US1635010A - Flush valve - Google Patents

Description

July 5,1927. f 1,635,010

E. B. RosE FLUSH VALVE Filed March 4, 1925 2 Sheets-Sheetl Muiz Y QJ f ,MM

Julyf5", 1927. 1,635,010

E.. B. ROSE FLUSH VALVE Filed March 4. 1926 2 Sheets-Sheet 2 .Il .n

Patented July 5, 1927.

VUNITED STATES PATENT OFFICE;

ELIAS B. ROSE, 0F LOS ANGELES, CALIFORNIA.

FLUSH VALVE.

This invention relates to improvements in flush valves. y

An object of the invention is to provide an improved flush valve consisting essentially of a body in whichv is formed a valve seat, a closure for the valveseat and a dashpot for limiting the rate of closing movement of the closureupon` the valvel seat, these parts being so arranged in the body that the dash pot cannot have'itsoperation hindered by dirtwhich may be inthe fluid released by the flush valve. y v

Another object ofthe invention is to providel a flush valve Yhaving abody which is so constructed. aste provide an air trap which will relieve any tendency 4of causing Water hammer in the pipes, leading to the Hush lvalve. f.

. 'A rfurther object-,f of the i invention is to provide a flush valve of novel and simple construction and which has a noveland advantageous' adjustment, y enabling the valve to be'mounted in various positions.Y l

Y lVith the foregoing and other objectsl in '25 View whichwill be'made manifest inthe following deta-ileddescription and specifically pointed out inthe appended claims, reference is ,had to the accompanying drawings for an illustra-tive embodiment of the invention, wherein:

Figure 1 is arvertical section through the improved flush valve showing the valvein closed'po'sition,

- Fig. 2, is a vertical section V'takenon the line 2-2 of Figvl, f

Fig. 3 is a` view similar to Fig. 1 illustrating the valve as it starts to open, and

`Fig-.f1 isa view similartoFig. A3showing the valve in open position. A Referringto the accompanying drawings wherein similar .reference characters designate similar parts throughout, ther improved iush valve consists of a body formed of a lower section 10 and an l.upper section 11. The lower sectionprovides an outlet 12 and has an annular flange 13 formed upon its interior which provides a valve seat l14. On the upper section 11 there is formed a lateral inlet 15V and the upper endk of the upper sec- '50 tion 11 is closed by a hollow. cap. 16 threadedly mounted thereon. Onthe lvalve seatV 14 there is adapted to seat an' outer or major closure 17carrying a packingrlng 18'adapted tofengage the seat' anda packing ring 19- aordinga valve seat for an inner or minor .amount of clearance.

g, y Application yfiled March 4, 1926. Serial No. 92,262.

lower section 1U`of the body. On this spindle there is pivotally mounted ,a lever 26 having one end engageable with the head 23. The other end of the lever 26 is engaged by the lower end .of a'plunger 27 'recip'rocable in a compartment 28defined in the extension 25 byva partition 29. f This plungeris urged into its uppermost position by meansof a coil spring 30' compressed between the-v bottom of the partition 29 and the head Yon the plunger. On the top ofthe compartment 28 thereis threaded a 'bonnet 31 which-retains the lower end o f a handle 32 ,within the compartment A28 against the `head of the plunger 27. lAs shown in'FigsJB and 4 by rockingthis handle in any direction, .it will force the plunger 27 downwardly, thus rocking the lever 26 and lifting vtheV s`tem22. During theirst part ofy the .upward movement of thefstem, the inner 'or minor closure 20 is unseate'd,l enabling some of the fluid to pDass through the outer or major closure y17.

uring a continued upward movement .the head-'23 engages :the closure 17 and lliftsit from. the seat '14, thus permitting a large quantity of vwater to pass from the inlet-15 through the outlet 14. ln'the upper section v11 opposite the Vinlet .15 there is formed an .open topped cup 33 and a cylindrical pipe section 34 is mounted in this cup'Y and extends upwardly therefrom providing a cylinder for Athe dashpot.V A

vtop 'closure 35 is threaded into the topof the cylindert and a plu-nger rod 36 slidably extends; through the closure with a small Adjacent y the' bottom of the. plunger rod 36 there `is formed a shoulder against whichthe plate 37 is positioned. vA nut'38 is threadedonto the bottom of the plunger rod 36 Vand serves to compress a cup leather 39 between it andthe plate 37; v A coil spring 4.0 is disposed about the plunger rod 36 and s'compressed bef- 44 and the lateral outlet is tween the top closure and the plate 3T, serving to urge the piston ot the dashpot into its lowerlnost position.

At the forward side oli the cup 33 there is it'orined an outlet al in which a needle valve Il?, is threaded so as to be adjustable. This needle valve hns rather a long stein Ll-3 extending; through the outlet il so as to project a short distance into the cylinder of the dashpot. The outlet coninnuiicates with the interior olf u small cap ji-l which has its top closed and its (mtlet lo formed in its side. ln the side ol' the cylinder lllt 'there is formed u small ailierlnre lo for u purpose hereinafter to be described.

The upper end oit the piston rod lo .has u transversely cxteinlinepn :t7 mounted thereon, which pin has its einV f connected to the upwardlltT extending; arrns olf a lul-shaped yoke L18. The lower end ot the yolce has an aperture in it to receive the opper end et the stem Q2 and is held thereon by ineans of a nut 19, which provides a swivelled connection between the Lrohe fl-8 and the stem 22. It will be noted that the upper seition lll. ot the bodlt7 is adapted to be screwed down into the lower section l() against the [lange 13 and shilns 50 are positioned between the lower end ot' the upper section und the flange for :L purpose hereinafter to `be more full set forth.

T ie operation et the improved valve is as follows: Un liftingl the two closures l? and 2() by ineans of the pin 22, the yolte t8 is caused to litt the pistonrod 36, and thus cause-the `tluid, which enters the cylinder of the dnshpot between the piston rod lli und the closure to slip past the cup leather 39 so es to be disposed upon the under side of the piston of the dashpot. On releasing the handle the spring 30 returns it to its normal position, and the spring l0 tends to force the piston ofthe dashpot downwardly, causing the closures l"` and 2O to again seat. Because et the t'actthat the l'luidfis entrapped upon the lower side oit the piston, it inust pass out through the outlet -gl-'l around the needle valve es vapinn through the cap the needle 43 entends into the dushpot cylinder seine distance, it will prevent any sediment or other solid matter :lroin blocking the outlet 4l. Furthermore, as the top ot the cap dilis closed, any sediment which niiujht be in the water will not settle through the cu p und thus elogi' the outlet ll about the needle vulve. It will also be understood that the arrnnuje nient oit the dashpot ubore the .inlet l5 is such that any solid .material in the liquid will tend to settle inthe lower portion or the valve and not in. the dasllpot so as to hinder the operation et the dashpot.

The purpose of the apertures itil is to form an outlet :tor air which inaji be ent-rapped in the dashpot when the valve is 'initially installed, which air might influence the correct operation ot' the llush valve.

llt will be noted that the `hollow cap 1G encloses the upper end ol the dashpot and this cap will nornnillyforin un air trap above the dashpot, the level olf the liquid in the bod)7 being a short distance ubove the dashpot. Such beingv the case, the air entrapped within the cap le `tornis a cushion oliv a coinpressible fluid which will relieve any tendenov ot water hammer within the pipes leznlnrr;` to the inlet l5. rlhe purpose ott having` the body :termed of upper and lower sections with shinxs 531.) between the lower end ofthe upper section ll and the flange ll is to provide an adj ustnient. In the draw' ings the inlet l5 is illustrated as being di rectly in back oi the handle $52. However, by increasingl the number of shinis 5() or decreasing thcnl, as the case may be, the upper section can be tightened upon the lower section, and the inlet 15 can be caused to extend either toward the lett or toward the right ot the handle 32, or at any other angle, einihlingjr the flush valve to be installed in buildings where the plulnbing'has already been installed, or, in other words, enabling the flush `valve to `accommodate it` sel't to the plumbing; and not causing the plumbing to be so designed as to accommodate the valve. r Freni the above described construction it will be readily understood that a novel and improved `Hush Valve has been designed which is quite advantageous and which is ver);v etlicient in operation. e l

lt will be understood thatvarious changes in the detail of constrnctoninay be made without departing :trolnthe spirit or scope ot the invention as delned by the appended claims. v, l

lclaiinf l' l l. A llush vulve comprising` a body formed yet upper and lower sections, the lower sec- Y tion haring an outlet and aralve seat therein, a closure adaptedto seat thereon, means lor unseating the closure assocmted with the lower section, the upper section having a lati eral inlet and bengladjustable upon the lower section, whereby the position oi" the inlet with respect to saidnieans may be 'aried, and a dashpot mounted in the upper seetionythe piston of which is connected by ine-uns oit a swiveled connection to the valve closure so as to be operable thereby.

A flush valve comprising` :tbody ilornied o'l' upper and lower sections, thelower section having an outlet therefrom, an internal llunge in the lower section providing` a, Valve seat, a closure adapted to seat thereon, means for unseatinol the closure associated with` the lower section, the upper sectionhaving a lateral inlet, shiims resting on saidilange,

the 'upper sectionbeing provided vwith a threaded portion adapted tobe received in the lower section and bear against said shims whereby the position of the inlet with re,- spect to said means may be varied, and a hollow cap mounted on top of the upper section, providing an air trap as and for the purpose specilied.

3. A flush valve comprising a body formed of upper and lowervseotions, the lower section having an outlet and a valve seat therein, a closure adapted to seat thereon, means for unseating the closure associated with the lower section, the upper section having a lateral inlet, shims between said upper section and said lower section whereby the position of the inlet with respect to saidmeans may be v aried, and adash-pot mounted in the upper section, the piston of which is connected by means of a swivel connection to the valve closure so as to be operable thereby.

4. A flush valve comprising a body formed of upper and lower sections, the lower section having an outlet and an internal flange providing a valve seat therein, la closure adapted to seat thereon, means for unseating the closure associatedI with the lower sec* tion, the upper section having a lateral inlet, shims resting on said ange, the upper section having a threaded portion adapted to be received by the lower portion, the end of which is adapted to bear on saidy shims, whereby the position of the inlet with respect to said means may be varied, and a dash-pot mounted in the upper section, the piston of which is connected by meansv of a swivel connection to the valve closure so as to be operable thereby.

In testimony whereof I have signed my name to this specification.

ELIAS B. Rosie.

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