US876518A - Flushing-valve. - Google Patents

Description

No. 876,518. PATENTED JAN. 14, 1908.

R. A. BROOKS.

PLUSHING- VALVE.

APPLICATION FILED APR. 23. 1906.

2 SHEETS-SHEET 1.

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, PATENTED JAN.14, 1908. R. A. BROOKSa I PLUSHING VALVE.

APPLICATION FILED APR.23.1906. I

- 2 SHEETS-SHEET 2.

mm; STATES PATENT OFFICE.

- RoBER eA. BROOKS, or CHICAGO, IILLINOIIS.

FLUSHING-VALVE Specification of Letters Patent.

Patented Jan. 14, 1908.

Application filed April 23,- 1906- Serialllo. 313-153- To all whom-it may concern.

Be it known that 1, ROBERT A. BROOKS, a citizen of the United States,'and a resident of the city of Chicago, in the county of Cool; and State of Illinois, have invented certain new and useful Improvements in Flushing- Valves; and ,1 do hereby declare that the following is.a full, clear, and exact'description of the same, reference being had. to the accompanying drawings, and to the letters of reference marked thereon, which form a part of this specification.

This invention relates to improvements in flushing valves of that class set forth in my prior application for patent for flushometers, filed December 4th, 1903, Serial No. 183,790,

'and in which a manually operated flushing valveis adjusted to close automatically after a regulableperiod of discharge in flushing.

In various flushing valves the same fluid that is used in flushing acts also to close the valve. These are frequently out of order because of sediment in the water closing or I of discharge.

It is also an object of the invention to afford a cheap, simple'and durable construction. and one not "likely to get out of order through long continued use.

It is a further object of the invention to provide a construction wherein the regulation of the valve is pneumatically controlled.

"4-4 of Fig. 1.. Fig. 5 is a section taken on.

, The invention consists in the matters hereinafter described and more fully pointed out and defined in the appended claims.

In the drawings: Figure 1 is a central verticalsection of a device embodying my invention showing the valve closed. Fig. 2 is a similar view showing the valve just after the same has been actuated to open the valve. Fig. 3 is a'secti'on taken on line 3-3 of Fig. 1. Fig. 4 is a section taken on line line 5 5 of Fig. 2. Fig.6 is a top plan view of the movable valve.

As shown in said drawings: referring first to Figs. 1 and 2, A, indicates the valve casing provided at its lower end with an inlet pipe a, and a laterally directed'outlet pipe 0/, which is threaded for engagement with the usual pipe connections. Said casing is cylindric in its interior and is provided at .its bottom with a flat shoulder a surrounding the inlet orifice, upon which is secured an annular 5 packing a which may be of fiber or any suitablematerial and the aperture of which corresponds with the inlet aperture of'the casing.

with an inwardly directed peripheral rib', a

the inner face of which is concentricwith the casing and upon which is secured a packing ring a Above thepackingring'c thecasin .is'interfially threaded.

itted withinthecasing end fitting clo'selyifi thin the peripheral rib a, and of a length tofit between-the packing ring a and a is a cylindric shell A which is open at its bottomand top and provided as shown with a transverse partition a below so its middle and through which is provided a. discharge aperture providinga downwardly facing valve seat. Said shell above said partition is provided with apertures opening.

into the discharge casingand to the outlet passage a.

- Slidably secured in the upper end of the shell is a hydraulic head, comprisingapiston B, of metal or other suitable material and having secured thereon a hydraulic packing b, with the edges turned upwardly and-which is secured in place by a washer b as shown in Figs. 1 and 2. Said pistonis provided on its lower end with an integral concentric boss I) of slightly less diameter than the discharge aperture through said partition and which is adapted to project therethrough .when the valve is forced downwardly, and as shown an axial tubular stem 1), integral therewith extends downwardly and is of a length for the end thereof to extend into the inlet opening when the bottom of said-piston B is forced within a short distance of the partition. Said stem is screw threaded externally and a valve closure is provided thereon comprising a relatively large washer b at the lower end of said stem above which is secured a packing washer I), of sufficient size to fit to the seat and close the aperture through said partition a and upon said packing washer is secured a smaller washer-b which s of a smaller size than said aperture .through said partition.

At its upper end said casing is provided A with its upper 75 also having in its bottom a close fitting pack-- bottom of said cap. The bottom of said bag provided with a very small vent port openwardly directed boss 0 which when the bag therein is the adjustable needle 0? which can be thus regulated to a nicety to control the Said piston and the washer l) are provided with an axial chamber open at the top and which communicates with an axial passage extending downwardly through the boss and stem b; Extending downwardly through said passage and connected with an enlarged head If, in said chamber is a stem I) provided with a valveclosure at its lower end closing the passage therethrough and affording a vent valve.

Threaded in the upper end of the. valve casing and bearing on the packing a is a cylinder 0 provided at its upper end with internal screw threadsas shown in Figs. 1 and 2 and provided with an integral bottom 0 having :1 central aperture therethrough and ing washer c. A hollow cap C which is threaded in the top of said cylinder closes the upper end and as shown is provided at its lower end with external screw threads on which is threaded an annular clamping band 0 as shown in Figs. 1 and 2. This clamping matic washer'c and the upwardly directed and outwardly flanged edges of a rubber or other resilient pneumatic bag 0 against the when extended reaches nearlyto the bottom of said cylinder andat all times rests upon and is secured t6 the flat head C within said cylinder which isprovided with a downis fully open bears against said packing in the bottom of. the cylinder. Threaded axially into said boss is a'rod .0 the lower end of which is threaded into the head 19 on the stem I) of the vent valve. A spring 0" bears on said packing and on the'under side of said head C and holds the bag normally in its closed position. Extending axially through said cap 0 and into tliebag is a tubular stem 0 which as shown .is provided at its lower end with a flat foot piece 0 threaded thereon which bears against the bottom 0 of the on its inner side and as shown said stem is ing thereinto closely above the foot piece and is also provided with an adjustable needle valve 0 at a point slightly above the bottom or floor of said hollow cap and a port is pro l vided in the stem at or near the seat of said valve. As shown the stem is provided with a very small bore at its lower end and am ich larger bore at its upper end and threaded escape of air from said bag; As shown a port is. provided through the piston B and carried upon the rod or stem 0 is a washer 5 which when the-stem is forced downwardly seats to close said portand also is elevated above the same when the flushing above the piston the closure of said vent valve valve is closed. v

The operation is as follows: With the} valve closed as shown in Fig. downward not familiar with these devices or by those meddling, instead of flushing continuously the seating of the valve on the packin washer a closes the valve and no water will flow. If new the stem is released the upward pressure on the valve from below 1s more than balanced by the downward pressure above the piston B and the valve would remain permanently closed on this lower seat were it not that the action of the spring I), which gradually forces the air out of the" bag 0'' and closes the vent valve thus cutting off pressure from above the piston. Inasmuch as the adjustment of the vent valve with respect to the head If, is such that when the vent valve is closed said head projects necessarily raises the valve plate I) thus venting the water, otherwise trapped above the piston, through the piston and into the chamber, in the lower end of the shell. i In asmuch as the bottom of the piston never seats upon the partition a" a free passage is thus afforded to the outlet. In consequence the pressure above the piston is reduced and pressure from below gradually raises the valve and piston,--the raising thereof beingat all times regulated by theupward movement of the bottom of the pneumatic bag. For 'obviously should the piston rise sufficiently to open the vent valve theconditions previously'existing would be immediately restored either wholly or in part to check fur ther upward movement until the bag has,

sufliciently collapsed to allow further closure;

The flushing valve finally closes and seats upon the partition in the shell A" at which time the vent valve being closed by the prese.

sure of the spring c thereon the valve rremains permanentlyclosed until actuated.

Obviously the rate of closure can be per fectly regulated by regulating theescape of air from the pneumatic bag or cylinder and this is accomplished by means of the needle valve or any suitable arrangement of valves for the purpose. It is desirable however to permit said bag to fill quickly in actuating the flushometer to start the flow and for this purpose, as shown, the floor of the plug orcap C is provided with a relatively'large opening therethrough and the packing washer c, is provided with downwardly turned edges at its center and which bear against said stem, serving as a valve to afford quick and full opening when the stem is forced inwardly in actuating the valve.

.Obviously while I have described the pneumatic bag or chamber.

pose limiting this application for patent.

mechanisms as pneumatically controllediit maybe. controlled by any suitable fluid in I do not purotherwise than necessitated by the prior art as various details of construction may be varied without departing from the principles of my invention] I claim as my invention:

' '1. In a fiushometer the combination with a a valve is unseated and means operated by fluid other than the flushing fluid 'forcontrolling the closing of both the vent valve 'andautomatic valve.

2. In a device of the class described-the combination With a casing having an inlet and an outlet, a-partition dividing saidcasing into a lurality of chambers, an automatically c osing valve adapted to seat-0n one side of the partition to close the com-- munication between the inlet and outlet, a passage connecting opposite sides of the automatically closing valve, a manually unseated vent valve adapted to close the same,

fluid controlled means regulating the rate of closing of said vent valve and a spring-adapted to aid in closing the automatic valved" 3. In a device of the class described the combination with the outlet, and an inlet 'pipe of a manually opened valve seating automati'cally to close the inlet pipe at either of two limits of travel and a passage opening therethrough, avent :v-alve controlling said passage and fluid controlled means for regulatuig the -'clos1ng off the vent valve in said closure.

4. In a device offthe class described the I.

combination with casing having an inlet and an outlet pipe of chambers therein, a pis ton in'one of said chambers, a stem extending downwardly therefrom into a lower chamher, a closure on the end of said stem to close the inlet, a passage through the piston,'stem and closure affording communication between the inlet and above the piston, a normally seated vent valve for said passage adapted when unseat'ed to admit pressure above said pistonto open the closure, a pas-' sage through the piston approximately parallel with the aforesaid passage, a closure above the piston adapted to close said pas-' sage to automatically move the piston in one dire'ctionby inlet pressure and means movable with the vent valve adapted to automatically unseat. said closure above the piston prior to seating the inlet closure.

5. In a device of the class describedthe combination with a casing having an inlet and an outlet orifice, a partition affording a valve seat, a piston movable above the partition; a stem engaged thereto projecting beyond said partition, a closure thereon controlling the inlet, aplurality o'f passagesthrough said piston, one extending through the stem and closure, a manually unseated vent valve opening one of said passages to admit inlet pressure above the piston, a valve adapted to close the other passage by inlet pressure .and means automatically seating said vent" valve and simultaneously unseating the valve controllingthe other-passage.

6. The combination with a casing having a Water chamber therein having an inlet and an outlet of a fluid containing cup movable above the water chamber, a stem extending externally the casing and also into the water chamber, a closure for the inlet passage to said water chamber, a passage opening-therethrough, a vent valve carried on said stem.

and controlling saidipassage. a spring acting normally to seat the closure said fluid contailiing cup connected with and controlling the closure of said valves; g

7. In a flushometer the-combinationwith a casing affording a water chamber of an inlet and an outlet pipe opening thereinto and therefrom, an axial sleeve supported in said waterchamber, above the inlet pipe, a partition dividing the same-transversely, a passage opening axially through saidpartition and afl'ording a valve seat on the under side thereof, an inlet valve closure normally closing the inlet passage, a restricted passage opening through said closure, a vent valve seating to close the same,- ia stem extending axially through the casing; and said closure and engaging the vent valve, a spring normally holding the closures seated and afhud containing cup movable on said stem and retarding the seating of the closure after flushing. v I

.8. A flushing valve comprising a water casing having an inlet opening in its bottom and an outlet in its side, a sleeve fitting closely in said water casing and divided transversely by a centrally apertured partitlon, discharge aperturesopenmg through said sleeve above the partition, a valve closure seating to close the partit-ion and also seating at the top of the inlet opening and having a vent valve opening: therethrough, a stem extending through said casing and engaged on the vent valve closure and adapted to be manually actuated, in unseating both valves and a collapsible cup connectedon said stem and retarding closing of said valve.

In a flushing valve the combination with the valve controlling the flow of means acting to'close the same and a collapsible cup containing fluid for controlling the rate of closure. I

10.- In a device of the class described the combination with a casing having an inlet and sin-outlet, a valve seat in the casing, a

-for manually opening the same, mechanism.

closure therefor, a piston rigidly connected therewith, a passage through the piston and closure, a vent valve normally closing the passage, manually operated means opening the passage admitting inletpressure above the piston to unseat the closure, fluid controlled automatically acting mechanism adapted to seat the vent valve and a valved passage through the piston opened simultaneously as the vent valve closes permitting inlet pressure to seat said closure.

11. In a device of the class described the combmation with a casing of an inlet and an ,outlet therefor, a valve seat in the casing between the inlet and the outlet, a piston in said casing, an inlet closure connected there with adapted to seat on said seat, a plurality of passagesopening through the closure and a valve controlling each passage adapted to alternately close its respective passage to vary the pressure on either side the piston thereby closing and opening the inlet c'ontrolling valve.

12. In a device of the class described the combination with a casing of an inlet and an outlet pipe therefor, a partition provided with a passage therethrough, a valve seat on one side of said partition, a differential valve closure normally seated thereon, avalve controlled passage through said closure, manuallyactuated means opening said passage, automatic means moving the closure from said valve seat towardthe seat on the inlet 'pipe when said passage is open and fluid conclosure.

14. In a device of the class described the combination with a casing having an inlet and an outlet orifice, a valve seat at the inlet orifice, a valve seat above said inlet valve seat, a valve closure movable by inlet pres- 5 sure from'above and beneath to seat said v 1 outlet pipe therefor, a seat therein, a closure closure on said seats a vent valve adapted to admit and cut off inlet pressure above said closure and regulable means controlling the rate of movement of the vent valve in one direction.

15. In a device of the class described the combination with a casing of an inlet and an adapted to seat thereon, a chambered cap secured on the casing, a flanged clamping ring secured thereto, a pneumatic bag erasie clamped between thes-ame and said. cap, a

16. In a device oi the class described the combination with a casing of an inlet and an' outlet pipe therein, a-plurality of alined valve seats in said casing, a closure normally seated on one by inlet pressure and adapted to seat on the other at its opposite limits of movement to close said inlet pi e to prevent waste of the flushing fluid and a fluid controlled vent valve controlling the movement of the closure.

17. In a device of the class described the combination .witha casing of an inlet and an outlet pipe therefor, a valve seat in said "case ing, a closure seated thereon by inlet ressure, a seat adjacent the inlet pipe, sair closure seatingthereon to prevent waste of the flushing fluid when moved to its lowest limit of movement a vent valve for said closure admitting inlet pressure to hold the closure unseated when opened and pneumatic means controlling the rate of closing of said vent valve.

combination with a casing of an inlet and an outlet pipe therefor, inwardlyfacing seats in said casing, a valve closure adapted to seat on either by inlet pressure to close the inlet pipe, a vent valve for admitting inlet pressure above the closure and pneumatic means 18. In a device of" the class described the controlling the rate of movement in one direction of both the valve closure and vent valve.

19. In a device ofthe class described the combination with a casing of an inlet and an outlet pipe opening thereinto, and therefrom, valve seats in said casing, a valve closure adapted to seat on either seat to close the inlet pipe, a normally closed and manually opened vent valve adapted to admit pressure above the closure for unseating the same and spring actuated and pneumatically controlled means governing the rate of movement of the closureand the rate of closing of said vent valve.

20. In a device of the class described the combination with a casing of an inlet and an outlet pi e therefor, valve seats in said casing, a va ve closure adapted at one limit of.

movement to seat on one and to seat on the other at the oppositelimit of movement to close the inlet,.a normally closed vent valve controlling the side of the closure upon which inlet pressure is exerted, manual means for opening the same and pneumat- 30 ment therewith, a difierential valve closure ically controlled means regulating the upward movement of said closure and the closing of the vent valve.

21. In a device of the class described the combination with a casing'of an inlet and an outlet pipe therein,-alined valve seats in said casing, a valve closure normallyseated .on

one of the same to close the inlet, a vent valve adapted when actuated to admit inlet pressure to move said closure toward the op-' posite seat and a bag manually operated in one direction and'pneumatically controlling 4 the rate of return movement ofsaid closure sure fromabove the closure and, collapsiblepneumatic means controlling the period of flushing andthe rate of opening-of said passage,

outlet pipe therefor, a valve seat adjacent the inlet orifice, a valve seat in axial 'alineheld seated on one seat by inlet pressure, manually operated means admitting inlet pressure on the larger area of the closure to move the same toward the inlet orifice, a Valve controlled passage for releasing inlet pressure on the larger area whereby inlet pressure returnsthe closure to thefirst seat, means automatically opening said passage and means controlling the rate'of opening thereof.

24. In a' device of the class described the combination with a casing having an inlet and an outlet of a plurality of valve seats therein, a differential closure adapted to seat on either to close the inlet, means admitting inlet pressure on the larger area to move'the closure toward one seat, a valve automatically opened simultaneously as the admitting means is closed to release the,

pressure to move the closure to the other seat and pneumatic regulating means controlling the period of movement-of the closure in one direction and the rate of movement of the pressure admission means and said valve.

25. In a device of the class described the combination with a casing having an inlet and an outlet, alined inwardly facing valve I seats therein, a difierential valve closure adapted to seat on either, .a valve manually operated to. admit inlet pressure to the larger area ofsaid. closure at one .limit of movement and pneumatically controlled .to

Ina device of the class described the combination with a casing of an inlet and-an .combination with a casing having an inlet site limit and a valve automatically actuated by movement of the aforesaid valve to release pressure from above the closure thereby moving said valve closure to close the inlet at each limit of movement by inlet pressure.

26. In a flushometer the combination with a casing provided with an inlet and an outlet pipe, a valve seat at the inletpipe, a valve seat gpposite the outlet pipe, a valve closure normally seated on the last named valve seat and held to its'seat by inlet pressure from beneath, a vent valve admitting pressure above the closure to seat the same on the in let valve seat and to hold said closure seatedas long as the fiushometer is manually actuated and a release valve relieving pressure from above the closure and automatically actuated simultaneously as the, vent valve closes. 5

27'. In a device of the class described the combirfation with a casing having an inlet and an outlet, a valveseat at the inIet, a valve seat at the outlet, a difierential valves closure adapted to seat on either to close the inlet and held in. eitherposition by inlet pressure and independent valves one adapted to release inlet pressure to unseat the closure the other to seat the. closure, said valves simultaneously movable and regula- 5 ble mearis controlling the rateof 'movement of both of said valves. 28. In a device of the class described the and an outlet orifice, a valve seat in the casing, a piston movable above the seat, a closure connected with the piston for said seat,' a plurality of valve controlled passages through the piston, .one of which extends through the closure, manually operated means for actuating the valve controlling one of said passages to unseat said closure and means automatically unseating the valve controlling'the other passage .prior to seating said closure.

. 29. In a flushometerthe-combination with a casing of an inlet and an outlet pipe thereby inlet pressure, a vent valve admitting pressure above the closure and adapted to close to cut off the pressure,'a-relief slmultaneously actuated as :the' vent valve closes to release pressure fforfi above said closure and collapsible means'r'egulating the period of flushing and the rate of closing of the vent valve.

30. Irfadeviceof the class described the combination with a casing of an inlet and an outlet pipe therefor a' plurality of valve seats, a valve closure normally'seated on one ada ted byinlet pressure from above to seat on t e other seat and held seated thereon a predetermined time by inlet pressure above,

a vent valve cutting off inlet-pressure from above, a valve simultaneously opened releasing pressure above the closure whereby .inlet pressure moves the closure to normal and means regulating the seating thereof and the rate of movement of'both of said valves.

31. In a device of the class described the combination with a casing having an inlet and an outlet orifice, a valve seat in said casing, a piston shdable above the seat, a

downwardly extending stem integral there- With, a closure adjustable on the lovv 0; end of saidstem, a passage through the piston and stem, a rod extending therethrough having a head on the upper end thereof, an adjust able vent valve on the lower end of the stem adapted to close said passage, a passage OX- tending through the piston, a valve adapted to close the same and unseated by said head, a collapsible bag above the piston, means connecting thebag rigidly with the head and a stem extending into and rigidly connected to the bottom of the bag adapted when depressed to open the bag and the vent valve to ermit inlet pressure to open the closure an said closure automatically seated against pneumatic pressure.

32. In a device of the class described the combination with a casing provided with an inlet and an outlet pipe of a valve seattherein, a differential closure for said seat, passages in said closure one a'tl'ording communication between the inlet-and above the closure, the other aflording communication between the outlet and above the closure and a'valve for each passage adapted one to close its passage when the other opens its passage thereby seating and unseating the differential closure.

33. In a flushometer the combination with a casing of an inlet and an outlet pipe therefor, a valve seat in the casing, a closure automatically moved to and firmly held I seated on one seat by inlet pressure and moved to and held seated a predetermined time on another seat by inlet pressure above if the flushometer is manually actuated for a considerable time thereby preventing the Waste of the flushing fluid, an automatically operated valve for releasing the pressure from above the closure and means controlling therate of movement thereof.

34. A 'llusl'iometer comprising a casing having inlet and outlet pipes, a valve seat at each, a closure normally held seated on one by inlet pressure, moved toward the other by inlet pressure and returned to its normal position by inlet pressure a collapsible cup above the closure, a head rigidly secured to the bottom thereof, a stem extending into and rignlly engaged to the cup, a pneumatic washer rigidly secured to the top of the cup and adapted to admit air into the bag betweei'r the same and stem and to firmly close against the stem to prevent escape of air, operativeconnections between the head and closure, a assage in the stem consmunicating Within and outside the cup and means regulating. the escape of air therethrough.

35. In a device of the class described the combination with a casing of an inlet and an outlet pipe therefor, a valve seat near each, a closure normally seated on one seat by inlet pressure from beneath, manually operated p ROBERT A. BROOKS. I Witnesses:-

WM. C. S ITH, W. W. WrrnENBURY.

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