US1034826A - Flushing-valve. - Google Patents

Description

T. P. PAYNE.

FLUSHING VALVE.

APPLICATION FILED'MAH. 1911 1,034,826, Patented Aug. 6, 1912;

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FLUSHING VALVE.

APPLICATION FILED MAY 4, 1911.

1,034,826, Patented-Aug. 6, 1912.

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.4; A TTORNE Y! THOMAS F. PAYNE, 0F PITTSBURGH, PENNS YLVANIA.

FLUSHING-VALVE.

Specification of Letters Patent.

Patented Aug. 6, 1912.

I Application filed May 4, 1911. SerialNo. 624,954.

To all whom it may concern:

Be it knownthatl, THOMAS F. PAYNE, a citizen of the United States of America, residing at Pittsburgh, in the. county of Allegheny and State of Pennsylvania, have invented a new and useful Improvement in Flushing-Valves, of which the following is a full, clear, and exact description, reference being'had to the accompanying drawings, which form part of this specification.

This invention relates to flushing valves adapted for use in connection with waterclosets, la vatories, and similar sanitary apwparatus, and more commonly to that type ofvalve inwhich the main valve which controls the source of supply .is operatively reciprocated by differential of water pressure and flow which is controlled by a secondary valve or release mechanism.

The invention-aims to provide a simple, durable and inexpensive improved construction therefor, and among the objects-contemplated by it are the provision of a device in which sticking of the valve, due to imperfect" centering, is preventedand the provision of a fitting or casing by means of which the relief valve is compactly mount-- ed in a chambered cap portion and also a fitting by means of which leakage from the discharge chamber is overcome.

I will now describemy invention so that others skilled in the art to which it appertainsmay understand. and construct the same, it being premised, however, that various changesrnay be made in the construction of the valve shown in theaccompanying drawings without departing from my inventio'nf Figure 1' is a vertical sectional view of an upright valve made in accordance with my invention, the main valve being-seated; Fig. 2 is a similar view of the valve showing the valve in open or flushing position; Fig. 3 is a section through the valve casing on theand has, at its lower end, the ingress or inlet passage 3 which may be coupled to a suita 1e source of supply. lVithin the chamber 4 of the casing is a valve 5 which controls the supply port 3. This valve normally closes the passage 3 through its engagement with the seat 6 and has the d'e- 60 pending stem-like portion 7 which passes through the centering or guide-arm 8 diametrically carried in the port 3 by the casing. From the side of the casing leads the discharge port 9 which may be coupled by the suitable pipe 10 to a closet-bowl or other apparatus to be flushed, and in communication with this discharge port 9 at a point outside of where the said discharge port 9 communicates with the chamber at is the discharge vent 11 which leads from the chamber 12 of the cap 13 which has screwthreaded engagement with the top of'the casing. This cap 13 has the annular chan' nel 14 provided with the perforations 15 through which the reliefwater is discharged into the said chamber 14 and thence to the passage way or vent 11. The cap 13 is shown as having the packing 16 and 17 by means of which sealing is effected ,between 0 the upper part of the casing 2 and the associated faces of the cap. It has been found, however, that unless the packing at the top of the cap and between the cap and the lower portion of the cap and fitting is re- 35 newed quite often, there is a leakageor seep age between the cap and the casing, which is very undesirable; so, to overcome. this leakage I have caused the discharge passage way 11 to communicate with the discharge I tion or siphonic action which will effectively drain all water from the upper portion of the casing 01' the discharge chamber; the port 9 being so formed at ats point of coinn'iunication with the chamber 4. that there is pro\ ided a depending wall or battle 9 which projects down into the passage way of the port 9 on the upstream side with respect to passage 11 sutliciently to prevent the flow of water into the passage way ll, the said bathe serving to guide or direct the body of the stream in a straight lineto the exterior portion of the port. Th passageway 11 is contracted atits delivery end to a port 11 of relatively sinall area, so that the down rushing water is ejected in a solid jet into the discharge passage 9. This jet formation insures a siphonic pull and proper suction in thedrainage passage 11' and chamber 12 'so as to efiect proper and complete drain the valve 20 which is terminally carried by the stem 21. Said lower portion orweb 13 of the cap 13 is upwardly bulged or crowned,

as shown, so as to dram naturally toward the ports 15 and channel 14, the water flowing through the relief port 8 when valve 20 is opened thereby insuring complete draining of. water the chamber 12,-on the stem'21, is a fixed collar 22 between whichand the seat 23 concentrically formed with the port 18, is the interposed" coiled spring 24 which serves to normally hold the'valve 20 against the seat 19. The steiir 21' is reciprocally carried by the 'cap 13," said stem passing upwardly through the double stuffing box 25 and ha vfrom the chamber 12. Within ling at its upper end the suitable pushb'utton 26 by means of-which the stem may be de pressed to unseat the valve 20 when it is desired to open communication between theehamber4 and the chamber 12. Between the wall'13 of the cap 13 an" "the lower'portion of the-chamber 4 is the piston 27 which comprises the head portion 28 and clamping screw 29 between which lies the disk 30 which serves to back up the cup leathers 31 symmetrically disposed on opposite sides thereof. To this header body portion 28,is secured the yalve 5, and centrally passing through the valve 5 and piston 27 is the small inlet passage 32 which leads into the chamber 4 between the piston 27 and the lower portion 13' of the cap 13. Carried by the clamping screw or disk 29 is the central adjusting screw 33 to limit the travel of the piston 27, and this adjusting screw has the central bore 34 by means of which the communicationof the passage 32 with the chamber 4 above the piston 27 is effected. The bore 34 is somewhat'restricted or smaller-than the passage 32 and projecting thereinto is the pint35- carried by the lower end of the stem 21. The purpose of this pin is to act as a wiper, removing any particles of dirt which may lodge in the inlet passage. The wiping ac tion is efiected not only by the reciprocation ofthe. plunger but also by the downward stroke of the stem 21 when. the valve 20 is forced from its seat. The upper end of the screw 33 has the cross-cut or kerf' 36 which leaves the passage way 32 in open communication with the chamber 4 above the piston 27 when the screw 33 ascends with piston 27 by means of the .9 for flushing t and bythis-flow f water into the passage ting as having the inlet an the piston 27 into abutment WiLh the lower end of the stem 21 or valve 20 as the valve 5 is caused to be elevated or opened to flushing position. In this type of valve the valve 5- normally closes the port 3 of the source of supply by reason of the pressure of the water back of the large piston 27 as against the "pressure of the Water against the relatively small differential faces 37 of the valve 5.

With-the depression of the stem 21, and resultant lowering of the,

valve 20 from its seat 19, the water bound in the chamber 4 above the piston 27 escapesthrough the port 18 .to the discharge "chamber 12 and then to the passage way 11 or outlet 9; This relief of the pressure iip o ri the top of the piston 27 causes the said piston 27 to ascend within the chamber 4 'by reason of the pressure of the water against the valve 5,.a's-shown in Fig. 2. When the valve is in this open osition the water passes from the port 3 mto the lower part of the casing '2 to the lateral discharge port closet'or other apparatus,

9 there is createdfas above stated, a suction or siphonic' action within the chamber 11 which causes the water within thechamber 12 at the top of the casing to be thoroughly drained therefrom. As the water passes into.t he passage way 3 it gradually feeds through the small passage way 32 of the valve 5 and. piston 27 into'the' upper'part 5 to be'returned td'its normal ositionon the seat 6. When the valve 20 1s forced from its seat for the discharge of the water bound in the upper part of the casing, it is imme-- ,diately returned to closed posltion by the spring 24. With thevalve 5 being provided with the flat stepped or differential faces. 37 the incoming water .is gradually choked or cut-01f by successively decreasing stages so that there remains a steady adually re-, d-ucing stream 'until thevalve 1s completely closed, to fill the'bowl.

In Fig. 5 I have shown the casing or fitd flushingports in a'reverse position to that of the precedingviews. ,In this View, the discharge passage 11 communicating, with the main discharge or flushing port 3', corresponds in function to the passage wayll of Figs. 1 and 2. The. piston 27 is shown as having the angular or lateral entrance 40 to the passage way 32 instead of having the passage 32 extending -to the full limit of the valve and its stem,

for the reason that the lower part'of the casing has become the discharge port 3' while the inlet port .9 assumes the discharge port position in the side of the casing. In this case, the battle wall 41 corresponds to the wall 9 of Figs. 1. and 2, and itwillbe noticed that the guide arm 8 lies at right to the main discharge a 1;;

01 the chamber 4'where it exerts its pressure upon thepiston and thereby causes the valve detail of "construction Without departing end, and a bafile on theupstream side of -water, to'pass the wall-41 and mouth of the andt ereby'cause a-suction or'dr'awing'ac- "tibII-inthe'PasS'age 11'. 'The remaining con- -flushingaction is constant and not" spasmodic, and in which leakage .is

angles t6, and out of theway of flowfrom' .thepass'age 11' so as to permit the discharge pas e 11", in asolid uninterrupted stream revented and also-sticking or binding and etonation of the-valve overcome. v

The devi 'e may be "greatly modified in from my real invention,'.as'will be apparent to those skilled in the art.

' Having thus -described my invention,' What I claim and desire to secure by Letters Patent is;

1. In a flushinggvalve, a casing having inlet and outlet ports," a' valve controlling oneq'of said ports,- a piston in said, casing controllin said; valve, a relief chamber above sai ,p iston,a valved-port connecting, said relief chamber and the pistonchamber, a drainage passage-from said relief chamber to the outlet side of the "valve having a re stricted or jet'dis'charge port at its delivery in its upper'end.

said jet discharge port at its junction with the outlet passage to divert the outlet stream, prevent its backing up into said drainage passage, and tend to produce a vacuum in said drainage passage.

2. In a flushing valve, a main casing having inlet andmutlet ports, 'a valve having a series of stepped flat faces to efl'ecta graduated control, controlling one of said ports, a p ston having a feed passage controlling said valve, a relief chamber above tion' therewith, and a tubular feed plug in said piston feed 3, In a flushing valve, a main casing having inlet and outlet orts, a piston valve controllingw one of sai ports and having a Tfeed'passage therethrough, a centering, stem v for said valve, a cross-strut in said casing' toreceive and guide said stem, a, relief chamber above the piston chamber and connected therewith by a valved port, and an adjustable tubular feed lug in the top of said piston having a fee kerf in its top.

In testimony whereof, I have hereunto set my hand. I

THOMAS E. 'PAYN E. Witnesses:

M. A. KELLER,"

MARY A. EARTH passage having side ports the piston chamber having a valved connec-

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