US1639997A - Inlet-valve mechanism - Google Patents

Description

Aug. r23',v 1927.

.INVENTOR ATTORNEY P HAAS INLET VALVE MECHANISM Original Filed March 1e. 192s Cil . invention is fully Patentd Aug, 23 1927. v .Y

UNITED As'rfrplas' v1,639,997 PATENToFFICE.

Y 5121111.11#l HAAs, 10F DAYTON@ `oirro.

Y `1Nmaf-VALVE: ivIEcHANKI'si/r.

My invention consists in the novel features hereinafter described, reference being had to the accompanying drawing, which illustrates one embodimentof the invention selected by me for purposes of illustration, and the said disclosed in the following description andclaims.

The object of my'invention is to provide an inlet valve for flushing tanks of extreme simplicity vand of cheap construction, which `can vbeemployed Ain connection withany ordinary flushing tank and which is so constructed and arranged that it is readily accessible, so that the valve can be readily removed and replacedv without the expense and delay incident to the employment of skilled labor, and my invention consists in thenovel features'of construction and Combination of -parts hereinafter fully described'and particularly pointed out in the claims.

This application is a division of my formerapplication for Letters Patent of the United States filed March 16, 419,26, and

given `Serial No. 95,007. Y

Referring to the accompanying drawings,`

Fig. `1 is af'vi'ew of a flush tank, partly broken away, andfshowing my'improved inlet valve mechanism installed therein.l`

Fig.` 2 is an enlargeddetail sectional view,

of the inlet valve anda portion ofthe float leverlfor loperating the same, showing kthe valve in closed position.;

` Fig. 3 is a detail viewofthe several parts*v of the valve mechanism in separated relation. Y v.

Y Fig. 4 is a top plan view of the'lower'casing member.

Fig. 5 is a similar view tovFig. 2, showing v a slight modification of thevalve mechanism with the valve/,in open positiom In the drawings, l, representszthe tank,

provided with'the usualv cover, 2, and illus-V trating my improved inlety k,valve mechanism installed therein. The tank is'shown tpro-fy Y simple disc,64,iof rubberorleather, or any suitable material having its edges clamped vided with the .usual flushingfpipe',"4,'con nected with thev usual' outlet fitting;4 held in place in the bottom of thet'ank bythe nut, '11, and washer,.12, but these 'partsy and the kflushing valve mechanism, which maybe of f any desired construction, formano part 'of my -present;invention,Y and 1 will not be'further v Y Drignal application led March 16, 1926, Serial No. 95,7007. :Divided and this-application led Novem- 'A ber 23,1926. serial No; 150,267. Y

'nection, 51, in this 'instance-inthe bottom of y and Aa counter-bored and threaded aperture, Y

indicated at 55, into which the upper end of thewater-inlet tube, 50, is screwed.' The inlet tube, 50, is surroundedby a discharge pipe, 56, of larger diameter,-the upper end of which isserewed into-the aperture, 54, in the valve casingr member, 53, and-in the lower end of said ypipe extends nearly to the bottom of the tank, thereby'forming an an? nular deliverypassage surrounding the inlet pipe, 50, and dividing the discharged water which passes intothe tank, into a thin annular stream, which dischargesvery silently from the bottom ofthe discharge pipe. The

v upper partof the casing member, 53,'is pro- ,vided with an annular chamber, 57, inthe center, of which is a tubular valve seat, `58,

lcommunicatingwith'the inlet passage, and

the .annularchamber,57, communicates by a plurality of .vertical apertures, 5.9, as indicated in the top plany view, F ig.` 4, with the annular dischargepassage between the tubes,

l 50`and v56, which 'is indicated by the numeral 60.. The upperipart-ofthe valve casing comprises the'casing-member',l G1, which is of cy- Y lindrical form,andY is .adapted to receive 'a follower, y62, preferably providedl with ears, 63, sol-that it can'be turned by hand without Yawr'enclnrthe said follower having interiorly `threaded portions engaging eXteriorly,threadedfportions on the valve casing member, 5:3.r4 vThe valve itself is formed by a rigidly between the .meeting faces" of the V'casing members, 61and 53, asv clearly shown in Fig.a2-,gabove the valve seat, 58, the said disc beingjada'pted to be Yforced down into engagementjfwith laqseatY by a mushroomv plug, or pin, 65, lravingya stem, 66, extending ,through ahole inthe upper casing member, 6l, Ainto afjtraiisver'se recess, ,with which said member, is provdedv: will, be noted that the .clamping of the marginal portions of the valve disc, 64, between the members of the casing, makes it unnecessary to provide any stuffing box tor the projecting stem, v66. The upper portion ot' the casing member, 61, is provided on opposite sides ,ot the slot, or recess, 67, with aligned apertures, 68, to receive :the .pivot pin, 6,9., on which the Varlve actuating lever, 70, or float is Ypivoted. The pin, 69, is preferably provided with a' segmental shaped extension, iindicatedat 69a, in Fig. 3, so that after vthis pin, 69, is lpassed through the apertures, 68, and the lever, 70, Vvit may be turned down into a horizontal position, indicated in Fig. 2, `to engage ythe cylindrical portion ot the casing member, 6.1,

so that the pin, 69, is thereby locked and cannot be accidentally7 removed.

The float lever, 70, may be provided with a float', 75, of any usual or desired character, which will raise the lever as 'the water fills the tan-lr, and close the inlet valve, 64e, as indicated in Fig. 2. It will be seen that as the -iioat `lever rises, the portion, 70a, in rear Aof the pivot pin, v69, will engage the stem of vthe mushroom plug, 65, andfpress the disc valve, '64, down von'th'e valve seat, 58'. It will also 'be noted 'that 'the point of engagement,

indicated at 70", .between the portion, 70a, 'of the float lever and the end ot the pin, 66, is extremely close to the axis ot the pivot, 69,so that 'the maximum leverage is afforded tothe ftloat in closing the valve and holding it closed. It will alsobe `noted .that this inlet valve can be repaired with the utmost simplicity and without the useo'f any tools. By swinging the locking arm, A69, of the pivot pin vertically into the Lposit-ion shown in dotted lines in F ig. 2, and removing rit, vthe tlo'at lever can be instantly .removed and theiiollower, 62, can be ,unsc'rewed with the fingers by means o wings, or ears, 63enabling the upper part ot the valve casing co-ii'taining the mushroom plug to -fbe .removed together with the disc valve, 64. Any householder can improvise a new disc valve out ot a piece ot lea-ther A,or -rubber, ita spare valve is not available, and the parts can be replaced with aznew val-ve. There is nothing about the valve mechanism, eX- -cept the disc valve to Aget lout Aoit order, and 'should anew mushroom plug =be 1needed for any reason, it can be inserted-while. the upp'e'r halt of the valve casing' is removed,ian*d "a spare plug can be kept Yon yhand for Lthe purpose.

In Fi/g. '5 I have shown a 'slight modiication of theinlet valve,l in whichthe-countery vbore, `which receives the water inletpipe, is cfarried entirely throughthe casting. In :this iigure the lparts corresponding toV v'those 'show-'n in Fig. 2, are-giventhe same numerals, with added. Thus, it yvvillbe noted Athat the valve seat, indicated `at 1.58, is in this instance -tormed 'on the extreme upper :the water Ainl/the tank. 'fthe valve is closing,:there wil\l,'itheretore,ibe substantially equal ,pressure inthe inlet pipe and in the v[discharge passage, .so thatV :the .valve-closes quietly without the hissing noise .usually associated withV the 1operation -ot' inllet valves under a Jhigherlavater pressure. The :eti'ectnis similar =to'.that.of:piiiching av rubber `lhose throughwhichewater under l.pressureQis fbeing conducted.l

bythe portion, 1703, ot the float lever, 170.

The construction is otherwise exactly the same as shownin YFig. 2. y

The mushroom plug, or plunger, whichY operates the inlet valve, is preferably made -ot nickel alloy, so that there is lno'danger ot its becoming corroded,andesshown, it has a very small diameter and .requii'jes a very ysmal-l holein thetop ot the valve casing, leaving heavy stock portions to take the pivot `ot the float aleverl betere stated, this slender Vstem can be made to contact with ,the `lever very yclose to the ,pivotal1 asi-is ot' vthe lever (in ,practice there .is about fig between the vertical planes ottfhe pivot axis and point of ,engagement between the lever and valve stem) thus giving greatleverage `to the float. j

`Where the inlet :pipe is' screwed through thecounterborc portion ,of .the lower valve casing member, :as indicated in Fig. 5,'and the valve seat is it'orme'd on the upper ,end ot `the inlet pipe, by sim-ply turning l:the lower part ot'fthe yvalve casing with respectto the inlet pipe, the .position `of .thevalve seat can be adjusted vertically with respect to the valve, so yas to ycause the valve to close vsooner or later, as desired,` and thus maintaining the water level .at the desired zheight inthe ltank without .bending the iioat lever. This .can be done insita, as the connection` between the upper and ilower members otk the inlet valve casing is virtually a union, permitting the rotation ot the llower .partot thecasing with respectlfto :the inlet' pip-e, by simply loosening the follower, 162, without removing the `float lever.

It is also tobe noted that the inlet'orifice vwithin the valve .seat .is ,preferably 4made substantially equal to, or slightly greater than the area of the annular passage between the inlet pipe and outlet pipe,.so that pressure -is maintained on the .wa-terelear. down to :the lower-:end of thedeliveryrpipe.y which discharges noiselesly under the surface .ot It follows that when 'Vhat I claim and .desire to .secu-reby vlaetters Patent` is 1. vThe combination with fa'ziiushing:tank,V

ot `an inlet pipe therefor"` provided withla :valve seat at itsilextremity, an inletvalve` loi) charge aperture adjacent thereto, an inlet valve consisting of a flexible disc interposed between the members of the valve casing and extending over the valve seat on the end ot the inlet pipe, the other member ofV the valve casing being provided with means for depressing the valve upon said seat, means for connecting the said casing members permitting a relative rotation of one of said members with respect tothe other, and a float actuated lever operatively connected with the valve casing, and adapted to engage the valve actuating device therein, whereby, by rotating said lirst mentioned valvek casing member with respect to the inlet pipe, the location ot the valve seat with respect to the valve may be adjusted.

2. The combination with a flushing tank,

of a vertically disposed inlet pipe within the same, an inlet valve casing comprising upper' and lower members, the lower member being provided, with a central, threaded aperture iitting the upper end of the inlet pipe, vertical apertures arranged laterally of the said central aperture, and a threaded aperture of greater diameter than saidcentrally located aperture at the lower end of said lower member and in communication with Vthe said laterally arranged vertical apertures, a discharge pipe fitting said aperture ot greater diameter, and surrounding ,the inlet pipe and extending to a point near the bottom olf the tank and forming a free annular discharge passage between said pipes` a flexible disc valve for closing communication between the inlet and discharge pipes within the casing clamped ,between the upper and lower members, a mushroom plug in said upper member-t0 engage said discvalve having a projecting stem, and a float lever pivoted to said upper member and engaging saidstem, the annular passage formed between the parallel surfaces of the concentric inletand discharge pipes being ot less cross sectional 4'area than that of th'efinlet pipe, whereby the pressure of water .in the vinlet pipe will be continued to the lower end of the discharge pipe, and will permit the valve to close noiselessly.

3. An inlet valve mechanism Jfor flush tanks comprising a valve casing formed of upper and lower members, the lower casing member provided with a central bore, internally threaded to receive an inlet pipe, said valve mechanism beingV provided' with a centrally located valve seat communicating with'the inlet pipe, said casing member beingprovided adjacent to its lower end with a bore of larger diameter than said central rvbOle, and meansforV attaching it to a dis-v charge pipe communicating with said larger bore, and adapted to surround the inlet pipe and form a discharge passage between said pipes, said casing membery being also provided'with vertical discharge passages eX- terior to the valve seat, communicating with said larger bore and adapted to communicater with said discharge passage between said pipes, said upper casing member provided with a transverse, vertical slot anda vertical aperture communicating therewith and coaxial with the valve seat, the slotted portion of said upper casing member" being' provided with registering horizontal apertures to receive a pivot pin for pivoting a iioat lever therein, said casing members having meeting annular clamping members, and one ot' said ,members being provided with exterior threaded portions, a flexible disc valve extending over said valve seatv and having its marginal portions between said. clamping portions ofrsaid casing members, a mushroom plug having a head engaging said valve in a Adirection to force it upon said seat, and a stemV extending through said vertical aperture in the upper casing memberinto 'said transverse recess, in position to engage said float lever, anda follower having yinteriorlj7 threaded portions for. engaging said exteriorly threaded casing member, `for clamping said casing members together upon'the marginal portions ot the disc valve. f

Y In testimony whereof. Ifatlix my signature,

PHILIP HAAS.

CTI

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