US1654870A - Flushing device - Google Patents

Description

Jan. 3,- 1928.

M. FREMION FLUSHING DEVICE Filed April 17 1925 R O T N E V N vcwfl'ufleanm yin-W ATTORNEY Patented Jan. 3, 1928.

* UNITED T TES I I 1,654,870 PATENT) OFFICE.

MAURICE FREMION, 0F rams, FRANCE.

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Applicationfiled April 17, 1925, Serial No. 23,968, and in m iui 4, 1924.

The present invention relates to flushing devices, and more particularly to devices of this character whicl. are utilized in conjunc tion with {L hQIIllBtlCElllY-SGZLlGCl tank, wherein the water is subjected to'a certain amountiof pressure exerted bythe air contained in the upper part of the tank. I

In tanks of the above type, the compression of the air is effected by the feed water which is supplied under pressure to the tank from the main; and the objects of the invention include the provision of improved valve -n1'eans for controlling the supply of feed water and also the subsequent flushing ac- The air valve is -automatically closed imme diatelythe flush starts by the pressure created by theinitial descent of thefiushing water which drives theair ahead'of it and forces a portion of it to act on and close the valve. The actual compression of the air in the tank is, of course, effected by the incoming feed water, when the water supply valve is opened after a flush has been completed. n

An embodiment of the invention 'is illus trated in the accompanying drawing, the single figure of which is a vertical sectional view, with parts in elevation, showing the invention installed in a vertical conduit or casing that is interposed in the piping con necting the usual hermetically-closed water tank or reservoir and the bowl; representation of the latter elements being omitted, however, as not being involved in the actual invention and, hence, as unnecessary to its understanding. I I

According to the present disclosure, the aforesaid casing, which takes the form of a tap and is generally designated 1, comprises an upper cup-shaped portion I which is internallythreaded at its upper end to receive.- in this instance, a regulator Kthat is con nected to the bottom of the tank T. The regulator is constructed to permit communication betwecn the interior of the tank and the cup; but it forms no part of, and is not essential to, the invention and it is usually taking place.

replaced by a pipe connection of some character which is'threaded at lts loWer end into the cup and which likewise provides for com- I munication between the aforesaid parts.

The cup I has formed on one side a lateral nipple'J to which is connected a pipe (not shown) that supplies water under pressure from the main, and in this nipplethere is mounted a'horizontal tube H that opens into a housing G arranged centrally of the cup. Housing is open at its bottom and has slidably fitted in ita valve member comprising upper and lower head's D,'D, an intermediate grooved or recessed portion F and 'a closure shoulder E for coaction with the which latter controls the flush and is slidably fitted in the neck portion 1 of easing I, such neck being located between the cup I and the lower discharge portion or spout I of the casing. Valve A normally occupies a lowered or closed position in neck I so as to shut off communication between the cup. and spout and thus prevent flushing from It is adapted to be raised from this position (which it resumesautomatically by gravity) in order to permit the flushby means of a cam or eccentric sleeve G whereon it constantly rests at its lower 7 end; this cam sleeve being mounted on a horizontal shaft B which is journaledin the upper part of the spoutl and is operated by an external handle B. c

Assuming, then, that the various parts 00- cupy the normal position represented in the drawirn with the valve A closed and the inlet oi supply valve D, 1). open, water will flow through the nipple J and tube- H and.

into the groove or recess F whence it passes into the cup I, as shoulder E is then spaced from the housing G. Consequently, the cup will first be filled and then the water will flow upwardly through the regulator K (in this instance), or through the connecting pipe if used'instead of the regulator, into the water.

the tank which, as previously stated, is hermetically sealed, so that the entrance of the water will serve to place the air in the tank somewhat under pressure. lVhen handle B is operated to raise valve A into open position, the valve D, D is likewise raised and, hence, shuts off the supply of water to the cup, the flush then taking place with the re-- quired force due to the elevation of the tank and to the pressure of the air therein upon It is to be understood that the position of the valve unit A -D, D depends solely upon that of thecam sleeve Cin other words, upon the handle B-so that the duration of the flush is thus placed entirely under the vcontrolof the operator who may manipulate the handleat will to raise or lower the valve unit.

In order to regulate the supply of air to the tank for the purpose of maintaining the desired pressure therein, an automatic valveeontrolled device may be provided; such device preferably comprising a plug K which is threaded into an opening .in the enlarged upper portion of the spout I of the easing and which is itself formed with a threaded seat to receive the reduced end of a smaller plug M. The latter plug is provided with a cap 0 having an inlet port l and is further provided at itsinner side with a valve seat N for a conical valve N, the stem of which projects outward through a bore or passage M of substantially larger diameter formed in the plug. The main plug K is formed with an axial bearing opening wherein one end of shaft B is journaled, and in the wall of this opening there is cut a spiral air passage L leading atone end to the interiorof spout I and at the other end .to the interior of the valve seat N. i v

Due to the above-described arrangement, it will be apparent that when a flush oc curs, the passage of the water through spout I willset up or create a suction action or partial vacuum therein, the effect of which will be to draw valve N in the direction indicated by arrow 7" into open position, whereupon air flows through port P, passage M, seat N and passage ll into the interior of the casing, whence it passes into the tank and is finallycompressed therein by the water. The air valve N will remain open throughout the durationof the flush (in fact, it will not be closed until the next flush is initiated, as hereafter 01iplained), and during this time air will continue to flow into the casing and thence into the tank until equilibrium is established between the pressure inthe tank and the atmosphere. The passage of the air to the cup is, of course, permitted since the valve A remains in open, raised-position until the operator releases the handle. It is further to be understood that the descent of the water through the spout incidental to a i'lush first of all drives the air aliead of it, and forces some of it outward through passage L so as'to close valveM; the suction action and resultant opening of the valve occurring slightly later. Also,'the compressing of the air in the tank by the iii-coming water does not take place until the flush has been completed and the com pound valve restored to its normal position to close the main valve part A and open the water-supply part D, D.

I claim as my invention z. r

1. A flushing device, comprising a casing, a flushing valve therein, an operating member forsaid valve, and an automaticallyoperating means under the control of the flush for admitting air into the casing; said air-admitting means embodying a plug mounted in the casing and provided with an aperture that communicates at one end with the atmosphere and opens. at its other end into a valve seat, and also with a spiral pas sage that communicates at opposite ends with the interior of the casing and the valve seat, and a valve in said aperturemovable into and-out of said seat to control the passsage of air through the aperture into the casing.

2. A. flushing device, comprising a casing having a tubular water inlet extending into the interior thereof and adapted for connection to a source of water supply under pressure, said inlet having its inner .end enlarged vertically to form a housing which is open at its lower end; a valve unit embodying a valve member slidably fitted in said housing to control the passage of the *water through the inlet and a separate valve member to control the flush; the water inlet valve member con'q'ufising spaced'upper and lower heads, an intermediate grooved portion and a shoulder below the lower head for closing the open end of the housing; and a member cwperating. directly .with the flushing valve member valve unit bodily.

ture.

MAURICE Farmer.

In. testimony whereof I aiiiXimysignd' for operating the.

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