US1420452A - Flush-tank valve - Google Patents

Description

F. L. SHOPPE, E. G. HEDGES, AND W. W. HEROY.

FLUSH TANK VALVE.

APPLICATION FILED IMAYM, 1921.

' Fig Patented June 20,1922.

UNITED) ATENT OFFICE...

FRANK I. SHOPPE, OF PASSAIC, EDWARD G; HEDGES, OF NEWARK, AND WALTER W.

' HEROY, OF BLOOMFIELD, NEW JERSEY.

- FLUSH-TANK VALVE.

Specification of Letters Patent. Patented June 20, 1922 Application filed May 14, 1921. Serial No, 469,528 e Bloomfield, county of Essex, and State of New Jersey, all citizens of the United States, have invented certain new and useful Im- V V provements in Flush-Tank Valves, fully described and represented in the following specification and the accompanying drawings, forming a part of the same.

The present invention relates to a flushvalve of the class that is shown and de-.

scribed in Patent No. 1,237,109 issued August 14, 1917 to Frank L. Shoppe for improvement in flush-tank valves.

In the flush-valve of said patent, an elastic rubber seat was projected upward from the tank-outlet and provided with an annular lip to embrace the bottom-end of a floatvalve when resting upon the same.

The flexibility of such lip enabled it to snugly embrace the lower end of the valve and thus secure a watertight joint under the slight pressure that the weight of a float valve could exert when not immersed in water.

In the construction referred to, a floatvalve settled downward in the tank at the same rate that the water was discharged, and as it approached the valve-seat it more or less obstructed the outlet for the water remaining in the tank. It is desirable to leave as little water in the tank as possible, and the projection of the rubber valve-seat above the outlet-pipe limits the descent of the valve to a considerable degree.

By the present invention, the water flows to the outlet-pipe at a lower level and thus discharges the tank more fully.

This is efiected by providing means for holding the fioat-valve suspended above the valve-seat during the discharge of the water in the tank to the level of the seat, thus leaving the passage for the escape of the water unobstructed, while permitting the, valve to immediately descend when the water has fallen to the predetermined point, and thus closing the valve-outlet in readiness for the refilling of the tank.

The means to prevent the float-valve from descending at the same rate as the water in the tank, consists of an inverted water-ohamher sustained over the valve-seat and en- I closing the float-valve, and operating to sus tain the float-valve by the maintaining of the water in the said chamber until the tank is nearly empty.

Such operation of the water-chamber is effected by means of a water-inlet at its bottom and an air-passage at the top, the valve being arranged to close the air-passage when the water raises the valve sufliciently to press againstit.

, The valve exerts such pressure from itsbuoyancy, and operates to prevent the entrance of air through the air-passage, and thus retains the water inthe water-chamber until the water in the tank has fallen to the level of the water-inlet at the bottom of the chamber. When that occurs, air enters the chamber at the bottom, which displaces the water in the chamber and allows the same to escape by the outlet, while such escape lowers the valve into contact with the outlet seat.

Theinvention will beunderstood by reference to the annexed drawing, in which Fig. 1 is a section of a flush-tank with the waterchamber enclosing the float-valve; Fig 2 is a central vertical section of the chamber attached to the clamp-ring holding the rubber valve-seat in place; Fig. 3 is a plan of the outlet and valve-seat; and Fig. 4 shows the lower end of the water-chamber.

A designates the flush-tank in Fig. 1, and B the outlet to the closet bowl, B the overflowv pipe, and B the port connecting the outlet B with such pipe. The outlet is controlled by the float-valve C. This valve is shown tapering toward the bottom to readily enter the rubber valve-seat D which is provided with the annular lip D, as shown in the said Patent No. 1,237,109.

Such float-valves may be made of any suitable material and are floated by the air therein, and the tapering body forms a tight joint with the rubber-seat. D is the supply-pipe provided upon the top with a supply-valve E controlled by the valve-lever F.

An inverted water-chamber E is attached to the ring a which, by the screws d upon the outlet-seat, clamps the rubber facing to such seat. The water-chamber thus encloses the valve and is provided with Water-inlet b at the bottom and air-passage c at the top.

When the valve is raised by the handle h and lifter-rod f, it crowds against the airpassage and wholly excludes the air from the interior of the chamber.

It will be observed that the valve is thus doubleended, and closes an aperture at either extreme of its movement upward or downward. Then the valve rises it closes the air-passage, and when it falls it closes the outlet.

The upper end of the float-valve is shown provided with a conical stopper e which enters the passage 0 when the valve is raised, and thus secures an eflectual closing of such passage. When this occurs, the water-chamseat to flush thebasin. The rod f is shown extended downwardly through the valveseat into a guide 9 which is provided in the outlet B.

lVith this construction, the float-valve is lifted in the usual way by the rod and crank to flush the basin when required, the floatvalve when it is lifted clear from the seat rising by its bouyancy into the upper part of the water-chamber, and pressing the stopper 6 into the passage 0.

This prevents the escape of the watercharge from the water-chamber and holds the float-valve by its buoyancy in the top of the chamber until the water in the tank descends to the level of the water-inlet Z). Y The entrance of air to the water-inlet thus allows the water in the chamber to escape to the outlet '5, and the float-valve to finally seat itself upon the rubber seat D.

The water-chamber with air-passage in the top closed by the float-valve, when the tank is filled, entirely changes the operation of the float-valve without adding any mova water-chamber enclosing the float-valve.

and having a water-inlet near the said seat and an air-passagein the top, the float-valve being provided with a stopper to close the said passage and with a rod extended through the passage to lift the valve for flushing the tank, the stopper excluding the air from within the chamber until the charge 7 of the tank is lowered to the said waterinlet. I

2. The combination, with a flush-tank-outlet having clamping ears at the sides, of a clamping-mug w th corresponding lugs, a

flexible valve-seat fitted between the said outlet and the clamping-ring with bolts for.

pressing the parts together, and a water chamber extended upward from the clamping-ring and provided with a water-inlet near the bottom and air-passage in the top, and a float-valve adapted to fit the flexible valve-seat and having at its upper end a stopper to close the air-passage during the lowering of the charge in the tank.

3. The combination, with a flush-tarik-outlet having clamping ears at the sides, of a clamping-ring with corresponding lugs, a

flexible valve-seat fitted between the said outlet and the clamping-ring, with bolts for pressing the parts together, a water-chamber extended upward from the clamping-ring and provided with a water-inlet near the bottom and an air-passage in the top, a floatvalve adapted to fit in the flexible outletseat and having at its upper end a conical stopper to close the air-passage, with a rod secured in the center of the stopper for lifting the float-valve when upon the outletseat.

In testimony whereof we have hereunto set our hands.

FRANK L. SHOPPE. EDWARD Gr. HEDGES. WALTER- VV. HEROY.

Images