US1655729A - Flush valve - Google Patents

Description

Jan. w, 192s. l 1,655,729

W. L. JONES FLUSH VALVE Filed Feb.10, 1927 17 vIIIII f6 30ab linde/@73 Patented Jan. 10, 1928.

UNITED STATES WILLIAM L. JONES, OF LOS ANGELES, CALIFORNIA.

` FLUSH VALVE. f

Application filed February 10, 1927. Serial No. 167,191.

My invention relates to a Hush valve of the general type disclosed in Letters Patent No. 1,580,494, issued to me April 13, 1926, and the principal objects of my present invention are to generally improve upon and simplify the construction of the valve disclosed in my patent aforesaid, as well as other similar forms of flushing valves and to provide a valve that combines simplicity of construction with eliciency of operation; to provide a valve structure wherein the operating parts are readily accessible in order to facilitate inspection, adjustments and repairs; and further, to provide a flushing valve that is practically noiseless in operation and which automatically controls itself during its gradual closing movement.

With the foregoing and other objects in view, my invention consists in certain novel features of construction and arrangement of parts that will hereinafter be more fully described and claimed and illustrated in the accompanying drawing, in which- Fig. 1 is a vertical section taken on a central plane through a iushing valve of my improved construction.

Fig. 2 is a sectional view similar to Fig. 1 and showing the valve in open position.

Fig. 3 is a detail section of a screw that is used in my improved flushing valve.

Referring by numerals to the accompanying drawing, which illustrates a practical embodiment of my invention, 10 designates a substantially cylindrical shell or housing, in the lower portion of which is formed a partition 11 that divides the space within the shell or housing into an upper piston chamber 12 and a lower valve chamber 13. Formed integral with thehousing 10 and leading from thevalve chamber 12, is a tubular extension 14 to which is connected a water supply pipe 15 that leads from a suitable source oflwater supply, preferably the city mains.

The upper end of the housing 10 is closed by a removable cap 16, from the center of which depends a lug 17, which functions as a stop to limit the upward movement ofthe piston that operates within chamber 12. Formed in the wall of housing 10, is a vertically arranged by-pass duct 18, the upper end of which communicates with the upper end of the chamber 12 and the lower end of said duet communicates with the lower portion, of said chamber l2. A screw 19 is seated in the wall surrounding duct 18 and which screw may be adjusted to control the volume How of water through the by-pass duct 18.

The center of partition l1 is provided with a stuffing box 20 through which is arranged for sliding movement a rod 21 and carried by the upper end of said rod, is a piston 22 that includes a cup washer or packing member 23 of leather, rubberized fabric, or the like, and the edge of which washer or packing member extends downwardly and normally bears against the inner face of the wall surrounding the4 piston chamber 12.

Arranged on rod 21 beneath the piston, is a disk 24 that is adapted to be engaged by the periphery of an eccentric 25, which latter is carried by the inner end of a shaft 26.-

This shaft is journaled in a suitably packed bearing in the wall of housing 10 and mounted on its outer end is an operating handle 27.

Interposed between piston 22 and cap 16, is an expansive coil spring 28 that normally exerts downward pressure on said piston.

Screw-seated in the lower end of cylinder 10 is a short collar 29 that encircles the end of the flushing water outlet pipe 30 that leads to the bowl or sink and arranged between the flanged upper end of said pipe 30 and the bottom wall of chamber 13, is a gasket or packing washer 30a, a metal ring 30b and on top' of the latter a ring 31 of leather, rubber composition, or the like, and which functions asa seat fora disk valve 32 of metal. This valve is mountedy for sliding movement on the lower enlarged portion of a screw 33, the upper reduced portion 34, of which screw is threaded and seated in the lower end of piston 21. Interposed between the larger lower portion of the body of the screw and the lower end of piston rod 21, isa disk 35, against .which valve 32 bears when the same is at the upper end of its travel on the screw.

Formed in the lower portion of the body of screw 33, is an axially disposed duct 36 and leading from the upper end thereof outwardly tothe surface of the body of said screw, are horizontally disposed ports 37.

When my .improved flush valve is installed for use, piston valve 12 is filled with water or other liquid and as pipe 15 is connected to a suitable source of water supply, chamber 13 will be filled with water and the pressure thereof will be exerted on valve 32 to hold the same upon the seat formed by the ring 31.

To open the valve and effect the flushing operation, handle 27 is engaged and swung upward in either direction, thereby rocking shaft 26 and shifting the lobe or high portion of lthe eccentric upwardly against.

' upward movement of said piston and parts associated therewith is arrested and the de pending portion of the cup washer will move outward into engagement with the inner surface of the wall of housing 10.

limmediately following the initial upward travel of rod 21, the outer ends of the ports 37 in screw 33 will. pass above the upper surface of valve 32 which is retained on its seat 31 by water pressure within chamber 13 and as the outer ends ont these ports are uncovered, water will flow through said vports and through duct 36 to the outlet, thereby-relieving the relatively high pressure in chamber 13 in advance of the opening of valve 32 and consequently eliminating pounding which would result if the main valve 32 was opened directly against the high pressure. As the rod 21 continues its upward movement, the head et screw 33 will engage valve 32 and carry the same. upward from its set 3l; thereby permitting a full flow of water under pressure to pass through the flushing valve from the source of supply to the pipe 30 that leads to the bowl with which the valve is associated (see Fig. 2).

After being opened'as just described, the valve will start to slowly close under the pressure exerted by spring 28 and the down ward movement of the piston will be controlled by the flow of water from the space beneath said ypiston through the by-pass 18l to the space above said piston and the'iow of water through which by-pass is controlled by adjusting the position of screw 19.

' During the final portion of the downward movement of the piston and its rod 21, disk 32 will rest upon its seat 31 slightly before the rod and piston reach the downward limit of their movement and at' such time the ports 37 will still be opened, thereby permitting sutlicient water to iow'through the valve to refill the bowl after the flushing thereof has been accomplished. When ,rod

21 reaches its downward limit of movement,

the ports 37 will be covered by disk 32, thus completely cutting oil' the further flow of water through the valve until it is again opened by manipulation of handle 27.`

Thus it will be seen that' I have provided a vflushing valve that is relatively simple and compact 1n structure, inexpensive of manufacture, capable of being readily adjusted so as to control the iiushing periods and said valve being constructed so that it may. be readily assembled and installed and likewise readily taken apart for the purpose of inspection, adjustments and repairs.

It will be understood that minor changes in the size, form and construction of the va rious parts of my improved flushingV valve may be made and substituted for those herein shown and described without departing from the spirit of my invention, the scope of which is set forth in the appended claims.

l claim as my invention:

1. ln a flushing valve, a housing provided with a chamber having inlet and outlet openings, a packing ring arranged in said outlet opening, a metal ring on top of said packin ring, a exible ring arranged on 'top of said metal ring, a rod arranged for movement through the valve chamber, a screw seated in the lower end ot said rod, a disk valve arranged for sliding movement on said screw and adapted to rest on the flexible ring and said screw being provided with openings that are closed by said disk valve when the sameiit at its upper limit ot movement' on said screw. v

2. ln a flushing valve, a housing having a glee piston chamber and a valve chamber, said i valve chamber having inlet and outlet openings, a packing ring arranged in said outlet opening, a metal ring on top of said packing lring, a ring of relatively soft material arranged on top of said metal ring, a piston rod arranged for operation within the housing and extending into the piston and valve chambers, a disk valve loosely connected to the lower end of said piston rod and adapted to rest on said ring, a piston mounted on said, rod and arranged within the piston chamber, which piston includes a cup washer and manually operable means for elevating said piston rod and the parts carried thereby.

i 3. In a flushing valve, a housing having va piston chamber and a valvechamber, said valve chamber having inlet and outlet openings, a packing ring arranged in said outlet opening, a metal ring on top of said packing ring, a ring of relatively soft material arranged on top of said metal ring, 'a piston rod arranged for operation within the housing and extending rinto the piston and valve chambers, a disk valve losely connected to i the lower end ofsaid piston rod and adapted to rest on said ring, a piston mounted on said rod and arranged within the plston chamber, which piston includes a cup washer, manually operable means for elevating said piston rod and the parts carried thereby, a spring bearing on top of saidpiston and a by-pass formed in the wall of the housing surrounding said piston chamber.

4. In a Hush valve, a housing havingan outlet opening, a packing ring arranged in said opening, a metal ring on top of said packing ring, a ring of flexible material arm ranged on top of the metal ring and functioning as a valve seat, a manually o erable piston rod arranged for operation wit 1n the housing, a screw seated in the lower end of said piston rod said-screw being provided in its lower portion with an axially disposed duct and a series of radially arranged duets, and a metal disk mounted for sliding movement upon the lower portion of said screw and adapted when at its upper limit of movement to rest on the upper flexible disk and tovclose the radially disposed openings in said screw.

In testimony whereof I aiiiX my signature.

WILLIAM L. JONES.

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