US968875A - Flush-valve. - Google Patents

Description

J. S. MORRISSBY.

- Patented Aug. 30, 1910.

J'OHN S. MORRISSEY, OF LACONIA, NEW HAMPSHIRE.

FLUSH-VALVE.

Specification of Letters Patent.

Application filed May 16, 1910.

Patented Aug. 30, 1910. Serial No. 561,683.

' T 0. all whom it may concern:

Be it known that I, JOHN S. MORRISSEY, a citizen of the United States, and resident of Laconia, county of Belknap, and State of New Hampshire, have invented an Improvement in Flush-Valves, of which the following description, in connection with the accompanying drawing, is a specification, like characters on the drawing representing like parts.

This invention relates to a flush valve for tanks wherein it is desired to discharge a predetermined amount of water or other liquid from the tank upon the operation of the valve.

While the invention is adapted for various kinds of tanks and for various purposes it is especially adapted for use in connect-ion with the low water closet tank.

The object is to provide a device simple in its construction and of such strength that it will not be injured when repairs are made to the tank or the other devices employed in connection therewith; to provide a valve which will seat surely and accurately under all conditions and thus prevent any leakage; to provide means for accurately determining the amount of water discharged; and to provide a self-contained structure readily removable from and attachable to the tank as awhole.

The nature of the invention will appear more fully from the accompanying description and drawings and will be particularly pointed out in the claims.

The drawings illustrate a preferred form of device embodying the invention and so much of an ordinary tank as necessary to illustrate its manner of use.

In the drawings, Figure 1 is a side elevation of the device and a portion of the tank with portions shown in cross section; Fig. 2 is a top plan view of the device without the tank and operating lever.

An ordinary form of tank is partially illustrated, the vertical wall being shown at 1 and the bottom at 2 with the usual exit pipe 3 opening from the bottom.

The device of the present invention is preferably self-contained in that all its parts are attachable and removable as a whole and this is the form which is chosen for illustration.

A pipe section 4 is adapted to be screwed into the exit pipe and clamped to the bottom of the tank by means of the flange 5 and the nut 6. This pipe section supports all the remaining parts of the device and thus the entire device is made attachable and removable as a whole. The pipe section 4 is provided with a valve seat 7 preferably conical in shape and adapted to cooperate with a correspondingly shaped valve 8 surfaced preferably with rubber and heavily weighted as indicated at 9.

A valve stem 10 projects upwardly from the valve 8 and is mounted to slide in vertically- alined guides 11 and 12. These guides are supported by a suitable upright which preferably takes the form of an overflow pipe 13 rigidly connected to the pipe section 4 and opening thereinto below the valve seat. The guides are vertically adjustable by means of the set screws 14 and 15. Near its upper end the valve stem is provided with a collar or projection 16 and at its upper end it is connected to any suitable operating device, such as the lever 17 A collar 18 is adjustably secured by the set screw near the upper end of the upright or overflow pipe 13. On this collar is fulcrumed at 20 a lever 21 and depending from the collar is a stop 22 for limiting the downward movement of the longer arm of the lever. This lever 21 is provided with a pivoted trip 23 projecting into the path of the projection 16 on the valve stem and adapted to yield and allow the passage of said projection in its upward movement, and then to swing beneath the projection and retain the valve in raised position, as indicated by the dotted lines in Fig. 1. The opposite or longer arm of the lever has adjustably secured thereto by the set screw 24 and rod 25 a receptacle 26 open, or presenting a filling opening at its top, and having a comparatively small drain opening 27 at its bottom. When in position with the valve seated the filling opening or top of the receptacle is slightly below the normal water level in the tank, which water level is maintained in any well known and usual manner.

The operation of the device will now be apparent. With the parts as shown in full lines in Fig. 1 the water level is slight-1y above the top of the receptacle 26 which is, accordingly, filled and submerged and the valve 8 is firmly seated. When it is desired to discharge water from the tank the lever 17 is operated, raising the valve to the position shown in dotted lines, the projection 16 passing the trip 23 and catching above the same. The immediate outflow of water through the exit 3 leaves the receptacle full of water and wholly or partially above the falling water level, thus counterbalancing the valve and retaining it raised. As the water runs out of the receptacle through the drain opening 27, the counterbalance is gradually destroyed and the valve finally drops to its seat, the tank refills and is ready for another operation. The vertical adjustments of the rod 25 and collar 18, and the size of the drain opening 27, enable the amount of water discharged to be predetermined with great accuracy.

Having fully described my invention what I claim as new and desire to secure by Letters Patent is:

1. A flush valve for tanks-comprising a pipe section adapted to connect with the exit of the tank and provided with a valve seat, an overflow pipe connected to said pipe section below said valve seat and extending upwardly therefrom, vertically-alined guides supported by said overflow pipe above said valve seat, a weighted valve provided with a stem sliding in said guides into and out of cooperation with said seat, a projection on the valve stem, a lever fulcrumed near the upper end of said overflow pipe, a trip at one end of said lever yielding to the said projection in its upward movement and passing beneath the same, a receptacle connected to the other end of said lever having a filling opening below the normal water level of the tank and having a drain opening at itsbottom.

2. A flush valve for tanks comprising a pipe section adapted to connect with the exit of the tank and provided with a valve seat, an upright connected to said pipe section, vertically-aimed guides supported by said upright above said valve seat, a weighted valve provided with a stem sliding in said guides into and out of cooperation with said seat, a projection on the valve stem, a lever fulcrumed near the upper end of said upright, a trip at one end of said lever yielding to the said projection in its upward movement and passing beneath the same, a receptacle connected to the other end of said lever having a filling opening below the normal water level of the tank and having a drain opening at its bottom.

In testimony whereof, I have signed my name to this specification, in the presence of two subscribing witnesses.

JOHN S. MORRISSEY. \Vitnesses MARTHA E. JOHNSON, HARRY C. CANNEY.

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