US1331706A - Hydraulically-operated flushing-valve mechanism - Google Patents

Description

P. HAAS.

HYDRAULICALLY OPERATED FLUSHING VALVE MECHANISM.

APPLICATION FILED AUG.I9, 1919.

4 SHEETS-SHEET l.

P. HAAS.

HYDRAULICALLY OPERATED FLUSHING VALVE MECHANISM.

APPLICATION FILED AUG-19,1919.

1,33 1,706. Patented Feb. 24, 19:20. I b a 4 SHEETSSHEET 2.

'6 /6 I 7; "II-:1: viz M Liz "XL/1', I!" I6 I 6 4i m 55 A 54 2 g 27 P. HAAS. HYURAULICALLY OPERMED FLUSHING VALVE MECHANISM.

' APPLlCATlON FILED AUG.19.I9I9. 1,331,706.

Patented Feb. 2&1, 1920.

4 SHEETS-SHEET 3.

P. HAAS.

HYDRAULICALLY OPERATED- FLUSHING VALVE MECHANISM;

APPLICATION FILED AUG-19. 1919.

1,331,706. Patented Feb. 24,1920.

4 SHEETS$HEET 4.

I #r' rritrr. HAAs', r- DAYTON, OHIO- YnnAu-LIcAnLY-or'nrmmnResume-VALVE MECHANISM.

Be it known that I, PiirL'irlHAAs, citizen of the United States 're sidin at'Da ton in declare the water is, avaihble making lt'possible.

without it the valve mechanism would notf as heretofore constructed. f

hydraulic ally op; has therefore been and the same is ing descriptionandclaims. I I

Myinvention relates particularlyto hydraulically operated fli.1shing valves for water closets inwhich theopening and closf ,tion, the production ofan after fil I closet bowl, and the final closing of the .flushbeing effected in proper sethe several parts of the valve mechanism detached from each other,ifor"greater clear; .nessof illustration.

' Fig. 8 is a vertical sectional view of the The object of my presen the. county. of Montgomery and State ifof Ohio, have invented certain new and {use Improvements in Hydraulically-Operated Flu slung-Valve Mechanism; and I do hereby f following to bea full, clear, and

exact description ofthefinvention, such as will enable others it appertains to make and use-the. same;

My invention consists in the novel feaitures hereinafter described, reference'being had to the accompanying drawings, which 15.

illustrate .anembodiment of "the invention selected by inc for purposes of-illustratiomf fully disclosed in the follow ing of the flushing valve mechanism is. effected water pressure. ,This, typ'e wof valve mechanism, has

to the greatest advantage in buildings where a very high pressure and large volume of for flushing purposes:- to dispense with Sflush tanks, and effecting the opening and closing of the valve by the pressure of the water,

the opening of the valve the flushing ing valve, all

quence'by the action of the water pressure 7 Without aid or interference by the operator, who merely startsthe cycle of operation by )ress'in a-button or. otherwise. It has been supply pipes are of small 'diameterjsuch, as

have beencommonly furnished in'the ordi- I I p I form of cap show ng a dl-fl'erent means for nary private house, and where the pressure of water in the main is comparatively low, for the reason that the required volume of water and the required pressure of this large volume of water wasfnot available, and

buildings, and their use in private dwellings has been negligible. I, i

invention is to Specification of Letters rat-em;

provide fvalvemechanism adapted especially "lation contal vention.

g is a frontelevation of my improved. valve mechanism showing the auxiliary cut elf cockconnected therewith; heretofore been .used ,j

operacated' by the and 6.- v

' a hydra for use in private houses and other buildings in which the watersup'ply conveyed by com- -paratively small pipes, for example, as small as indiameter, andin which it maybe supplied] at conipar atively low pressure, to the, end that. the useof thisv type of valve mechafnism' may skilled in theart to which large'class of private dwellings and to secure the accurate predetermined operation be 'jextended to. the very "of the valve mechanism under all working conditions with thesame or greater eliiciency thanis now obtained in allinstallations in 'which the larger'supply pipes and higher I pressures'are available.

' "Inthe" accompanying drawings,

' Figure 1 i represents a water loset instal "ng. an embodiment oflmy in- Fig.3 is a central vertical section through the valve mechanism. p Fig. 4 is a vertical section on the line H "of Fig. 3. I

Fig. 5 is afr'ont elevation ofthe main body of the valve mechanism, with the front V Patented Feb. '24, 1920. AbpnEau a fi lefif Au gust 1 1 919. Serial nojsias a' r l UNITEDSTATESPATENT0FF1CE- lically foperated flushing I cover, diaphragm, and flushing valve removed therefrom.

Fig. 6 represents a horizontal section on theiline 6- 6 ofFig. 3. Fig. 7 is a detail perspective view showing valve mechanism taken 'on the plane indidotted line S g-'8 lII L'FigS. 5

Fig; 9 is a sectional View of a modified actuating the relief valve.

erably made of cast metal is provided on its? front face with a circular flange for dome shape,

4, and a vertical transverse wall or partition t he latterbe-ingprovided witha circular opening '6 surrounded on'the outer face of the'wall 5 by a valve seat 7; The valvev v in the drawings, .1 represents the main Y body of the valve mechanismwhi'ch is pref 7 body is also provided with an annular in- V clined sloping flange portion 8 forming 'an' inclined shoulder or support fortheflexible I diaphragm, hereinafter described. A comparatively narrow chamber 9 isformd between the vertical wall?) and'the annular j'fla'nge or shoulder 8, andcommunicateS below the wall 1 with aylargerchamber 10,

' wl1ich I term -the flushing'chamber, the

valve body being provided at its lowerend k withaflushingja erture.11, .of large diam- 'eter, adapted to e connected to the closet bowl. InQthis instancefI havefshown the lower end of the chamber provided. with a s in YlVithin the horizontaland vertical parti v 1310118 land '5 1s:formed a second chamber.

"ber, separated-from the: flushing chamber by said walls, butconinninicating therewith Fig. 1.

threaded nipple 12 for the attaclnnent of the V pipe 13,Jindicated in. Fig; 1, and leading ito theclosetb'owl 14W of any usual ordesired construction.

15 which Itermtheniain water inlet cham through the opening 6 and. passage 9,"wh en the flushing valve is open. .The" valve body p .is also provided with an outlet aperture,'alsor of large diameter,communicating with the i'vatehinlet chamber 15, and'adaptedlo be connected to a closed tank 18 showngin, 2' In some instancesthis jtank is 10-' catedin rear ofthe'wall or partition adjavenience I therefore cent to which the bowl is' 'inst,alled,iwhere ill isconcealed'from view, as shown 1n F1gr l, and some instances it may be. necessaryto have the-tank supported onthe' outer tures,"as indicated at 16and 16* inthe draw- 2 ;.per face thereof, one of which is closed by a plug] as indicated at 16?, while the other. is .Qconnected by pipe 17 with the tank ,18, as shown in Fig. 1. WVithin' thehchamber 15.

. or. communicating therewith, an auxiliary water inlet, chamber 20 of comparatively small size, and formed inany desired man ner, inthis instance, the inain bodyof they valve'being provided with a .boss 19 extending transversely acrossthe rear portion .of the body, above the horizontal partition 4, V vwithin which the auxiliary inlet chamber 20'v is formed, by coring'saidboss or by boring I the same: orinany other-desired way. In .prefer to bore or. drill entirelythrough this 1 boss from. one. sideof the valve casing to ,2, the other,.and to counterbore the same at teriorly threaded to receive "the water, sup- .plypipe 70, which. may be as Small-asE" in diameter, for example, which pliesi'all' the water for flushing purposes,

the opposite endof the aperture in the boss T hich may be cated threaded aperture 21 which'receives 'ner end with the point .sufli ciently removed from its inner,

.andthroughthe centralaperture formed at the inner edge of thefinclined annular shoul- 'der 8.}

which engage the annular of the valve body, by anannular flange portion 26 on the cap 1 9 being internally threaded, and closed by V 1 anfladjustable plug 100, which isqprovided.

withaQnotchat its outer'end, in order that it may be operated from the outside'of the valve body, To insure against leakage, I preferably provide the outer end of this threaded aperture with a closing plug 101 g p The front face of the boss '19 i's'also provided with disand washer, 102 as shown.

charge aperture 20 for the auxiliary water inlet chamber2'0," which is always. 111 cominunicationwiththe main inlet chamber 15, 'andthe tank'18. The plug 100 is so a1- rangedthat by: adjusting it longitudinally of its threadedaperture, itwill throttle the extentlj, g I The'front' face of the boss '19 within the. valve body is provided with a centrally lothe threaded inner end of a hollow transfer tube 22, preferably closed at its outer end, i and prov1ded '.with a solid extension 22 ,the' outer end of whichis threaded, the said, transferring tube communicating at its inauxiliary water chamber 20, and being providedwith a laterally arrangeddischarge aperture 24 located at a end to communicate with the back pressure chamber of ffthe valve mechanism, hereinafter described, the'said tube extending concentri'cally through the flushing aperture .25 represents a flexiblediaphragm pref eraibl'y of rubber the marginalportions of flange portion 2 r and are held in position 3, which is provided with an angular flange portion 27 to inclose the peripheral edges of the flange '2fof the valve body, providing 1 a'neat fi nish to the valve mechanism. The

cap orfcover 3 maybe held inposition'w-ith -respect to the main body of. the valve in anydesired ,way. In this instance I have shownit secured in position. by retaining means engaging the outer endofthe transand is provided with asecuring'nut 28 and washer 28?. I prefer this construction, as it dispenses with the V screws. or bolts and enahl'es me to secure a perfectly smooth finish, which contributes fertube 22, which extendsthrough the cap to keeping the valve mechanism. at all times in a clean and sanitary condition. 1 Within fthecap or cover 3 is formed a,chamber 29" one end,,to form a recess 51, whlch is 111- which Itermthe pressurejcham ber, onewall ofwhich is formed -by the diaphragm 25', andjinthis pressure chan' ber,vvate'rv is acdischarge aperture 20 'to' a'greater or less use of ;'a number. of

brelieffpassage controlled byareliefvalve 38 operable fromthe outside of the valve mechanism by means handle.

7 cate s with 'a short tubular nipple 35 eX= and leading into the env bodycommunicating with the bowl so that when water 1n the pressure chamber may flow out into the enlarged'fiushing chamber where it will not encounter, any back pressure against it, and thus enablingthe pressure chamber .to be instantly relieved to permit. of the quick and full opening of the flushing valve. The flushing valveproperis carried by the d1aphragm25 and consists ofarubber ring 42 which engagesthe valve seat 7 and is preferably carried in amet'al' shell 43 engagmg the lnner faceof thediaphragm, and

l held in [position byja sleeve 4A, extending through apertures in the: diaphragm, shell,

-and valve, provided .with a flange on the I an easy fit, and

outer face of the diaphragm, and havin on its innerzend a threaded portion,engaged by nut 45 :and washer, for holding the valve and shell in proper position Wltll respect to the diaphragm. When the valve is in closed position, as shown in Figs; 3, andj'6,

for example, the shell :43 extendsthrough the central aperture at thev inner ed e of the inclined shoulder 8, which Qshoul ertends to support thediaphragm and .from imurious distortion.- -The. sleeve 44 is prevent it provided with a central aperture which loosely fits around the transfer tube .22,with

of the transfer tube is so located thatit will be uncovered'when the valve isv in, closed position,

the pressure chamber, but will becovered i by thesleeveH when the valveis in open position, andluntil' the valve-is within ashort distance of] its-v closing position, therea by throttling the discharge of water from the aperture 24 which ,must;pass through the annular spacebetween the tube 22 andsleeve 44. The annular space-between the tube 2-2 and; sleeve 44: forms a, constant communication between the inlet chamber and the back pressure chamber, whether the 1 flushing valve is open or closed.

Tater is supplied to the val'v e bymeans of the pipe 7 1n which I locate an, auxiliary cut off valve 71,; see Figs 1 and 2-, i1-1 orderv thatthe water supply] may be out off entirely --for the .purposeof'cleaning, adjusting or inspectlng the valvemechanislu, and also for Iurtherpurposes hereinafter described. The

water "is admitted through ja pipe of small diameter, and is further throttled down by of afpush button 39, or any other. form of actuating mechanism which maybe foundj'convenient, as a'pivoted he relief, assage 34 communitube 22, and through the annular space the, reliefvalve is opened, the

' greater area, than and flowing up into the tank ,"ing in-tlre tank therein, until the air pressure, per

inch equals main supply water ceases.

the .thereby establishing V V i the pressure, chamber and the flushing discharge aperture 11, when the accumulated pressure the tank acting on the face of' the flushing valve,

the discharge aperture 1 24 so as to communicatedirect ly. with l thorough' flushin ;the pressure in; tieinlet chamber re- 'duced by 'the opening of the flushing valve, wateragain begins vto 'thefact that the auxiliary-inlet chamber ismade preferably of smaller diameter than the pipe itself her; The water passesgfrom the discharge aperture 20 20 into thef na in inlet eliai'nberlfi, and isagain thiz'ottled by the small size of the ills charge" aperture 20, of the water to pass through-the transverse tween the' tubeQQ and sleeve 44:, into the so that there shall beno loss 'ofpressuie wlthin the auxlliary lnlet chamthus forcing a port on,

of the auXiliarywater chamber 7 pressure chamber? 29,, no matter how low thepressure 1n the main may be, thus filling the pressure chamber and buildingv up a 1 pressure therein,

which acts upon the dia the diaphragm is of much the flushing valve, the said valv'e will be forced into closed position,

phragm 25, and as shutting ofi communication between the inlet chamber 15 and the flushingdiseharge aperture 11.,-

The Avater continues to, flow into the inlet chamber 15,;filling'the' same p 18, soon as the flushingvalve is closed, and :accumulat 18, compressingjthe air the pressure of. the water pipe 70, when the inflow of V I To efiiecttheflushing opera-l tion ',-ft is only necessary-for the operator square 1n the. f

to actuate the. relief valve 38 by meansv of,

willforce the valve to open to itsfullest extent, and'byi means of v, the large apertures 1a largevolumeof lwaterrapidly to the bowl 14 for'flushin-g purposes,

16, 6, and 11,,will deliver;

umethan could be passed in the same length timeithrough the main 70,;and effect a of the bowl. As soon as fromthe main 7 0, the incoming-water join ing in the flushing action,

while a part of {the same will be transferred from the auiriliary inlet-chamber 20 through the transfer aperture 24, and between the tube-22 and sleeve 4%, into the back-pressurechamber,

I the. relief valvej38 having in the mean time been closedby releasing thepush button or The flushing acrapidly until push button-39, or other actuating means, j

commun cation between 1 V amuch larger vol-' flow into the valve Ztube122, and seeping slowly through the checked by -thepartial closing of the (valve,

after which the valve will close more slowly,

permitting a portion the incoming; water ,or water frointhe tank to trickle through I the outlet 6 to the bowl 14, to effect what is termed. the after fill, and insuring the bowl and water seal receiving the necessary.

amount ofwater in the flushing action, and

the closing action of the valve will continue "slowly as'the' pressure builds up in the presthatlthe flushing valve itself is operated entirely by hydraulic means and thereforecam sure chamber 29, until the valve 42 is almost seated, at which time the outlet aperture 24 of the transfer tube'22 will be'uncovered by the sleeve 44, permitting the water to be transferred more rapidly into'the pressure chamber, to insure the final seating of the valve. The uncovering of the outlet aperture'QL of the transfer tube 22 beforethe valve is completely seated, effects a quick and positive final closing of the valve, and obviates the hissing noise frequently made in the final-throttling action of avalve in clos- 'in'g off a supply of water'and also prevents thewear of the valve occasioned by the seeping of water past the same whereits final tion offlushing, and the parts return to the normal position, indicated in'the drawings, and remain'in this position until the'valve mechanism is again operated. It will be seen not'beiinjured or interfered with by the'operator, who can only actuate the relief valve of the pressure chamber.

It will be 'seen'that by adjusting the plug p 10 0 hereinbefore, described, the discharge aperture of the auxiliary'inlet chamber 1 I l v closing movement 1 of the valve sufiiclently 5 to allow the after fill toibe' ao complishcd' without in any way interfering Withthe 20 can bevariably throttled, thereby insur- I ing the transfer of waterthrough the transfer tubei22 to the pressure chamber at all times, even though the pressure in the main may be somewhat reduced, and n practice this throttling device can be so adjusted'as to further controlthe duration of the flusha ing, as obviously the greater. the extent towhich the aperture 20 is closed, Ithe'more rapidly the water will be transferred to the pressure chamber through the 'transfer'tube 22, and the more 'qui'cklythe flushing valve will be Closed. It will also beseen that the adjustment of the plug 100 can be readily efie'cted'fr'om-the exterior of the valve casing removing theclosing plug 101 without disassembling the valve or interfering with its operation. It is desirable that the flushing valve shall perform the first portion'of its closing movement more or less -apidlyfand"then perform'the next portion of its closingrmovement sl0wly,]in order to allow 'suflicient water to'p'ass slowly to the "bowl, thefiushi'ng operation, to refill the bowland water seal, so that the valve shallbe firmly and positively givenits final.

:thewater main, the flushing valve may be "forced to its seat toorapidlygto allow the ."beer 9,:andthence'with the flushingchamber 10, This by-pass allows water entering "from the mainbefore entering the, auxil- .iary inlet chamberinwhich" it is slightly throttled, to pass to the opening 81,[and

' setting up 'a slight I I'nsteadof-usinga push button to of the auxiliary inlet chamber 20-is throtftled by the plug 100 to the required extent,

to insure the proper'duration of;fiush, and the positive closing'ofthe valve under all conditions of pressure, even: though water. may be turned on at another faucet, 01" at other points in the building connected with necessary time for the after "fill. lnorder to'prevent this, Ipreferto' 'provide abypass extending from the'recess 51 to an aperture 81 inithe'an'nularflange 8 beneath s0 fthe dia hragm, and extending in this instance t rough a'boss 82 and to provide in said flange one or more openings83 (two being shown) in said flange, adjacent to the opening :81 communicating with the chaindi'scharge through d the apertures 83,- thus 7 ressure i on 'theij'diaphragm when the flus ing valve has' nearly breached its closing position in opposition to the pressure in the'pressure chamber,- as

the diaphragm tends to"cover the aperture- 81, fthusjt'endi'ng to slightly retard the seatingof the valve, until the final accumulation of water jinthe'pressure chamber after the: uncovering of the aperture '24Qin' the transfertube', finally closes; the valve: and presses the diaphragm upon and 'o'ver'fthe aperture 81, closing it: also. I find that this by pass 'is'very' efiicient in 'retardin "the positive and certain closin'gof-the flushing valve after the discharge aperture24c'in the transfer" tube hasbeen' uncovered as before described.-

"The apparatus herein describe dais so constructed I and designed that it may be read 'ily installed in any dwelling and adjusted to the' pressure and volume of the available which are frequent dwelling'houses having' service pipes iof small diameter'and b 7 moderate pressures, and due to: the "openingof faucets or other use" of water atother points in the mains actuate the relief valve I .mayemploy a" lever or handle sis-indicated in Fig 9,;in which 3 'representsfia slightly modified form of cap containing tl e pressure chan'iber '29? and 7 provided with the relief'valve 38 and passage 35f to communicate with the discharge chamber 10 of the valveas. heretofore de lscribed. In Fig; 9 "I have showna movable,

actuating lever 39f havin a "disk-portion 1 10 atits inner endengaglng a disk 14:1,on

a part connected withthe valve-stem and held in normallyfretracted positionbya spring 142, said part being provided with a washer 143 to prevent leakage and the parts being held in assembledposition by the sleeve nut 14A. Obviously a movement of the handle 39 in any direction will cause the disk 140 to elevate the 'disk- 141 and open the valve. The cap 3 may belprovided with a central aperture 145 to re ceive the threadedouter end of the transa vided with a tank aperture of relatively large area, a flushing discharge aperture of correspondingly large area, a flushing valve interposed between said tank aperture and flushing discharge aperture, a pressure chamber for closing said valveand holding it in closed position, a relief valvejforfsaid pressure chamber, said valve" body being .providedwlth a Waterinlet passage of relatively small area, andan inlet chamber. communicating therewith'and having a reduced discharge aperture at all times incommunication with the tank aperture, and a comnumicating passage of small areaand ca,-'

paeity extending from said inlet--chainber to the pressure chamber. whereby the restricted discharge outlet for thei-nlet chams l-erinsures at all times and under all cons ditionsot pressure, a supply of-ivater tothe pressure chamber, toeflect the 'closingof' the flushing valve, and tohold it normally ,1 provided with a water inlet passage of rela-' r b ed.

2. In ahydraulically operated flushing valve the combination ofa valvebody provided with a tank aperture of relatively large area, a flushing discharge aperture of correspondingly large area, a flushing valve 7 interposed between said tank aperture-and flushing discharge aperture, pressure, chamber for closing said valve and holding it in closed position, a relief valve forsaidz pressure chamber, said valve bodyubeing provided with a Water inlet passage ofrelae tively small area, and an inlet chamber communicating therewith and havingv a reduced discharge aperture at all times in communication with the tank'aperture, and a communicating passage ofsmall' area and capacity extending from said inlet chamber to the pressure chamber, 'Wherebythe restricted discharge outlet for the inlet chaml a nut and ber'insures at all times and under all con ditionsof pressure, a supply of water to the pressure chamber, toefiect'the closing of'theflushing valve, and to hold it normally. closed, andthrottling meansifor partially: closing the discharge aperture' of the :inlet chamber to cause the water. to'pass.'more .7 readily to the pressure chamber.-

, 3; In a hydraulically operated: flushing.

valvethe combination of a valve body provided with a" tank aperture of relatively large area, a flushing discharge aperture of' 'correspondlngly large area, a flushing valve interposed between said tank aperture and flushing discharge aperture, a pressure chamberior closing said valve and holding r it in closed position, a relief valve for said a pressure ,chamber, said valve body being 7 tively small area, and an inlet chamber comcation with the tank aperture,, anda comprovided'with a water inlet passage of relav municating passage of smallarea and capacity extending from, said inlet chamber to the pressure chamber, whereby the restricted dischargeoutlet for the inlet chamber ina sures at "all times under-all conditions ofpressure, a supply of water to the pres sure chamber, to effect the closing of the flushing valve, and to' hold it "normally closed, and an adjustable throttling device for partially closingito agreater or less,

' extent, the discharge aperture of the-said inlet chamber. v a

4. In a hydraulically operated flushing valve the. combination of a valvebody provided with a tank aperture of relatively {large area; a flushing discharge aperture of correspondingly large area, a flushing valve interposed between said tank aperture and flushing discharge aperture, a pressure chamber forclosing said valve and holding it in closed positioma relief valve for said pressure chamber, said valve body being tively'small area, and an inlet chamber com- .municating therewith andhaving a reduced discharge aperture at all times in communicatlon with tlie'tank aperture, and a c0mmunicating passage of small area and cav pacity extending from said inlet chamber pressure 1chan1ber, to effect the closing of the flushing valve,;and to hold it normally closed, and an adjustable throttling device operable from the exterior of the valve body f partially closing to agreater or less exe tent the discharge apertureof said inlet chamber. i

-5. In a hydraulically operated flushing valve the combination of a valve body pro vided withi-a tank" aperture of relatively large area,"a flushing discharge aperture of correspondingly la'rgearea,a flushing valve interposed between said tank aperture'and flushing discharge aperture, a pressure chamber-for closing saidvalve and holding it" in closed position, a relief valve for said pressure chamber, said valve body being providediwith awater-inlet passage of rela'-' tively small area, and an inlet chamber communi'cating therewith and having a reduced discharge aperture at all times in communicationwithfthe tank aperture, and a communicating-passage of small area and, ca-

pacityextending from saidinlet chamber to" the pressure chamber, whereby the restricteddischarge outlet for the inlet chamber insures at all times and under all conditions of .pressure,:aj supply of water to the pres-j sureichamber to effect the closing of the flushing valve", and to hold it normally closed, said valve body being provided with a threaded passage extending from said discharge aperture of the inlet chamber to the exteriorof the valve'body, and a throttling" screw located in said'pass'age for throttling area, a flushing discharge aperture of cor-i respondingly large area, a normally closed "flushing valve interposed between the tank aperture and flushing discharge aperture, a pressure'chamber for closing said valve and holding 'itin closed position and a relief valve for s'aid pressure chamber, ofan inlet chamber within the main body, having a dischargeaperture of small area in communication with the tank: aperture at all .times', a transfer:tube connected with said inlet chamber, said transfer'tube extending into the pressure chamber and being provided-with a discharge aperture communi catingtherewith, for diverting a part of the incoming water to thepressure chamber, said-valve body having a water inlet passage communicating only with said inlet chamber;

7 In, "a hydraulically operated flushing valve mechanism of the kind described, the combination with a valve bodyprovided with-a tank aperture of relatively large area, a flushing discharge apertureof correspon'dinglylarge:area, a normally closed flushing ivalve interposed between the tank aperture and flushing dischargeaperture, a

pressure chamber for closing said valve and, holding/it in closed position and a relief valvefor said'pressure chamber, of an inlet chamber within the main body, having a discharge aperture offsmall area in communication with. the tank vaperture at all inlet chambery'said transfer tube extending through and having a"sliding engagement 7 "times a tran'sfer tube connectedwith said with-an aperture in sa-id; fl ushing'valv'e, and 7 being providedwith a discharge aperture in communication withjthejpressure chamber.

8,111 a hydraulically operated flushing valve mechanism of the kind described, the combination with "a 'valve body provided with a tank aperture of relatively large area, a fiushingdischarge' aperture of correspondinglylarge area, a normally closed flushing valve interposed between the tank aperture and flushing dischargeaperture, a

1pressure chamber 'for closing said'valve and oldmg it 1n closed position, and a relief valve for saidpressure-chamber,of an inlet chamber within the main body, having a discharge aperture of small "area 7 in ,com-

munication with "the tank aperture at all times, a transfer 'tube connected with said inlet chamber, said transfer tube extending through and having a slidingj'engagement with anapertu're in said flushing valve, and" having alaterally disposed discharge aperture, incommunication with said pressure chamber, normally uncovered when; the said valve is in'closed position,-and-so located as to be coyered by the said valve when the latter'is in open position, to restrict the flow of water to-the pressure chamber.

In a hydraulically operated flushing valve-mechanism of the kind described, the

combination with a valve body provided with" a tank aperture of relatively large area, a flushing discharge aperture of cor respondingly large-area, a normally closed flushing valve interposed between the tank aperture 5 and flushing discharge aperture, a

pressure chamber for closing said valve and holding 'it in closed position and a relief valve for said pressure chamber, of an inlet discharge aperture 7 of small area-in communication with the tank aperture at all times, a transfer tube connected with said inlet chamber," said transfer tube extending into the 1 pressure chamber and being provided with a dischargeaperture communicating therewith, for'dive'rting a part of the incoming water to 'the pressure chamber,

chamber within the main body, having a 7 said valvebodyliaving a waterinlet passage communicating only with said inlet chamber, and means for throttling j-the discharge aperture" of the said water inlet chamber to facilitate the passage of water through the*-transfer tube to the pressure chamber.

10. In a hydraulically operated; flushing valve'mechanism of the kind described, the combination" with a valve body provided with a tank aperture of relatively large area, a flushing discharge aperture of corre- 'spondingly large area,'a normally closed flushing valve interposedbetween the tank y for throttling the discharge aperture of the lZO aperture and flushing discharge aperture, a pressure chamber, for Closing said valveand holding it in closed position, and ajrelief valve for said pressure chamber, of an inlet chamber within the main body, having a discharge aperture of small area in, communication with the tank aperture at all times, a transfer tube extending through and having a sliding engagement with an aperture in said flushing valve, and'having alaterally disposed discharge aperture, in communication with said pressure chamber, normally uncovered when the said valve is in closed position, andso located as to be covered by the said valve when the latter is in open position, to restrict the flow of water to the pressure chamber, and means said inlet chamber.

11. In a hydraulically operated flushing valve mechanism of, the kind described, the

combination with a valve body provided with a tank aperture of relatively large area, a flushing discharge aperture of correspondingly large area, a normally closed flushing valve interposed between the tank aperture and flushing discharge aperture, a pressure chamber for closing said. valve and holdmg it m closed positlon, and a relief valve for said pressure chamber, of an inlet chamber within the main body, having a dlscharge aperture of small area in communication with the-tank aperture at all times, a transfer tube connected with said mlet chamber, said transfer tube extending into the pressure chamber and being pro-' vided with a discharge aperture communieating therewith, for diverting apart of the incoming water. to the pressure chamber,

said valve body having ajwater inlet passage communicating only with said inlet chamber, and an adjustable device for variably throttling the discharge aperture of the said water inlet chamber.

12.111 a hydraulically operated flush valve mechanism oithe kind described, the a combination with a-valve body provided with a tank aperture of relatively large area,

a flushing discharge aperture of correspondingly large area, a normally closed flushing valve'interposed between the tank aperture and flushing discharge aperture, a pressure chamber for closing said valve and holding it, in closed position, and a relief valve for said pressure chamber, of an inlet chamber within the main body, having a discharge aperture of small area in communication with the tank aperture at all times, a transfer tube connected with said inletchamber, sa d transfer tube extendlng througlrand having a sllding engagement with an aperture in saidflushing valve, and having a laterally disposed discharge aperture, in communication with said pressure chamber, normally uncovered when the said valve is is in open position, to restrict water to the pressurechamber, and an advin closed position, and so. located as to be H said valve when the latter covered by the the flow of justable device for variably throttling the discharge aperture of the said 'inletchamber,

13. In a hydraulically operated flushing 2 valvemechanism of the kind described, the

combination with a vvalve body provided with a tank aperture, of relatively large area, a flushing discharge aperture of cone spondingly large area, a normally closed flushing valve interposed between the tank aperture and flushing discharge aperture, a ressure chamber for closing said valve and holdin it in closed position, and a relief valve or said pressure chamber, of'an inlet chamber within the main body, having a discharge aperture of small area in" communicationwith, the tank aperture at all times, a transfer tube connected'with said inlet chamber, said transfer tube extending into the pressure chamber and being provided with a discharge aperture communieating therewith, for diverting a part of the t r incoming water tof the pressure chamber,

said valve body having a Waterinletpassage communicating only with said inlet chamber, an ad ustable device for variably throttling thedischarge aperture of said inlet f chamber, and means permitting the adjust ment of said adjustable throttling device from the exterior of the valve body without disassembling the parts of the valve mechanism or interfering with theoperation thereof. i i y 14. In a hydraulically operated flushing valve mechanism of the kinddescribed, the

combination with a valve body rovided with a tank aperture, of relative y large area, a flushing discharge aperture of correinlet chamber, said transfer tube extending.

"through and having a sliding engagement w th an aperture 111 sa d flushing valve, and

having a laterally disposed discharge aperture,,1n communication with said pressure l chamber, normally uncovered when the said valve is in closed position, and so located as to be covered by the said valve when the latter is in open position to restrict the flow of water to the pressure, chamber, an auju s table l device for variably throttling the discharge aperture of said inlet chamber, and means permitting the adjustment of adjustable throttling device from the exterior of the valve body without disassembling the parts of the valve mechanism or interfering with, the operation thereof.

15. In a hydraulically operated flushing valve mechanism the combination with a valve body provided with a tank aperture of relatively large area, aflushing discharge aperture of correspondingly large area, a partition interposed between said apertures and provided with a flushing aperture of correspondingly large area, said main body having also apressure chamber and a flexible diaphragm forming one wall thereof, a

flushing valve carried by. said diaphragm for closing said flushing aperture, and holding the valve normally closed, and a relief valve for said pressure chamber, of a water inlet chamber provided with a dischar e aperture of relatively small diameter, in

communication with the tank aperture, and

flushing aperture, a transfer tube extending from the" said inlet chamber through an aperture in said valve into and having a discharge aperture in communication w1th the pressure chamber, said valve body being provided wit-ha water inlet passage communicating'with said inlet chamber.

16. In a hydraulically operated flushing valve mechanism the combination with a valve body provided with a tank aperture of relatively largearea, a flushingdisoharge aperture of correspondingly large area, a partition interposed between said apertures and provided with a flushing aperture of correspondingly large area, said mainbody having also a pressure chamber and a flexible diaphragm forming one wall thereof, a flushing valve carried by said diaphragm for closing said flushing aperture, and holding the valve normally closed, and a relief valvefor' said pressure chamber, of a water inlet chamber provided with a discharge aperture of relatively small diameter, in communication with the tank aperture and flushing aperture, a transfer tube extending from thesaid inlet chamber through an aperture in said valve into and having a discharge aperture in communication with the pressure chamber, said valve bodybeing provided with a water inlet passage com- 1, s3i,7ee-

and providing with a'flushing; aperture of correspondingly largearea, said main'body having also'a pressure chamber and a flexiblediaphragm-forming one wall thereof, a flushing valve 'CaillGCl, by sa d d1aphra'gm..70 for closing said' flushing aperture, and

'relief valve for said pressur'e'chaniber, of

a water inlet chamber provided, with 'a discharge aperture 'of relatively small diameter, in communication with the tank aperture and flushing aperture, a transfer tube extending from the said inlet chamber through an aperture in said valve into and having a discharge aperture in communication with the pressure chamber, said valve body being provided with a waterinlet"passage communicating with" said inlet chamber, said flushing valve and diaphragm being pro vided with a sleeve uniting the sanie and looselyfitting' said transfer' tube, andfsaid transfer tube having its discharge aperture in a lateral wall, in position to'beuncovered V by'the said sleeve when-theflushing valve is in closed position, and to be covered by said sleeve and throttled' when the flushing valve is in open positioni 7 18. 'Inahydraiilicallv operated valve, the combination with"a valve body provided I with a water inlet chamber, a. tank aperture in communicationtherewith, a flushing discharge aperture, a flushingvalve interposed between said tank aperture and flushing discharge aperture, said valve "body be ing also provided with an annular flange portion, a diaphragm having its marginal portion engaging said annular flange portion and formingone wall of :a pressure chamber, said diaphragm being connected with said flushingvalve,"acap engaging the marginal portions of said diaphragm and forming the -otl1ei-wall of the pressure chamber, and a relief valve for said pressure chamber, a stationary part se'cured*"to the valve body and extending through an aperture in said valve, and means engaging said stationary '110 part for securing said capto the main body and clamping the marginal portions of the diaphragm between said cap and the annular flange portion of the main body.

19. In a hydraulically operated valve, the

combination with a valve body providedwith a water inlet chamber, a tank aperture in communication therewith, a flushing discharge aperture, a flushing valve interposed between said tank aperture and flush 1 20 ing discharge aperture, said valve ,body beingalso provided with an anniilarflange 7 portion, a diaphragmha'ving its marginal portion engaging" said annular flange poi-' tion and forming one wall of "a" pressure chamber, said diaphragm being connected with'said flushingvalve, a cap engagingthe marginal portions of said diaphragm and forming the other wall of the pressure chamher, and a relief valve for said pressure with a discharge aperture within said pres-' sure chamber, normally uncoveredwhen the valve 1s m closed'p'ositlon, and means engaging said transfer tube for holding said cap in operative positio'nwith respect to the ,':ilveliorly, and t'ions of the diaphragm between said cap and said annularliange portion of the main body.

20; In ahydraulically operated "valve mechanismthe combination with a valve body provided with an inlet. chamber, a tank aperture communicating therewith, a flushing discharge aperture, a flushingvalve interposed between said tank aperture and flushing discharge aperture, a pressure chamber for closing said valve and holding it in closed position, aiflexible diaphragm forming one wall of said pressure chamber and" ope-ratively said valvebodyhaving a flushing chamber formed therein having a portion'of com: paratively small area adjacent tojthe flushing valve, and a portionof largerqagrea adjacent to the flushing discharge aperture, and communicating therewith, a relief passage for said pressure chamber communicating with the portion of said flushing chamber of larger area, and a relief valve controlling said relief passage, and means for establishing a connection at all times,be tween the water inlet chamber and said pressure chamber. I V

21; In a hydraulically operated flushing valve mechanism of the kind described, the combination with a valve body provided with a tank aperture of relatively large area adapted to be, connected with a closed tank, I

a flushing discharge aperture of correspondingly large area, a flushing valve interposed between the tank aperture and the flushing discharge aperture,

in closed position, and a relief valve for said pressure chamber, her in said valve body small discharge aperture in communica 'tionwith said tank aperture, means for establishing a constant communication between the said inlet chamber and the pressure chamber, a water supply passage communicating with said inlet chamber, and an auxiliary cut off valve for the water supply passage, whereby said water supp'ly can be cut oil, and the reliefvalve opened to effect the emptying of the tank-andthe renewal or;

' the air cushion therein.

clamping the marginal porrelatively large area,

connected with saidvalve, 7

aperture of correspondinglyilarge area, a

a pressure chamber "for closing said valve and normally holding it,

of an inlet cham-' having a relatively a tank aperture 1 aperture of correspondingly large area, a flushing valve interposed between'said apertures, a pressure chamber,

diameter, in communication with said tank. I

aperture, means for establishing a communication at all tlmes between the said inlet chamber and said pressure chamber to close said flushing valve and hold it normally in closedposition, saidvalve body having an inlet passage communicating with said inlet chamber, and means for temporarily arresting the final'closing movement of the flushing valve to insure an after fill of the bowl and water seal ofthe closet with which the valve mechanism is connected.

23. In-a hydraulically operated flushing valve mechanism, the combination with av valve body provided with a tank aperture of flushing valve interposed between said apertures, a' pressure chamber, a flexible diaphragm forming a wall 'of' the pressure chamber and operativelyconnected to said valve, and a relief valve for said pressure chamber, of an inlet chamber provided with adischarge aperture of comparatively-small diameter, in communication with said tank aperture, means for establishing a connnunication at all tlmes between the said inlet chamber and said pressure chamber to close said flushing valveand hold it normally in closed pos1t1on, inlet passage commumcating with said inlet chamber, said bodybeing provided with an auxiliary aperture independent of the pas- V,

sages for flushing water, adapted to be closed when the flushing valve is inclosed position, and a by-pass in communication with the said inlet passage and inlet chamber, and leading to said auxiliary aperture for exerting water pressure in a direction opposed to the pressure in the pressure chamber, to temporarily arrest the final closingmovement of the valve, to insure the aftenfill of the closet bowl with which the valve mechanism is connected.

24. In a hydraulically operatedflushing valve mechanism, the combination with a 1 valve body provided with a tank aperture of relatively large area, a flushing discharge aperture of correspondingly large area, a flushing valve interposed between said apertures, a pressure chamber, aflexible diaphragm forming a wall of the'pressure chamber and operatively connected to said valve, and a relief valve for said pressure, chamber, of an inlet chamber provided with a discharge aperture of. comparatively small diameter, in communicaa flushing discharge said valve body having an tion with said tank aperture, means for establishing a communication at times between the said inlet chamber and said pressure chamber to close said flushing valve and hold it normally in closed position, said valve body having an inlet, passage conimunicating with said inlet chamber,- said valve body having a Water dischar e aperture communicating with the flashing outlet, and so located as to be closed by the diaphragm when the valve is in closed position, and a Joy-pass comn'iunicating with saidinlet passage and inletchamber, and leading to said aperture. to exert pressure on the diaphrag'n i ina directionopposed to that eX-.

erted by the Water in the pressure chamber, to temporarily arrest the final closing movement of the flushing valve. I I

25. In a hydraulically operated flushing valve mechanism, a the combination With a valve body provided with a tank aperture of relatively large area, a flushing-discharge {aperture ofcorresponchngly largearea, a

flushing valve interposed between said apertiires, a pressure chamber, a flexible dill-- phr m forming a Wall; of the pressure ,cham er and operatively connected tosa-id valve, anda relief valve for said Ie Sure chamber, of an inlet chamber provi ed with 'a'discharge aperture of comparatively small diameter, in communication With said tank i aperture, means for establishing communicat on at all tunes between thesaid inlet chamber and said pressure chamber to close said flushing valve and hold it normally in closed position, said valve body having an inlet passagecommunicating with said inlet, chamber, said valve-body having a flange" ture and comnnmicating with said inlet'pas-l sage and inlet chamber,.to temporarily arrest-the final elosingmovement of the flushlngVillVG;

In testimony whereofl aflixmy signature 7 rinnrr HA AS l/vitiiesses: i i I -L E FELDM-AN,--

M. S KULEns.

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