USRE16764E - Flushing valve - Google Patents

Description

i Oct.

w. s. WHITE FLUSHING VALVE pagina Filed July 17, 1923 2 shams-sheet g 4,1921. R- 16364 w. s. WHITE v `mxsunw wma Original Filed July 17, 1923 2 sheets-sheet 2 Ragged oct-4, 1927.

FICE.

wILnraM sanas wirr-TE, or DENVER, CoLonAno.

FLUSHING VALVE.

Original No, 1,511,927, dated Qcteber-l'l, 1924, Serial No. 652,126, filed July 17, 1923. Application for reissue led July 22, 1325. SerialcNo. 124,281.

' My invention relates to flushing valves and more particularly to thattype of valve including a float piston movable in a vertical cylinder andin which manually operated `means is provided att-he exterior of the valve to give rocking movement to a 4shaft Yto cause the piston to` be displaced to admit the flushing water.l

The 'general object of the lpresent invention is to improve in various Vparticularsv valves of the vindicated type with a view to lpromote simplicity,` attain increased eiii- -v cicncy, and provide afnovel means for vaare merely illustrative of the inventioru.

riously regulating the flushing period.

The nature of vthe invention, its distinguishing features and advantages, will clear" ly appear as the` description proceeds.l

l Reference is to be had tothe ac eompanyf" ing'drawings forming a partof this specifi` cation, it being understood that the drawings of practical examples Figure 1' is a side elevation of lav flushing valve .shownpartly broken away-and part of 4a discharge pipe being shown in vertical A section; l

Figure 2 is 'an enlarged vertical section of the valve and part of thel flushing tank;

."Figure 6. y

" lower` end vof Which has a chamber 12 rigid Figure 3 is a horizontal section on the 'Figure/1 is a vertical section of the valve ina slightly modified form;

l Figure 5 is a fragmentary vertical section showingr a further slightv modication; Figure 6 is a'V detail of the upper portion of the` piston showing a modification;

. Figure 7 is a` fragmentary horizontal section inthe plane indicated by the'line 7-7,

'In the illustrated example of my invention the numeral 10 indicates af ilushing tank mounted in Which is a valve casing 11, the

' therewith and vdisposed below the bottom'ot 'thetank 10,1said-chamber 12 having threadf ed connection with a discharge pipel. The

casing. llhasy vinlets near the bottom there-M of vtoadmit water to the interior ofthe casing. A oat piston is yvertically"movable in the casing Alland adapted to seat on an annular ang'e `16 at the base of the Casing 11, Journaled 'in the chamber extension12 is a .rock- `shaft 17 vhaving a 'laterally ,bent han-v i. .dle 18..l On the rock'shaft .17 is a lateralrm `19gextending`ilnto the vehaiuber '12V and' se-f tomof-Y the float piston or mainvalve 15.

The piston 15 is provided with a tube `or rsleever 21 surrounding the upper end of the `pin 20 and spaced therefrom.` The sleeve 21is slotted at its lower end as at A22 and near the upper end has holes 23. The space l 121 between the tube 21 and pin 20. forms a passage for air and water as Will appear.

' Aboveg'tlie pin 20 the ioat valve 15 has a ball seat 24 at the top of which seats a ball valve or equivalent valve 25. Saidvalve has a .control chamber 26 beneath a cap 27 on the piston, in the top of the casing 11 in the construction shown inv Figures 1 to 3. Near the top of the casing 1l is a spider or partition 28 affording `a iow of air and water and above the partition is a cap 29 having a depending headed' pin 30 movable for adjustment in a'ventralhole 310i partition 28. The lower end' of Vthe piston 15 is closed by a hollow screw plug 32 whichis provided with a hole or opening 33 through which the-vertical pin 2() extends upwardly into tube 21. In' the chamber 26 .isa Second valve 34 controlling the upper end 'of vertical passage 35 in the bottom of the chamber v26 to establish communication between said of'its seat 16 and move it into'the chamber As the valve 15' is raised, thewater, ``displaced from the chamber 1117 can pass the valve 34 9 through the passage 35 past to theV discharge connection or pipe 13, since the pin 20 holdsfthe' ball 25 olf itsl seat. WhenV the inlet openings' or ports 14 are cleared water will be admitted to .the Vdischarge pipe for flushing .the closet or urinal etc., and some lwill be admitted to the interior of the {valve 15 from -Whenee it will tend to flow into the storage chamber 111.` Water permitted te Vpass 'th-rough the inlet ports 14 v'and j-tlience to the discharge pipe. 13,1ex erts adewnwardpull en the piston 15. As

` the piston descends ittends-to crea-te a vacuum in the chamber 'llflfwliich vacuum is 'broken'by the air or waterfor'both' within tabella-piston 15 here, @flawed e, pas by sage 34 is providedbeneath ment permits `producing a water hammer.

ton is seated lthe water which haspassed the valve and beneath the valve 34v through the passage to chamber 111, it being understood that the valve 34 does not fit tightly on its seat but that a limited pasthe valve` by the formation 'of the seat. This needli'ng passage 34 may be provided in any manner as will be understood. It serves to delay iilling of the storage chamber 111 and thus determines the rateof closing ofy valve `15.

The downward pull of the water on the sides and the accumulation of water in chamber 111 on thetop of piston 15y finally seats the latter. TheA piston 15 isnot tight in 'the casing 11 but permits the flow oil? water from the inlet 14 between the piston and said casing tothe chamber 111, producing a pressure and cushion in said chamber, tending to cause the piston to seat without Aiter the pisintothe hollow piston 15 and displaced air while the piston is in operation, will escape through the slots 22 and hole 33 and the piston will again be filled with air so that the valve is ready for another operation. The

.valve 34 acts as a trap to prevent the contents of thel hollow piston from passing too Jfreely into the chamber 111 and a predetermined iushing period can be had by regulating the flow between the valvey 34 and its seat in any desired manner. 'Ihe loose cap 29 because of having limited vertical moveair to pass through the spider 28 and `outward from the top of the chain- Al (l the casing is ber 111 to the top of the tank 10 or pipe 39 or to a supply pipe to finally pass, if desired,

to auxiliary air storage chambers provided in connection with some forms of valves of this general type.

In the form shown in Figure 4 the casing 111 corresponds essentially with the casing 11, except that at its base below the inlet 114 formed integral with an outer housing or shell 110 to contain water, in lieu of the tank 10. Said housing 110 has a cap 36 which secures the flanged lower end on an inletpipe 37 leading into the top of said housing. The casing 111 and Yits appurtenances as well as the valve and its operating and controlling pin 20 are the same as in the previously described construction exceptV that the casing 111 above the loose cap 29 has an integral extension 38 communicating directly withthe inlet pipe 37. Said, inlet In the form 'shown in Figure k5 the con- `struction is the same as in Figure 4 except thatthe cap'29 yand pin 3() areomitted. rInalsoin Figure the extension 38 has lateral openings 40 above the casing which in ieffea fthe space between the casing 111 and the housing 110, thence to the inlet 114.

In Figures 6 and 7 in lieu of the valve 34 and passage 35 an equivalent check valve assemblage is provided, comprising an annular resilient band 134 controlling lateral openings 135 that establish communication between the chamber 126 corresponding with the chamber 26 whereby to control communication between the chamber 111 of casing 11 and the interior of the hollow piston 15 through the passage 221 correspondingr with the passage 121. A l I would state in conclusion that while the illustrated examples constitute practical embodiments of my invention, I do not limit myself strictly to the exact details herein illustrated, since, manifestly, the same can be considerably varied without departure from the spirit of the invention as defined in the appended claims.

I claim: y i

1. In a flush valve mechanism having a fluid inlet port and-a fluid outlet port and a connecting passageway, a fluid storage chainber adjacent said passageway, a valve bctween said chamber and passageway for Coutrolling communication between said inlet and 'outlet ports, said valve having an auX- iliary chamber therein and an orifice conimunicating between said auxiliary. chamber and said storage chamber and a second orifice communicating between said auxiliary chamber and said passageway, gravity operated means normally closiiig one and substantially closing the other of said orifices,

2. In a mechanism of the character dcscribed having a-lluid inlet port and a fluid outlet port,a valve vnormally closing said i outlet port and means for controlling said 4valve comprising, a fiuid chamber having' an orifice communicating with said outletl port, gravityA operated check means normally preventing `lluid flow Jfrom said chamber Vto said outletport` a second fluid chamber having an opening in communication with the First said chamberv at all times. gravity operated means for restricting fluid flow through. said opening from the first to the second chambers, andL manually Aoperable means for moving said check means to uncover said orifice. l

3.- In a flush V`mechanism of the character described having a passageway,flui d inlet stead of the spider or partition 28, a closed and outlet ports to said. passageway and a valve for interrupting communication between said ports, means for controlling ythe closing movement of said valve comprising, a fluit storage chamber above said valve,

lill) Va fluid regulating chamber in said valve and v`between`V said storage Vchamber and passagel Way, saidregulating chamberhaving two oriices Aone ,communicatingbetween said passageway and said regulating chamber and the other communicating'between said regu-V 1 4lating andfstorage chambers, andnieans including av gravityc'losing check valve nor-- c mally substantially closing the lastsaid orifice -`,but permitting i the bleeding vof fluid from said regulating chamber tosa'id storage chamber.

, ,saidv orifices and .substantially closing the 'first of channel 4therepast',V and manually operableH jingfand vclosing movements of said valve, Y saidvalveha'ving an auxiliary chamber therein,said auxiliary,v chamber vhaving an orifice communicating with said storage chamber and a second orifice affording communication "between said auxiliary chamber .and ports,

'gravit-y operated check vrvalvesin said auxiliary chamber normally closing the second of said orifices ,except for a fluid' bleed means vfor displacing the gravity operated Y'check valve closing the second said orifice I, and for Adisplacing said main valve upwardly into said'chainber for opening communication between said ports. l

v5. In a flush valve provided with a l,water inlet and a .Water outlet, a shut-off valve, means Afor openingthe shut-ofi' valve and a control' device for restrict-ing the closing movements of the shut-off valve, said Vcontrol `device vincluding a Water storage chamber and a piston in said chamber having-a passage through. which fluid. flows to and from` said'storage chamber from said inlet and to said outlet respectively, non-floating gravity means between portions of said passage for restricting the passage of fluid therethrough in one direction during the closing movements of said shut-off valve and for closing Said passage entirely when said shut-off valve is closed, and means for fully opening said passage for opening said shut-off valve.

6. In a flush valve, a Water inlet, a water outlet, means providing a fluid chamber above said inlet and outlet, valve` means within said chamber for interrupting communication between Saidl inlet and outlet and movable between predetermined limits on opening and closing communication therebetween, a fluid conduit from said chamber adapted to communicate both with said inlet and outlet, a first valve in said conduit operative on movementpof said valve means in one `direction for restricting fluid flow through said conduit to said chamber, a second valve in said conduit for closing said 4operated to close .said connections conduit to passagelof-ffluid from said cham- ,ber,sai`d first valve being inoperative to restrictv said conduiton-flow of fluid through said lconduit from said chamber, saidsecond valve beinginoperative to close said conduit to fluid `passing-gto said chamber, andineans -forfrendering said second valve inoperative tolclosesaid conduitgto pa=ssageloffliiid from saidchamber, said first and second vvalves having=the same sense of operation. 7. In a'flush valve, a water'inlet connection, a wateixoutlet connection, a fluid chamber adjacent one Aof-salid water connections, means in-saidcliainber operatively movable thereinfto'openand vclose communication between Vsaid connections, a fluid conduit in said-'means communicating between the interior of said clianibera'nd one of said connections, `means operative -on lmovement of the first -said means substantially to close communication Ibetween said Vconnect-ions vfor restricting fluidv flow through said. conduit inltosaid chamber,`means operative to close said conduit -ai-terl said rst saidineans has communication between i for preventing-any return flbw'of fluid vfrom said chamberl to either of saidconnections', and means for lrendering the'last said-.means inoperative, the second and thi-rd same sense. f d

8. In a 'valve Aofthe :character-described having achainber: and a valveoperating piston in the chamber,said piston having a convduit therethrough Ycommunicating between the interior of the chamber and with water inlet vand outlet connections ,of the valve, a pair of valve seats in said conduit oppositely directedV relative to fluid flow through the conduit, gravity operated valvenieinbers cooperative witlivsaid seats for preventing fluid flowthrough said conduit in one direction andfrestricting fluid flow therethrough in the opposite direction, and means for'rendering said gravity operated valves inoperative to prevent fluid flow through said conduit in t-he first said direction.

9. In a flush valve of the character described, means providing two fiuid chambers, one of the chambers havinga port communicating with a place of fiuid discharge and a source of fluid supply, the second fluid chamber communicating with the first said chamber through a second port, gravity operated check valves for preventing the free fluid flow in either direction through said ports, means providing a -fiuid bleed past one of said check valves when it closes its `port, the said check valve past which the fluid bleed is provided being inoperative niaterially to effect fluid flow through its port in the opposite direction, and means for rendering the other said check valve closing the other said port inoperative.

v 1 0. A valve of the class described, coin- ;saidjnieans being operative in tne ion v lllfi prising means providing a chamber having a water inlet and outlet near'and` below one,

end, reciprocal means operative in said chamber and movable between said water inlet end and an opposite end thereof for normally closing said inlet, a second chamber in and movable with saidfreciprocal means and having a passage adapted to communicate with said inlet when the second chamber is in one position and adapted to communicate with a water discharge connection when the second chamber is in another position, a passage providing communication between the second and-first said chambers, gravity operated non-floating valves controlling each o1c said passages and adapted to permit fluid to be relatively7 freely discharged from tli-e first said chamber through the second said chamber to said discharge connection upon movement of said reciprocal means to open said Vwater inlet and adapted to relatively reduce the rate of flow from said inlet through one of said passages on return of said reciprocal `means to inlet closing position, and means for moving said reciprocal means .to open said inlet.

Al1. A valve of the class described comprising a casing providing a storage chamber interior thereof and having an inlet for water near its lower end, a hollow reciprocal member operating in said casing and formed with a separate chamber at the top thereof,

said member having a passage establishing communication between its hollow interior and the said separate chamber, a gravity operated valve controlling said passage, a second passage. leading from said separate chamber to the chamber interior of said casing, a non-floating gravity operating valve controlling the second said passage, and manually operable means to displace the firstmentioned valve and cause said member to rise in sai'd casing above the said inlet.

.ond said passage 12. A valve of the class described compris- `ing a casing providing a storage chamber linterior thereor and having an inlet for water near its lower end, a hollow piston operating in said casing and formed with a` separate chamber at the topot the piston, said piston having a passage establishing communication between the hollow interior of the piston and the said separate chamber, a gravity closing valvecontrolling said passage, a second valve controlled passage leadying from said separate chamber to the storage chamber interior of said casing,- a non- Vfloating valve in said second passage, and a Aianually movable pin extending upwardly` through the bottom of the casing and adapted to displace Vthe irst-mention-ed valve and cause the piston to rise in the casing.

13. A valve of the class described comprising a casing having an inlet for water near its lower end, a hollow piston operating in said casing and y formed with a separate chamber at thetop of they piston, said piston having a passage establishing communication between the piston and the said chamber, a gravity closing valve controlling said passage, a second valve controlled passage leading Jfrom said chamber to the interior o'll said casing, the valve for controlling the secbeing also gravity operated, and a manually movable pin extending up- "vardly through the bottom of the'casing and adapted to displace the first-mentioned valve and cause the piston to rise'in the casing; together with a tube in the hollow piston surrounding said pin and slotted'at its klower end, the lower end of the piston having a hole for the iniiow and outflow of water.

In witness hereof I have aiiixed my signature. Y

VILLIAM SEARS .VHITE

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