantageous, due to its simplicity and to the fact that the lever can be easily removed from the casing when the cap 18 is removed. The lever could be mounted in many ways, however, so that the cap 18 would not be depended upon to hold it in its bearings. The extremity of the lever opposite its journaled end is engaged by the piston extension 6. For this purpose, the said extension is preferably provided with a hook portion 20, which engages the lever in such a manner that it can be readily withdrawn when desired, as clearly shown in the drawing.

' valve lever.

The valve seat 13 is in the present case formed on the upper portion of an annular member 21, which can be easily screwed into the casing. The supply pipe 22 is then secured to this member by a cap 23 with the interposition of a suitable washer 24.

It is apparent from the description that when the tank is sufficiently exhausted of its contents, the ball float will assume a low position, thereby swinging lever 10 around its pivoted connection 11 to raise the piston 5. This action uncovers the opening 3 and lifts the valve lever is, thereby opening the supply valve to admit water into the tank. When sufiicient water has been supplied to the tank, the ball floating upon the surface of the water will depress the piston 5 and close the valve, as will be readily understood.

When it is desired to inspect the valve or to remove it from its casing, it is only neces sary to unscrew the cap 18 and withdraw the The valve seat can then be repaired or cleaned as the case might be. The replacing of the lever is as simple as the re moving of it. It is seen therefore that it is not necessary to reach into the tank, or to disarrange any of the other parts.

What I claim is 1. In a water supply mechanism for a flush tank, a horizontally disposed valve casing adapted to be located below the tank, a removable end portion on said casing, a valve lever carrying a valve pivotally mounted in the casing, said valve lever adapted to be freely dismounted when the end portion of the casing is removed.

2. In a water supply mechanism, a flush tank, a horizontally disposed valve casing located below and exterior to said tank and having a removable end portion, a valve lever carrying a valve and pivotally mounted in the casing, means in said tank to operate said valve, said valve lever being freely dismountable when the end portion of the casing is removed.

3. In a water supply mechanism for a flush tank, a horizontally disposed valve casing having a removable portion, a valve lever carrying a valve pivotally mounted at one end in said casing, means to actuate the other end of said lever, a valve seat to cooperate with said valve, the lever being freely removable when said portion of the casing is removed.

4. In a water supply mechanism for a flush tank, a horizontally disposed valve casing, a pintle removably journaled in one end of said casing, a valve lever carried by Said pintle, a valve carried by said lever, a valve seat to cooperate with said valve, and means comprising a vertically guided piston to actuate said lever.

5. In a water supply mechanism, a flush tank, a horizontally disposed valve casing located externally to said tank, and having a removable end portion, a valve seat in said casing, a valve lever j ournaled in the casing adjacent the removable portion thereof and carrying a valve adapted to cooperate with said seat, a vertically disposed portion on said casing extending into the tank, a piston guided in said portion and having a connection with said valve lever, and a floating device in said tank adapted to actuate said piston.

In testimony whereof I am my signature, in presence of two witnesses.

EDWARD H. LAIVRENCE.

Witnesses:

R. E. CRANE, G. E. CONAWAY.

Copies of this patent may be obtained for five cents each, by addressing the Commissioner of Patents.

Washington, D. C.

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