US882740A - Fluid-controlled flushing-valve. - Google Patents

Description

PATENTED MAR. 24, 1903.

R. A. BROOKS.

FLUID CONTROLLED PLU'SHING VALVE.

APPLICATION FILED JUNE 4. 1906,

a SHEETS-311E131; 1.

1%. 882,740, PATENTED MAR. 24, 1908.

R. A. BROOKS.

FLUIDVGONTROLLED PLUSHING VALVE.

APPLICATION FILED JUNE 4. 1906.

3 SHEETS-SHEET 2.

PATENTED MAR. 24.

R. A. BROOKS.

FLUID CONTROLLED FLUSHING VALVE.

APPLICATION FILED JUNE 4. 1906.

3 SHEBTS-SBEET 3.

' 1m EEJIIlEl L IEEE ROBERT A. BROOKS.,OF CHICAGO, ILLINOIS.

I rnurn-coirrnonnnn FLUSIIING-VALVE.

Specification of Letters Patent.

Patented March 24, mos.

Application filed June 4, 1906. Serial No. 320,081.

To all whom it may concern;

Be it known that I, ROBERT A. BROOKS, a

' citizen of the United States, ands resident declare that the fol exact description of the same, reference 'be- '10 of the city of Chicago, infthe county of Cook and Sta-tc'of, Illinois, have'invented certain new and useful Im rovements in Fluid- Con-trolled Flushin elves; and I do hereby lowing is a full, clear, and

and

ing had tot e accompanying drawings.

t ereon,

to the letters of reference marked which form a part of this specification;

This invention relates to improvements in shing valves and more particularlyto that class of flushing valves set forth inmy'prior application for atent for improvements in flushing valves, October 26, 1905; Serial No. 284,543.

In the older types of flushing valves the.

ressureadjustment below four or five impossible hence sue to operate at -water ounds was di cult or valves did not 0 into 2 general use. Most of the fiushin va ves in use would workfairly {well wit medium pressures were it not that most valves for this purpose contain tortuous channels and passages usuallyof very small size and therefore likely to become clogged 'efiicienc hereinafter destribed' and trolled and in whic or stopped up by the deposit of sediment contained. in thewater, in consequence the of such arevery uncertain.

I The 0 ject of this invention is to afford a valve of the class described wherein the full 0 ening of the valve is insured independent of the water pressure exertedagainst the same and in which the closure 1s positive after a regulated flush and after fill.

It is also an object of the invention to construct the valve of few arts and to enable the parts when adjuste tobe rigidly held from unauthorized interference.

' It is alsoan important objectto -construct lar e orts, perfectly concoggin isim'possible.

Lastly it is an object of t einvention to the valve with means of a fluid other than that passing through the valve'and' to so inclose and contain said fluid as to prevent the loss 'byleakage or otherwise therefrom inwhatever position the valve may be laced.

The invention consists in t e matters more fully pointed out and"defined: in the appended claims.

high .or"

1 closed byineans of a 'Said sleeve as shown In the drawings: Figure 1 is a central vertical section of a device embodying my ingention showing the valves full closed.

1 fu y opened and with parts shown! in elevatlon. Fig. 3 is a top plan view of the valve; Fig. 4 is a section taken online 4-4 of Fig. 1. Fig. 5 is a section taken on line 5-5 of Fig. 4. Fig. 6 is a reduced bottom plan View of the piston. Fig. 7 is a section taken on. line .77 of Big-1 with parts removed.

As shown in the drawings: A indicates a casing which as shown is cylindric and constructed of cast metal or other suitable material and in the bottom ofwhich is connected as shown, a. vertical inlet ipe a and from the 'sidf) of said Casing abov t 6 center there; of opens a laterally directed outlet pl s elow -' inner sideof the flangedfand is provided at a :sligh tydis'tanoe" from the inner periphery with a downwardly opening groove concentric' therewith as indicated by b. in an upwardl projecting concentric flange on' theupper ace ofsaid seat is a sleeve B and fitted around the upper end of the same and bearing onthe upper externally threaded end of said casing is apacking washer b5 A flanged cap-A isthreaded on the upper end of the casing A and compresses said packing washer I) on said upper 'end of the casing and also by pressure on said sleeve B vforces said the shoulder or flange a afiording tight joints.

same is provided with relatively largehorizontally extended apertures through which the water in flushing is delivered into the .ortion'of "the casing above said shoulder or 2 is a similar view showing t evalves Threaded seat B downwardly on cylindric at the lower end of the 1 ange a which divides said? casing into an provided with an upwardly directed internally threaded flange a concentric therewith and in which is threaded a cylindric shell 6r housing 0 which at its upper end is cap C v Vertically slidable within said shell or housing is a cylindric fluid containin on D which as shown is provided with a close bottom d and at its topis provided with a cap at which is thread ed thereon, and which as shown presses a suitable packing washer (Z upon the upper edge of the cup and thereby seals a joint. Said cap (1 is provided with a central stuffing box or gland therethrough, through which extends a tubular stem, E which is internally threaded and the extremities of which are externally threaded. The upper end of said stem E is threaded through a nut e, which is loosely seated in a central aperture in the cap C, and threaded on the upper end of said stem and serving as a jam nut for the nut e is a cap nut e which also closes the end of the stem. Fitted for said cup to slide relatively of the same within the cup D and secured on the lower end of said stem E which is threaded therethrough is a piston E. Said piston is provided with a recess therein, open at its bottom and opening therethrough at its top in a restricted port or aperture and secured within the recess is a ball F, which serves as a closure for said port to prevent the oil or liquid with which the cup is filled, from flowing upwardly therethrough. Said tubular stem E at a point slightly above the piston is provided with a ertures or ports therethrough and threads within the stem and extending downwardly to partly close said parts if desired isa threaded rod 6 which when threaded inwardly serves to restrict said orts o ening through the stem and when t eade upwardly therein 0 ens the same. The up or end of said rod as shown is notched or engagement with a screw driver or other suitable tool for adjustment. A coiled spring E is engaged around said stem and bears upon the piston and against the ca or cover (1 for the cup and serves norma' 1y to hold the cup elevated; The cover (1 of the on is provided at one side of the center of t 1e same with an upwardly projecting externally threaded ')SS G and threaded thereon is the o crating stem or rod G, which projects throng a suitable aperture in the cap C and is provided at its u )per end with a push button 9 or other suitable actuating means. Threaded on the stem E, is an arm g which fits closely be neath the cover C and jams the nut e at the lower side of the same and is forkedat its outer end and engages partly around the opthe upper and larger portion comprises a piston I, fitting loosely in said sleeve B and is provided with a central enlarged passage extending therethrough and through its vertically ribbed or rooved stem 2', to afford a water assage ant through which the stem H exten s. At the lower end of said stem of the differential valve is a circular downwardly facin head I provided with a periph eral upward y directed flange I which fits in the aperture through said seat and as shown is provided'with a peripherally elongated but narrow aperture therethrough at one or more points and near its bottom. Below said flange said-stem is externally. threaded and the passage;therethrough is enlarged to afford a chamber and threaded on said lower end of said stem is a eripherally flanged nut i which bears a paciiing washer i upwardly against said downwardly facing head I and which closes, against said Seat B, when the valve is closed. Said nut i at its bottom is restricted or partly closed. Through the a erture theretlirough extends a ribbed spi er h, carried on the lower end of the stem H,=and above which is rovided a notched plate :or 'c'ollariz whic is adapted to bear againstthe inner face of said nut and forcethevalve downwardly to its open position. At the lower end of said stern and bearing against said spider h, is a vent valve comprisnn a packing washer h which closes against th e end of said nut and is held in placeby a jam nut h secured on the lower end of said stem H.

The operation is as follows: The spring E normally holds said cup elevated with the fluid therein above the piston E and inasmuch as the stem H is rigidly connected with the bottom of the cup the valve is obviously held closed thereby. When it is desired to open the valve the cup is forced downwardly by means of-the stem G, whereby the liquid in said on flows quickly throu h the iston downwardly and causes the bai said piston affording a free vent through the piston and ermitting the cup to move down' ward with ut little resistance. The downward movement of the cup obviously forces 5 the vent valve it open permitting the flush:

ing fluid to fiow u Wardly through the differential valve un er inlet pressure and to fill the chamber above the piston I. .This

being larger than the inlet valve 1 the valves are forced downwardly affording a nick o ening and the water from the inlet ows t rou h said seat into the sleeve B. It is desira is that the passage through the differential valve and the stem connectin thearts thereof should be relatively iarge.

r hould the water pressure be very sli ht as in-soine situations occurs gravity ai s the pressure in opening the valve and in any event should there be any tendency for the as m 40 lF to all to 110' the bottom or larger portion of the recess in the piston.

otherwise as it is valve to stick the notched collar 5 on the stem H, enga es within the nut i and the valve is force open manually.

The valve being open it is-desirable in regulating the flush to restrict the return flow of the fluid above the piston due to the upward movement of the cup carrying the valves therewith. It is obvious that the ball F, under such upward pressure seats to close the port through said piston so that the flow is limited entirely to that passing through the stem and possibly a slight leakage around The amount passing through the stem' is controlled by the inward or outward adjustment of the rod 6 thereby var ing the delivery through the ports in sai stem above the iston and in this way enabling thereturn fl dw to be regulated for a long or a short period as desired.

Obviously none of the fluid or oil within the cup D can be spilled in transportation or inclosed within the cup by its cover and obviously in consequenct evaporation cannot cause the same to become thickened through use. It follows that the valve when once assembled and adjusted is i I capable of working indefinitely ,without fur- I and third by the positive valve h ment of said cup and stem carries the valve otf when the therattention.

It'is evident that the valve must open and close entirel independent of the pressure same is insured. First, by t e di erential action of the'inlet pressure upon the piston I and the inlet valve I. Second by gravity as "the valve of necessity opens downward downward movement of the stem therethrough which forces the valve open should the same not have 0 ned as' the stem nears its downward limit oi movement. It is also'evident that the valve in closing can never hammer for the reason that the preliminary u ward movement-of the oil cup serves to c ose the vent and the continued upward moveupwardly slowly permitting the water above the piston I, the arger head of said differential valve, to escape to the outlet around said piston. the valve I approaches its seat the flange I cuts off the-major part ofthe flow and there is just sufficient passing through the slot or aperture in said flange to afford the afterfill and this is of course cut valve seats. Ward res'sure exerted thereon by the stem Han the tendency of the upwardly flowing water to the same is resisted still tov a certain extent -b should t ere -be any tendency whatever for said valve tolift suddenly from the vent valve, the pressure is instantl restored abovethe piston thus preventing ammerin Obviously while I have descri ed a cer tain mechanical constructionforthe valves and the connections between the same it is made Without varying The continued up.

the water above the piston I and evident that various detail changes may be from the principles of this invention.

I claim as my'invention:

1-. A valve of the class described embracing a casing having an inlet and an outlet pipe, a valve seat 1n the caslng, a diflerentlal closure for said seat, a vent valve in said closure adapted to be manually actuated preliminary.

to flushing, adapting inlet pressure and gravity to unseat the closure, a closed fluld containmg cup regulating the closure and means rigidly engaged to said cup and extending through the top of the casing for manual actuation.

2. A valve of the class described embracing a casing having an inlet and an outlet pipe, a seat in the casing, a diflerential closure for said seat, a valve controlled passage in the closure adapted to admit inlet pressure above the same, said closure adapted to be opened' by manual actuation and aided by gravity, inlet pressure and manually and .a closed movable fluid containing cup regulating the closure.

3. A valve'of the class described embracing a casing having an inlet and an outlet, a valve seat in the casing, a differential closure normally seated on said seat adapted to'be unseated by inlet pressure, ravity'and manually prior to flushing, a c osed movable cup containing a fluid and means through which the fluid passes to vary the rate of closing of said differential closure.-

4. A flushing valve of theclass described embracing a casing having an upwardly openi inlet and laterally opening outlet'pipe, an iiil bt valve closing with the pressure to close the inlet i e, a vent valve controlling the same, a w 0 ly closed fluid containing vessel,

a piston therein, one of the same movable relativeto the other, a stem connecting said movable element to open the vent valve and means for actuating said-movable element.

5. A flushing valve of the class described comprising a casing having an inletand an outlet, a valve seat in the casing, a closure therefor, 'manually operated means adapted ,when actuated to open the closure by manwholly-inclosed cup within the casing hav' a fluid therein, a free stem projecting thereinto, a piston'rigidly secured to the lower end of'the stem and means locking said stem and -ual actuation, gravityandinlet pressure a Y piston from rotation.

6. A flushing valve of the class described embracing a casin ,an inlet pipe opening upwardly into the fiottomthereof, an outlet pipe opening laterally therefrom, a valved partition dividing the casing below theoutlet, aninlet valve seated in said opening downwardly into th vent valve carried-on said inlet valve and also opening downwardly, a piston rigidly connected withthe inlet valve and ofgreater "12s partition and I einlet-pipe, a'

area-and exposed to inlet pressure from above, downwardly vhen thez'vent valve is opened, a closed fluid contain ng-cup above the valves;- a' piston therein, means for moving onerelativelyof the other, a stem connecting the movable element with the vent valve closure and one or more valves con-" trolling the flow through said-piston in the cup.

7. In a valve of the class described the combination with a casing havin aninlet' and an outlet of a closure adapt'e to afford and cut on communication between the same,. a tightly closed movable cup in the casing containing a fluid, a stufling box movable with the cup, a stem extending there- 3 through, means rigidly engaged to the, cup

for actuating the same, means secured to the stem in the cup dividing the cup into chambers and adapted tocontrol the rate of flow of fluid, from 'one chamber to the other and operative connections between the cup and closure whereby the movement of the closure is regulated by the movement of the cup. 25

valve is controlled. by the relative movement of said cup and the piston.

9. In a device of the class described'the combination with a valve of a closed fluid containing cup, a tubular stem extending into the cup having an aperture through the side thereof, a valved piston secured to the stem in the cup, a rod threaded into said stem adapted for adjustment to vary the amount of fluid admitted through the aperture in the stem, means integral with the cup adapted for connection with an actuation handle or steni, a lock adapted to prevent said piston from rotation and operative connections between the cup and valve.

10. In a device of the class described a movable wholly closed, regulating cup, a fluid filling ,the same, a rigidly fixed piston therein having a regulable port therethrough, a valve in the piston closing against upward pressure, means for regulating said port and a-lock holding said piston from rotation.

11 In a device of the class described regulating vmeans embracing a wholly closedvertically movable regulating cup, a'stufling box in the top thereof, a tubular steni extending therethrough and into the cup a head, a stern fitting in the cup, an adjustable rod threaded in the stem and regulating ports through the piston, means loosely supporting said stem and holding the same from rotation and man- 7 'ually operated means rigidlyengaged to the means rigidly engaged to t e closure to pro vide an after fill.

13. In a flushomet'eri the combination with a casing of an inlet and an outlet pipe therefor, a valve seat in said casing between said pipe, a diflerential valve closure adapted to seat thereon, means admitting inlet pressure to unseat the closure, manually actuated means adapted to engage the closure to aid inlet pressure in unseating the same a wholly closed fluid containing cup, a piston in said cup tl u h which the fluid in the cup flows, means selling the cup and piston from rotation and an apertured flange movable with said closure adapted to extend on opposite sides of the valve seat to provide an after fill.

14. In a flushometer the combination with a casing having an inlet and an outlet pipe, a removable valve seat in said casing, a removable sleeve holding the seat in place and having a plurality of apertures therein, a closure adapted to seat on said seat and having a passage therethrough, a stem extending through the passage, a valve thereon normally closing said passage, manual means for u'nseating said valve adapting inlet pressure to open the closure, means actuated by said stem adapted to manually open said closure to aid the inlet pressure and means automatically seating said closure.

15. In a device of the class described the combination with a casing having an inlet and an outlet pipe of a valve seat intermediate the same, a differential closure-therefor, a passage therethrough admitting inlet pressure above the closure to unseat the same, a stem extending through the passage, means movable with the stem adapted to force the closure open wholly inclosed means actuated by fluid other than the valve fluid to regulate the pdriod ol' unseating the valve closure and means connected to theclosure aflording an afterlill.

16. In a device of the class described the combination with a casing having an inlet and an outlet, a valve seat in the casing, a ditlerential closure therefor, a vent valve for said closure adapted to admit pressure to open the same, a. housing secured to the easing, a wholly closed .011 therein operatively connected to control tie rate of seating of the closure, said housing having communication with the external air both aboveand below the limits of movement of the cup, a

tubular stem extending into the cuphaving freely in one direction, a stem threaded in the tubular stem to regulate the flow of fluid through the aperture therein, a spring in the cup adapted to return the same to normal after each manual actuation and means inoutlet therefor,

tegral with the closure and movable there with to afford an afterfill.

17. In a device of the class described the combination with a casing having an inlet and an outlet of a valve seat in the casing, a differential closure therefor normally seated by inlet pressure, means admitting inlet pressure to the larger areaiof the closure,

manual means adapted to simultaneously contact the closure thereby o suing the closure by both inlet pressure and manually, a wholly inclosed fluid containing cup, a rigid piston therein, means rigidly engaged to the cup for manual actuation 1n starting the flush and operative connections between the cup and closure. 18. combination with a casing of an inlet and an a valve seat in the casing, a

closure therefor, a cup in the casing above the closure, V the same movable relatively of the other, a 30 a piston in said cup and one of stem engaged to the movable elementand 'rojecting through the closure having anenarged end adapted to engage theclosure to prove the same in one direction, manually operated means actuating the stem to force the enlarged end out of engagement with the closure and adapting the closure to be unseated by gravit means automatically seating the closure andmeans in the cup adapted to control the rate of seating' 19. In a device of the class described the combination with a casing having an inlet and an outlet pi e, a removable valve seat intermediate sai pipes, a closure adapted to seat thereon from beneath, a stem extending through the closure and into the inlet pi e, adapted to contact the closure to unseat the same, a cup rigidly connected to the stem, means automatically raising the cup and stem to seat the closure, an open chamber around the valve closure to provide an after fill and means in said cup through which fluid other. than inlet fluid passes to control the movement of the valve closure in one direction.

20. In a device of the class described the combination with a casing having an inlet and an outlet, a removable valve seat'therein, a sleeve rigidly holding the same in place provided with a pluralit of apertures opening-through the sides tiereof into the outlet, a differential closure seating on the removable seat, a passage therethrough, a

movable stem extending through saidpassaid stem to close the passage, a closure on n a deviceof the class described the seated, manually said automatically acting means adapting means connected with the stem sage, means connected with the stem adapted to be manually actuated to open the passage to admit inlet'pressure above the closure to closing the passage adapting the closure to be seated by inlet pressure.

21. In 'a device of the class described the combination with a casing of an inlet and an outlet pipe therefor, a removable valve seat in the casing, removable means holding the same in lace, a valve closure for said seat, a chain er therein,. a stem extending through the. closure and chamber, a on said stem in the chamber adapted when the stem is manually actuated to unseat the valve closure and a head on the end of "the stem adapted when the stem is automatically actuated same.

22. In a device ofthe class described the combination with a casing of an inlet and an outlet pipe therefor, aremovable valve seat in the casing, a closure therefor, a cyl- Which the upperpart of the closure moves to engage the closure to seat the.

unseat the valve and means automatically spider inder in the casing affording a chamber in said cylinder adapted to firmly hold the seat in place and apertured toafford communication with the outlet; means acting automatically'to seat said closure ind'e endently of inlet pressure and to firmly hold the same operated means actuating the closure to unseat by inlet pressure is low.

23. In a device of the class described the combination with a casing of an inlet and an outlet pi e therefor, a valve seat intermediate sai pipes, a differential closure,

gravity when the automatic means adapted to firmly seat and hold the same seated independently of inlet pressure, manually operated means actu ating the automatic seating means whereby gravity alone is utihzed to open the closure on low lnlet pressure, a whollyinclosed fluid containing cup movable above the closure, a packing box in the upper head of the cup,

a stem extending therethrough and a. rigid piston secured thereon through which the fluid in the cup seating.

24. In a device of the class described the combination with a casing of an inlet and an outlet ipe, a valve seat in said casing, a diiferentia closure ada ted to close the same, a closed movable flhid containing cup in the casing, a stem thereon projecting through the closure having an enlarged end adapted to contact the closure to force the same to its seat, automatic means raising the cup to seat the closure, a stem rigidly en gaged to the cup for actuating the same, thereby forcing the enlargement on said stem out of contact with the closure adapting gravity to unseat the. closure.

25. In a device .of the class described the passes to control the rate combination with acasing of an inlet and an outlet plpe therefor, a valve seat 1n the easmg, a closure therefor, a stem extending through the closure and above and below the movablerelatively thereof, a stem enga ed to the on and projecting through and eyond the ottom of the closure, an enlargement on said stem adapted to engage the end of the closure when moving in one direction .to seat the same, automatically operative means moving said stem in one direction, a stem rigidly engaged to the cup and adapted for manual actuation to move the aforesaid stem in the opposite directions and fluid in.

said cup to regulate the rate of seating of the closure.

2-7. In a device of the class described the combination with a casing of an inlet and'an' outlet pipe therefor, a valve seat intermedi-Q' ate the same, a closure therefor, means unseating the closure by inlet pressure and gravity, means automatically seating the closing independently of inlet pressure and fluid controlled means regulating the period of seating. I

28. In a device of theclass described the combination with a casing of an inlet and an outlet therefor, a valve seat in the casing, a

closure therefor having a passage therethrough, means unseatmg the closure and seating the same, a plurality of ways depend- .ing upon inlet pressure and comprising a stem extendin through said passage, an enlargement on t e end thereof adapted to contact the bottom of the valve when moving in one direction means on said stem adapted to *contact'th'e same when moving in an opposite direction, manually operated means for operating said stem in' one direction, a spring compressed thereby adapted to return said means tonormal and regulable means controllingnthe closing of the inlet.

29. a device of the class described the combination with a casing having an inlet and an outlet, a cylinder rigidly secured to the casing, a cup movable in the cylinder having a fluid therein, a seat in the casing, a chambered closurev therefor having a passage therethrough, a piston integral therewith, an apertured flange integral with the closure adapted to admit inlet fluid from'one. side of the seat to the other prior to seating of the closure, a stem rigidly engaged to the cup and extending into the casing, a spider on said stem in the chamber of the closure and an enlargement on the end of the stem adapted to close the passage through the closure.

30. In a device of the class described the combination With a casing of an inlet and an outlet therefor, a removable valve seat, a sleeve bearing against the top of the casing and firmly securing the seat in place and apertured to afford communication with the outlet, a closure for said seat having its upper part extending into the sleeve above the apertured portion, a vent valve in the closure, manually operated means for opening the vent valve adapting inlet pressure to act on the top of the closure in the sleeve to unseat the closure and inlet pressure adapted to seat the closure and means acting independently of inlet pressure to unseat and seat the closure.

31. In a device of the class described the combination with a casing of an inlet and an outlet pipe therefor, a valve seat in the casing, a sleeve rigidly secured thereto al fording a chamber within the casing and apertured near the lower end to afford com- .munication between the same andoutlet, a

chambered closure adapted to seat thereon having a passage therethrough, a fluid containing cup above the closure, a stem rigidly engaged thereto projecting through the passage in the closure and said chamber, means secured on the stem in the chamber adapted to contact the closure to aid in unseating the same and a valve on the stem-beneath the closure to close the passage therethrough.

In testimony whereof I have hereunto subscribed my name in the presence of two subscribing witnesses. 4

ROBERT A. IE5ROOIIS. Witnesses:

W. IV. WITHENBURY, WM. 0. SMITH.

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