US1629914A - Inlet-valve mechanism - Google Patents

Description

Ma 4 l y 2 927 P. HAAS INLET VALVE MECHANISM Filed NOV. 16, 1926 50 INVENTOR .5@ BY a ATTORNEY Patented May 24,1927.

UNITED STATES PHILIP HAAS, or DAYTON, o nio.-

INLETfvnLVE iviEonAivIsivi.A

' Appiicann fried inventer 16, 1926. `semaine. 148,639..v l

My inventioncon'sists in the novel yfeatures hereinafter described, referencegbeing had to the accompanying drawing which' illustrates one embodiment of the invention selectedby me for purposes of illustration, and the said invention is fullydiselosed in the followingdescription and claims.

The object` of my inventionis to provide V an inlet valve mechanism for flushing tanks adapted to be controlled by a floatand float lever, in which the maximum .eiiicieney combined with eXtremesimplicity and cheapness of manufactureis obtained, the porvtions, of the ,device subject to wear andreplacement being readily accessible. to. the ordinary householder, sothat all necessary repairsandreplacements maybe madeby an unskilled person without the delayA and eX- pense incident to the. employinentof skilled y labor, the said valve mechanism being so.

constructed that it may be read-ilyinstalled 'in any of t-he ordinaryfiush tanks now in use. where desired,

for the purposev offrei pairing or refitting the same.

Referringv to the drawing,

Fig. 1 is a ,front view off aflush 1' tank partly broken away, and showingmy improved inlet 4valve mechanism ,installed d therein in connection with the lusual float member pressed into the same.

andiioat lever.l y

2 is an enlarged sectional view of the inlet valve and adjacent parts, including the inlet and discharge pipes connected therewith. l

Fig-3 is a kdetail view showing the sevferal parts of the valve mechanism inseparated relation. 1

Iiigzxi is atop plan view of the lower portion of thevalve body showing-'the seat Fig. 5 represents a sect'on on line of Fig, 2, showing an adjustable stopplateffor limiting the downward movement of the float. Y i Y Fig. 6 represents a-sectional view of Ethe lower portion of the valve body showing ythe manner of connecting an after-fill -pipe therewith, when desired.

Fig. 7 is a bottom plan view of a muflling collar with which the discharge pipe from the valve mechanism is provided, as shown in Fig. 2. Y i

ln the accompanying drawing, 1 represents a flush tank which may be ofany usual or preferred construction.'A These :provided withf` a Lremovable cover, v,as indicated at'2, butniy invention is applicable to'f'tanks generally, regardless Vof the material of whichY they ai'e made. rThe tank is 'shown provided with a, discharge or.

ilushing pipe, 3, controlled by any "usual or preferred type of. flushing valve mechamsm, 'which isnot ,herein shown or described, as' it formsno part of my present invention. I have, however, shown the tank provided `withthe usual overflow pipe indicated l at 4.' In the form ofmy invention herein shown, y represents'v a verticallydisposed'r inlet pipe within the tank which `screws into a fitting, 51, having a threaded sleeve portion, lafextendmg.through an aperturein the bottom of the tank, and secured toV thetank ,bottom by a nut, 511. The threaded sleeve, 51?, ,is lconnected with a `water supplypipe, 52, in any usual or de-' sired way. The upperend of the inlet pipe,

y 50,;'preferably extends above the water level of the tank, as indicated in Fig. l, and sup-` portsfthe inlet valve',the, casing ofwhich preferably comprises two parts united by a follower in va manner somewhat similar to a pipe union.l The lower portion of the -valve casing comprises a hollow sleeve, 53, which is preferably providedfexteriorly at its upper end with threads, '53%' which may be v.r'olledf-or cut therein, and thelower portion :of the sleeve is provided with interior threads, 531. The interior of the sleeve is provided with al plaincylindrical bore, so

that this" part can be readily produced in quantity on van ordinary screwy machine. Vithin the sleeve, 53, is a separate valve seat member comprising a polygonalv body, l y preferably square, indicated at.58,ofA suoli diameter through 'the opposite corners thereof, thatitmay be forced byfpressure into the bore of the sleeve, `53, so that the sharpcorners of the block willV seat themselves in thev metalof the sleeve, and` retain the valve seat member permanently in the sleeve until' it is desired to drive it out. The block, 58, is internally threaded kto receive the upper end of the Water inlet pipe, 50, which is screwed therein, and the upper part ofthe block is turned downto provide an annular valve seat, 59, the' outer edges of` whichare preferably slightly beveled ory rounded, asindicated at 59a. This part may alsoV be economically produced in v quantity from. square or polygonal stock on a screw tanks are usually made of porcelainwand machine Itk will be noted that y when the block, 58, is forced into position within the sleeve, 53, as indicated for example 1n Fig. 2 and Fig. G, an annular space is provided withinthe sleeve, as indicated at 57, surrounding the valve seat, which communicates by means of the segmental shaped vertical passages, 57, with the lower portion of the sleeve into which thevertical discharge pipe, 56, surrounding the water inlet pipe, 50, is screwed. 4The discharge pipe, 5G, does not extend to the bottom ot the tank, and the annular passage is thus yformed, indicated at 60, between the inlet pipe, 50, and the outlet vthe klitting, 51, and leave an annular space,

82, 'for the discharge of the water into the tank.y This annular space, 82, will be oi much greater capacity than the annular space, 60, between the inlet and discharge pipes. In order to hold the lower edge of the muiiler sleeve sutliciently above the tank bottom to insure the free delivery of water thereunder, said sleeve is preferably pro# 'vided with inwardly extending brackets indicated at 83, see Figs. 2 and 7, whichrest upon the fitting, 51, and hold the lower edge of the mutller sleeve at the desired distance from the bottom of the tank. This construction is very simple, but is very etlicient, in permitting the water to discharge into the tank without pressure, thus causing it to run in silently, regardless ofthe pressure of the water supply.

The upper part ot' the valve casing comprises a casing member, 61, which is otcylindrical form, and is provided at its lower end with an annular flange, 61a, adapted to receive a follower, G2, provided with interiorly threaded portions to engage the exteriorly threaded portions, 58, ofthe casing member. 53. The valve itselt is formed by a simple disc, G4, of rubber or leather, or other suitable material, having its edges clamped rigidly between the meeting faces of the casing members, G1 and 53, above the valve seat, 59, the said disc being adapted to be forced down into engagement with the seat by a mushroom plug or pin, 65, located in a recess, 61h, in the upper casing member, and having a stem, `6 6,.extending through a hole inthe upper casing member into a transverse recess,l 67, with which said member, 61, is provided. It will Abe noted that the clamping of the marginal. portions'ot the valve disc, 64, between the members ot the casing makesit unnecessary to-provide any stufling box for the projecting stem, 66, as no water eanpass above the valve. ot the mushroom plug, 65, is provided with a 'circular recess, 65a, slightly larger than the valve seat, 59, so that when the mushroom plug is depressed as hereinafter described, the central portion of the disc valve will be clamped between the inner face of this recess and the valve seat, and'delected slightly out of the plane of the other portions ot the disc, thus insuring the positive seating of the valve on the valve seat, and the closingot the water inlet aperture in the seat. The upper portion ot' the Acasing member, 61.is ,provided on opposite sidesof the slot or recess, 67, with two pairs of aligned apertures, 68 and v(38, located at different distances from the mushroom plug, and designed to receive a pivot pin, 69, on which the valve actuating lever or float lever, 70, is pivoted. The object of havingtwo ksets of apertures is to permit of changing thev leverage ot the float lever with respect to the mushroom plug, when this is necessary or desirable. In this instance I have shown the lever, 70, threaded. at its inner end and provided with an internallythreaded sleeve, 71, into which it screws, the said sleeve being drilled transversely to receive the pivot pin, 69, and after the parts are assembled with the pin in the proper pair of register.

ing holes, the float lever, 70, isscrewed up against the pin, as indicated in Fig.' 2, and serves to lock the pin against accidental longitudinal movement. I also prefer to provide the threaded portion of the lever, 70, adjacent to the sleeve, 71, with a lock nut, 72,r preferably in the form of a wing nut, which can be screwed up against the end of the sleeve, 71, so as to lock the parts. into position, and prevent the lever from' unscrewing and releasing the pivot pin, 69.

I also prefer to provide the iioat lever, 70, with an adjustable stop Vto limit its down- .wardmoveine1`1t, so that when the water level falls during va flushing action, the float indicated in this instance at 75', cannot interfere with the operation of the flushing valve, (not shown). For this purpose I conveniently employ an adjustable stop plate indicated at 73, and shown in detail in Fig. 5. This plate is preferably rectangular or polygonal in shape` and is provided with an aperture indicated at74f, surrounding the lever, 7(1), and so located that each of the edges. 78, 73h, 73C and 78d are situated at a 'different distance from the center of thev hole, 74, as indicated by dotted straight lines in `]Fig. ,5. The length of the sleeve, 71, from the vpivot pin, 69, is so calculated that by inserting this stop plate, 73, Y

between the end of the sleeve and the set nut, 72, its lowest edge will: engage a part The lower taceY llt) of' the inlet valve structure, asefor example in this instance the upper face of the follower, 62, and serve as ajstop'tolimit the downward movement-of the'float and float lever. By loosening-the set nut, 72, the stop plate., 73, may be rotated'to 'bring any one of its edges into the bottom position, there.

by forming' an adjustable stop-for limiting .water in the inlet pipe, 50, willraise-'the valve, 64, permitting the water to flow over the valve seat and down through the segmental passages, 57, between the Aseat block, 58. and the walls of [the lower casing member, 53, and discharge through the annular passage, 60, between'the inlet pipe, 50,'and.

the discharge pipe, 56, Iinto the muffler sleeve, and thence silently into the tank. As soon as theflushing valve is closed, Ythe tank is refilled, and as the water level rifsesit lifts the fioat fand float lever, depressing the mushroom plug andforcingthe disc valve upon its seat, so as" to stop further ingress of water. fIn pressing thel disc -valve upon its seat, the lbeveled edges, 59'1, of the seat, and the recess, a, in theplugco-op'erate in `seating the valve 'at the outer edge of the seatrst, thus 'closing off the'supply of v-water silently, and preventing theV prolonged hissing which isfrequently noticed in the closing of inlet valves,

In Fig. 2 of the drawing vthe float lever is 'shown pivoted in the aperture, 68, located at the greater distance from the axisk of the mushroom plug. In a case wherevery high water pressure is encountered and itis desired to aifoid the` fioat and float leverxincreased leverage in closing Vthe inletv valve, the upper member, 61, of the valve casing may be rotated into the vdiametrically opposite posit-ion by loosening the follower, 62, and the float lever rmay be pivote'd in the other p'air of apertures, 68a.

It will be seen that my improved inlet valve mechanism is of very simpleconstruction, and that the parts may be readily manufactured and assembled. As the valve casing is located above the waterrlevel, it is readily accessible to elfect'a repair or replacement by simply removing the top or cover, 2, of the tank, when the follower'can be unscrewed bytheingers, (or an ordinary `without the aidof skilled labor.` vjustment of the stop plate, 73,7will ordinabersv of the valve casing, The part of an yinlet'i'valve mechanism which is most sub- `ject to injury? and wear, is the .valve itself, i `and as-this is a merev disc of rubber: or "ilcatlier,-it. can be 'readily removed and replaced by Vanother similar valve or disc, and y if the householderV does not happen/to have 'suc-h a 'disc furnished by the manufacturer,

adisc can be improvised by cutting it from any suitable piece of Y rubbery or leather, whichmay be conveniently at hand. Should the valve seat become injured 'by the'action of grit in the water or-corrosion from chemical constituents of the water, the lower cas- .ingr member can be unscrewed, and the seat plug, 58, .driven out Yfrom thev bottomnpwardly by means of'a nail or hammer or otherwise, and a new valve seatjblock furnished by the manufacturer canbe inserted,

`sothat my improvedvalve mechanism can be repaired byv any ordinary householder,

The adrilybemade when the device isinstalled and will probably vnot require further adj ust- Y-ment,-but if' such adjustment should be necessary-u it can be readilyy effected by simpl-y -looseningthe' said nut, 72, and turning the plate, 7 3, tobring the proper edge into lowest position.

Where it is desired to provide for an.

after-fill, the lower member, 53, ofthe valve casing is preferablyprovided with a lat-y eralthreaded aperture, as indicated at 53,

in Fig. 6, in which is screwed anipple, 75, providedwith a bore at its outer end large enough to receivea piece'of small-copper Itubing indica-tedV at76.V ,This t'ubing,76, is .providedzwith a rubberwasher or packing ring, 77, surrounding the same, and is engaged by a follower, 7 8, which screws on to the nipple, 75, so as to clampthe washer,

'77, between itV and the -end ofthe nipple and around the tube, 7 6, thus forming what is in effect a rslip joint,.,and obviating the necessity of threading the copper tube,

which necessarily weakens'such a tube and causes it to conveniently break in the threads; `The outer end of thc tube, 76, is

carried above' the overflow pipe, 4, as indicatedinfFig. for eXample,in a well knownk way,thus providingl a smalhstreamfof water which will be discharge through the overflow pipe. to the bowl after the closing of the flushing valve and until the inlet l'valve is closed, and providing for an after-v fill of the bowl.. Where the tank is provided with other means for effecting the afterfill, the lower member ofthe valve casing .may be made without the lateral aperture, 53C, as 'indicated for example in Fig. 2;

By making `the .valve seat block separate Afromy the lower member' of the valve casing,

wrench, if'necessary), to separa-te the mem- -as herein shown and described, this portion casing ot'non-corrosive material, thus elf- .iecting a very considerable saving in the costr of n'ianutacture. lt will also be understood that when the parts are assembled, the Amarginal portions of the flexible disc valve will be clamped by the action of the follower between the annular clamping portions of the upper and Alower casing members in the manner shown.

That l claim and desire to secure vby Letters Patent is l, The combinationwith a ilushing tank, o' a vertically disposed inl-et pipe therefor, anV inlet'valve casing secured to the upper cnd ol said pipe, and provided with an inlet valve, a loat operated lever for controlling said inlet valve, a discharge pipe surrounding the inlet pipe and extending from the inlet valve casing to a point adjacent to the bottom of the tank, and a murtier sleeve having a portion at its upper end litting the lower end of the discharge pipe,

and a portion at its lower end ot larger diameter providing ultimate dischargek passages ol increased area adjacent, to the bottom oit the tank, to .facilitate the discharge and distribution of water from the vdischarge pipe noiselessly regardless of the pressure in the inlet pipe.

Q rllhe combination with ay flushing tank, oi' a vertically disposed inlet pipe therefor, an inlet valve casing secured 'to the upper end. of said pipe, and provided with an inlet valve, a float operated leverfor controlling said inlet valve, a discharge pipe surrounding the inlet pipe and extendingr from the inlet valve casing to apoint adjacent to the bottom of the tank, and a mui"- iier sleeve having an aperture at its upper end closely .surrounding the lower end vof the discharge pipe, .and an aperture of greater diameter at its lower end, and

, means for supporting,r said sleeve in position to provide an ultimate discharge passage between' its lower edge and the bottom vof the tank ot greater area than the discharge passage between the inlet and discharge pipes, to facilitate the discl'iarge ot water into the tank without noise regardless of the pressure in the inlet pipe.

3. The combination with a iiushiiig tank, of a vertically disposed inlet pipe therefor, an inlet valve casing secured to the. upper end of said pipe, and provided with an inlet valve, a float operated lever for control- V'linker said inlet valve, a discharge pipe sur- .rounding the inlet pipeand extending from wardly extending supportingv .flanges for supporting it at the desired distance from 75 the bottom of the tank. y

'1l'. The combination with a iushing tank,

of a vertically .disposed inlet pipe therefor,

an inlet valve vcasing secured to the upper end of said pipe, and provided with an in- 80 let valve, a iioat operated lever for controlling' said inlet valve, a discharge pipe surrounding the inlet pipeand -eXtendingfro'm' the inlet valve casing lto a pointfadjacent to the bottom of the tank, and a muttler'sleeve 85 or' porcelain having an aperture at its upper end surrounding and substantially. fitting the lower end otthe discharge pipe, and

vhaving an aperturei'of greater diameterat its lower end, said sleeve. being provided 90 with integralL supporting langes `for holding it atv the desired l.distance 'abo-ve the Y bottom of the tank. Y

5. Inlet valve mechanism for flushing tanks, including an inlet valve casing't'ormed 05 ot two separable members, one of `said members being provided Ywith a cylindrical bore and havinga discharge aperture at its lower end. and threaded portions forconnecting a discharge pipethereto, aseparately termed loo block polygonal in horizontal cross-section, and provided'at its upper end with avalve seat, said block being forced `into. said bore and frictionally retained therein,an'd ipr-oviding verticalapertures laterally of said. 105

block communicating with the. ldischarge aperture, said -block having a longitudinal bore and being provided with threaded portions for attaching thereto an inlet pipe extending longitudinally of the dischargepipe, in

the other member ot' the valve casing` being` provided with a longitudinally movable valve engaging plug, having a' stem entending through said member into position to be engaged b v a loat operated lever, and said 11n members being provided with cti-acting -clamping portions, a flexible disc valve interposed between the clamp'ingportions ot' said members and extending between the valve seat and said plug, and means for 120 clamping said members together upon Vthe marginal portions otl said. `disc valve.

6. Inlet valve mechanism :tor flushing tanks, includingv an inlet valve casing formed oiE two separable members, one of said mem- Vlas bers vbeing provided with a cylindrical bore and having a discharge apertureat its lower end, and threaded portions for connecting a discharge pipe thereto, a separately formed block polygonal in, horizontal cross section, lao

and provided at its upper end with a valve: seat, said block'being forced into said boreV and trictionallyretainedy therein, and providing vertical apertures laterally of said blocl Communicating withy the discharge' aperture, said block having a longitudinal bore and being provided with threaded portheV other member of the valve casing being provided vwith ar longitudinally movable valve engaging plug, having a stem extending through said membe'rinto position to-bef engaged by ailoat operated lever, and said members being provided with co-acting clamping portions, ya flexible discl valve` interposed between the clamping portions lof said members rand extending between the valve seatand said plug, and means for clamping said members .together upon the marginal vportions, 'of said disc valve, said plug having its Avalve engaging .'ace pro-;

videdl with arecess of slightly greater diameter than the valve seat.

7.'Inlet valveV mechanism4 for, flushing tanks comprising among its members a valve casing formed Voittwo separablemembers,

oneot said members being provided witha longitudinal bore, annular clamping portions at its upper end, and internally threaded portions at its lower end to receive a ldischarge pipe, a separately formed' block square in horizontal cross-section, having its angular portions u engagingwthe cylindrical bore of said member to* frictio'nallyv retainv said block therein, and formlateral passages aroundthe block communicating Vwith the discharge pipe, said block being provided at its upper end with a valve seat of smallerv diameter than saidbore, said blockv having a longitudinal bore and being provided with threaded 'portions at its lower end to receive a water inletpipe, the other memberjot said valve casing being provided on lits lower face with annular clamping portions, `and at its upper end with', a transverse recess" to receive a float ope-rated'lever, and meansfor pivotally supporting said lever in said recess, said member being also provided 'with a vertically movable plug, having a stem extending rlongit udinally through said 'mein-j ber',`into said recess inuposition to bey engag'edv by the float .actuated lever, ajdisc valve extending between said plug and valve seat and having its marginal portions locatedbetween' the clamping portions of said' casing members, one ot said casing members being provided y,with annular g'l'an'ge and the other with Vexterior threaded portions,

and a follower for-.engaging saidllange and threaded portions of saidv membersA vrespectively, jand clamping" them" together'iupo'n valve. i f Y 8.-Inletvalvei'n'echanism forflushing taiilrs,'including an inlet valvecasing li'formed of two separable members, oneof saidy mem- 1 seat, vsaid bloclr being forced-into said bore"v andv frictionallyretained therein, and kproviding vertical apertures laterally of said block 'comiiiunicating with the discharge aperture, said block having a loiigit'udi-gy nal bore and being provided with threaded portions, for attaching thereto yanV inlet pipe extending longitudinally of the discharge pipe, the other member 'of the valve casing being provided with a longitudinally movable valve engaging plug, having asteni extending through said'member into position to be' engagedvbya 'float operated lever, andv said Ymembers being provided with co-acting` clamping portions, a flexible disc valve interposed between the clampingportions of' said members and lextending between valve seat and Sayid plug,- and means clamping said members together upon marginal portions of said'disc valve, irstv mentioned member `offs'aid valve casingbeing provided with 2a lateral apertureV communicating with the vertical passages around the seat block therein, and ,means for connectingan after-fill pipe with said lateralv aperture. 4 p 9. Inlet valve mechanism l'or flushingV tanks, including an inlet valve casing termed of two separable members, one ot said inembers being provided with a cylindrical bore and having avdisch'arge aperture' at its lower end, and threaded portions v:tor connecting a discharge pipe thereto, a separately Voiine'd block polygonal in horizontal cross-section, and provided atits upper' end with a valve seat, .said block being forced into said bore' and frictionally retained therein, and'providing vertical apertures vlaterally. o'fs'aid for the Lblock communicating withl the discharge aperture, said block having a longitudinal bore and being provided with threadedpoi'- tioiis for attachingV thereto anl inletpipe eX: tcnding longitudinally of thefdi'scharge pipe `the other member ot the-valve casing being provided with a longitudinally movable the Cil

the Y Cil said-finembers; together upon vthe. marginal portions of said, disc valve, the first vmentioned casing in-emberb'eing provided with ala'teral aperture communicating with the vertical passages around'thescatblock vtherein, said lateral aperture having an enlarged portion for receiving an unthreaded 'atter lill pipe, and a follower and packing ring for attaching the after-till pipe to said cas;y ing member without the use oi. threads.

l0. Inlet valve mechanism for flushing tanks, con'iprising among its members a vertically disposed inlet pipe Vprovided with means for securing it to said tank, an inlet valve comprising a. lower Vmember supported by said inlet pipe, and provided with' a ccntrally located valve seat and vertical dis,- cli'ar'ge passages disposed laterally thereof, andthreaded portions at its lower end for receiving andsupporting a discharge pipe surrounding the inlet pipe, any ripper inembei"l detachably connected to the lower inember, and provide'dlat its ripper end with means for pivotally supporting alioat, lever, and having a vertically movable plug provided with a. stem, a disc' valve extending between said plug ancttlie valve seat orthe other member, and having its marginal portions clamped between said members'fa float,

edge portions atdifterent distances from thek lever for engaging a portion or said valve to limit the downward movement of said lever, and means `for clamping said plate in its adjusted postion.

ll. Inlet valve mechanism tor flushing tanks comprising among `its members ,a .vertically disposed inlet pipe provided. with means for securing it to said tank, an l.inl-et valve comprising a lower member supported by said inlet, pipe, and provided with a centrally located valve seat and vertical discharge passages disposed laterally thereo't', 'and threaded Vportions at its lower end ior receiving and supporting a discharge pipe surrounding the inlet pipe, an upper mem- 'ber detachably connected to the lower member, andv provided at its upper end with means for pivotally supporting a float leverI` and having a vertically movable plug provided with a stem, a disc valve extending between said plug and the valve seat ot' the other member, and having, its marginal portions clamped between said members, a float lever pivotally connected with` said second mentioned member in operative `relation with said stem, a rectangular stop plate pro-A vided with an aperture therein to engage said lever, the axis ot said aperture being located at different distances from the several edges of said plate, said edges beding constructed to engage a port-ion of the valve casing to limit the downward movement ot the float lever, and clamping means for .holding said plate in itsk adjusted position with respect to said lever.

l2. Inlet valve mechanismV comprising Leeaem? among its members a-verti'eally disposed in'-V let pipe, a valve casing comprising a lower member, having a valve seatand'threaded portions adjacent thereto for engaging.said inlet pipe, vertical passages 'exterior to and lateral or said valve seat, and a threaded aperture atits lower end for engaging a discharge pipe surrounding the inlet pipe,

an upper member provided with a transversev connecting said sleeve with the upper cas'- ing m-ember and extending through the transverse aperture in the sleeve, and the aligned apertures of said casing member, a ioat lever having ,a threaded portion 'for engaging in the recess in said sleeve, and adapted to engage said pivot pinto hold it against longitudinal movement, and a'set nut onthe threaded portion of saidrlever, said sleeve forming an extension ol said lever and having a part in operative engagement with the stem of said plug.

13. Inlet valve mechanism comprising among its members a vertically disposed inlet pipea valve casing comprisinga 'lower mem-v ber, having a valve seat and threaded 'portions adjacent thereto for engaging said inlet pipe, vertical passages exteriorto an'dlateral of said valve seat, and a threaded aperture at per casing member and extending throughthe transverse aperture in the sleeve, and the aligned apertures said casing member, a float lever having a threaded portion` for en` gaging. in the recess in said sleeve, and adapted to engage saidpivot pin to hold it against longitudinal movement, and a set nut onthe threaded portion vof said lever, said sleeve forming an extension or said lever and havinga part in operative engagement with the stemof said plug, a rectangular .stop plate interposed between said setV nut and said sleeve, and provided with an aperture located at different distances from the edge portions of said plate, for engaging the threaded portion of said lever, the edges ofV said stop plate being adapted to engage a portion of the valve casing to variably limit the downward movement of the float lever, whereby said vset nut locks the said lever against rotation in the sleeve, and in engage- Aupper members, the lower member being provided with a cylindrical bore and threaded at it-s lower end to receive a discharge pipe surrounding the inlet pipe, a block polygonal in horizontal cross-section, having its angular' portions trictionally engaging said cylindrical bore, and forming vertical passages between the polygonal faces of the block and said bore, said block having a longitudinal bore an-d a valve seat at its upper end, and said member being provided with exteriorly threaded portions, the upper casing member being provided with an outwardly projecting annular ifiange, an interior recess above said valve seat, a transveise recess in the upper portion, and a vertically movable plug having a stem extending into said recess, a i'iexible disc valve extending between the plug and said valve seat, and having its marginal portions clamped between said membersr of the casing, a follower detachably connecting said casing members, a. float lever provided at one end with a sleeve threaded thereon and pivoted in said recess in operative relation with the stem of said plug, said lever being adjustable longitudinally in said sleeve into andv out of engagement with the pivot, a set nut on the threaded portion of said lever for locking it with respect to the sleeve, and an adjustable stop plate interposed between said set nut and sleeve, and having edge portions Y at different distances from the lever for engaging said follower to limit the downward movement of the float lever.

15. Inlet valve mechanism for flushing tanks, inclu-ding an inlet valve casing formed of two separable members, one of said members being provided with a cylindrical bore and having a discharge aperture at its lower end, and threaded portions for connecting a discharge pipe thereto, a separately formed block polygonal in horizontal cross-section, an-d provided at its upper end with a valve seat, said block being forced into said bore and :trictionally retained therein, and providing vertical apertures laterally of said block communicating with the discharge aperture, said block having a `longitudinal bore and being provided with threaded portions for attaching thereto an inlet pipe extending longitudinally of the discharge pipe, a valve in said valve casing for engaging said valve seat, .and operative means for seating saidy valve including a stem provided with means for operatively engaging a ioat operated lever.

16. Inlet valve mechanism for flushing tanks including an inlet valve casing formed or' two members, relatively rotatable with respect to each other and means tor detachably clamping them together, one of ysaid members being provided with a valve seat' and vertical discharge passages disposed laterally of said seat, a valve for engaging said seat, valve seating means provided with a stem extending through the upper part of the other member of the easing, said upper part being provided with transverse horizontal apertures located at different-distances from and on opposite sidesof the axis of said stem, a ioat lever having a pivot to engage the apertures on one side of said aXis, and having a portion for engaging said valve seating stem, whereby by loosening the clamping means and rotating the upper member ot said valve casing the float lever pivot may be placed in engagement in the apertures on the 'other sider ott the axis of said stem to change the leverage of the float lever with respect thereto to adapt the device for use with dii"- 'erent water pressures. 1

In testimony whereof I aliix my signature.

` PHILIP HAAS. y

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