US1868316A - Flush valve - Google Patents

Description

July 19, 1932- c. l.. EsTERLY 1,868,316

'FLUSH VALVE Filed June 12. v1929 2 Sheets-Sheet, l

CHA/12 E5 575@ y July 19,' 193.2 c. L; EsTERLY 11,858,316

FLUSH VALVE Filed June 12. 1929 2 Sheets-Sheet 2 35" I Y* xml 54 36 37 (f1/Aufs! fri/P0 F/. 6. 29 ay MM( 6 uffi y Arr ,W4/5K i j justing valve utilized length lof the flushing c through the flush valve to actuated by the Patented July 19, 1932 UNITED STATES PATENT OFFICE CHARLES L. ESTERLY, 0F EAST CLEVELAND, OHIO, ASSIGNOR TO THE WELLMAN BRONZE & ALUMINUM COMPANY, 0F CLEVELAND, OHIO, A CORPORATION OF OHIO FLUSH VALVE Application kled .Tune 12,

This invention vparticularly relates to improvements in flush valves whereby the'adfor controlling the Y period can be actuated without shutting 01T the water from the main and also without any leakage; there are also provided a new and improved assembly of adjusting valve including a screenffor protecting the adjusting valve an improved type of piston which reciprocates in the main valve body and by the movements of which the iiow of water from the main directly the outlet is permitted or shut off, such new type of piston being formed so as to eifect the automatic washing out of accumulated sediment by the flow of water from'the main through the iiush valve; and* an improved vrelief valve guide or pilot by means of which the relief valve head is centered whenit is forced down upon its seat by a springafter being released from the pressure of the push bar which is flush valve handle; Other detail improvements will appear hereinafter and be fully explained by the specification and upon reference to the accompanying drawings. Y n The annexed drawings and the following description set forth in detail certain' means embodying my invention, such meansconstituting, however, but one of the forms in which the principle of the invention may be illustrated.

In said annexed drawings:

' Figure 1 is a central vertical section of the improved valve connected to inlet and outlet conduits of which fragmentary portions are shown, the several parts of the valve being in the respective positions occupied when in closed or non-flushing position;

Figure 2 is a plan View of the elements shown in Figure 1;

Figure 3 is a fragmentary horizontal section taken in the plane indicated by theline l i Figure 1 Figure 4 is a fragmentarv vertical section, taken in the plane indicated by the line 4-4, Figure 8; f

rFigure 5 is a Derspectiveview of arelief valve guide or pilot; f

1929. Serial N0. 370,386.

Figure 6 is a view similar to Figure 1 showing, however, the respective positions of the several valve parts shortly after the actuation of the operating handle of the valve Figure 7 is a central vertical section of a screened adjusting-valve assembly unit removed from the valve body;

Figure 8 is a side elevation of the parts shown in Figure 7 Figures 9 and 10 are horizontal sections, taken, respectively, in the planes indicated by the lines 9-9 and 10-10, Figure 6;

Figure 11 is a horizontal section, taken in the plane indicated by the line 11-11, Figure 8;

Figures 12'to 17, inclusive, are detached axial sectional views of the several parts of the screened adjusting valve assembly, prior to their assembling, the same being shown aligned in the order of their assembling, Figure 12, showing the adjusting screw packing nut, Figure 13, the adjusting screw proper, Figure 14, the packing gland of the adjusting valve body, Figure 15, the adjusting valve body, Figure 16, the adjusting valve protective screen, and Figure 17, a portion of the screen housing, the adjusting valve body shown in Figure 15 being provided with means forming the remainder of the screen housing, as hereinafter fully described; and

Figures 18 to 23 are elevations respectively of tie several parts shown in Figures 12 to 1 Referring to the annexed drawings in which the same parts are indicated by the same respective numbers in the several views, the chambered fiush valve body 1 is formed with a guideway 2 to accommodate the vertical reciprocations of a piston comprised of the top member 13 and the bottom member 16 which are threaded together, as plainly shown in Figures 1 and 6, the top member 13 alone sliding upon the surface of the guidewav 2, as also plainly shown in said figures. The chambered valve body 1 is formed with an internally-threaded boss 3 adapted for connection to a nipple 4 which leads to the water main. The valve bodv 1 is also formed with an externally-threaded boss 5 adapted for connection, through the medium of a nut j bottom 16 is sealed by ly-eXtended horizontal portion 18 piston top 4,13.

. sealing rpush rod parts after fully 28 and a nut gasket 29, to a conduit 6 leadingto the waste water outlet. Another eX- ternally-threaded boss 7 .provides means for the securing of the operating handle and to the valve body, as hereinexplained, and an upstanding boss 8 secured outsidethe'valve body 1 proper' provides means for securing the adjusting valve parts, whichA also will be hereinafter described in detail...-An annular.V rim 9 which surrounds. the chamber .21 connect-V ing the inlet chamber 10 and an outlet cham- .ber .10 forms a seat for the main valve element which permits theflow of the water directly through the valve body fonflushing purposes. An. internally-threadedl cap 11 covers the top of the valve chamber, an annular sealing, vgasket 12 being utilized, as plainly shown in Figures 1 and 6. The joint adjacent the connected screw-threaded portions ofthe piston top 13 andthe piston i means of a cup washer 18 which isformed with an annular inwardconfined between the bottom face of an enlarged bottom .portion 14 of the piston top 13 and the top face of an annular enlarged portion 15 formed upon the piston bottoinmember 16, this .cup .washer 18 being also formed 'with a downwardly-extended annular skirt 182 eloselyregistering with the surface of the guideway 2 beneath the peripheral sliding Contained within the piston is the'relief valve 19l mounted upon the top' of a refill plug 23. through the medium of a relief valve-washer 22 which forms the valve upon the plug 23, this relief valve 19.

l being ynormally heldin seated position by a relief valve coil spring 26 mounted at one end around the centralizing cap portion 31 of the relief valve 19 and abutting at the other end the spaced head ribs 27 andthe central hub or-head 27 forming parts of the piston top member '13. j Piston member 14 is formed with anupwardly-extended stopmember 272 to limit the opening movement of the piston.

The valve member proper which seats upon f the annu-lar rim 9.- is completed by the :piston seat washer2'4 contained within a countersunlr chamber 16 formed in the bottom of thepiston member16, said washer 24 resting upon va 'peripheral annular .v shoulder 30 formed on the-refill plug 23, the latter being screw-threaded above `lsaid shoulder 30'into the lower pistonmember 16, as plainly shown in- Figures 1 and 6. The relief valve is complcted by Cil a valve stem20 secured vat its top end' inthe spring-centralizing headl member 31 and extended downwardlythrough the reli-ll `plug 23 and the passage 21 and into the discharge lcondu'it10.r f In order that lthe relief valve head; member may be centered when*V the-valve is permitted to be seated under'the action 'of the spring 2 6, IV provide the valve `as plainly shown in Figure and seating means for the` reliefy stem 2O with, or form thereon,.a pilot or Y conical lower portion 48, the downwardly Y tapered surface of thisV lower conical portion 48S forming means. for centering the relief valve, inasmuch as the top portion 47 rthereof -isrectangular and the longer dimension of the top face 46 is substantially equal to the diameter Aofthe chamber in the refill plug 23,

4.. The side surfaces ofthe topv portion'47 of the guidey Vare trimmed olf plane to formthe vertical j which merge at their-lower ends into the top of the peripheral surface face` portions 47 Vportion of the conical lower guide member 48, as plainly shown in Figure 5.. Y It will be noted inFigure l that the annular bottom portion ofthe piston member 16Vis flared outwardly and downwardly and a 1s disposed below the 4center of the inlet passageway 10 v andV also in the vline of water trav-el through the passageway 10to the passageway 2.1. This particular lconstruction is for the purpo'seof enabling the flushing l.

water to wash off any sediment which'may have deposited upon the surface of thepiston part 16, and thus prevent the accumulation of sediment upon thev piston surface.

The valve actuating means are controlled through the handle 32 which is formedV at its innerY end with an enlarged flange member 33 whose outer, face labuts a correspondingly l shaped flange member 43 formed upon a hub member 42 secured to one end olf push bar .41.v The inner end of. this. push bar 41 abuts the relief valve stem 20, when the valve is in idle non-flushingposi-tion,l as shown in Figure 1. Thel 'flange members. 33 and 43 and the outer end of 'the pushy bar 41 are contained within the chamber ofa sleeve-37 closely fitted within themain body boss 7 and having an external'enlarged flange portion 35 .abutting an inner gaslretmember 36 disposed adjacent the outer face 7 of the boss 7,' the whole assembly being securely locked together through the medium of the handle retaining member 49V which engages an externally-threaded end portion of the boss 7 The housing for the actuating flange members 33 and 43 is 'completed by the bottom wall 37 of the sleeve 37 which forms an abutment for one end of a push bar spring 44, .the other end of said spring 44 encircling the hub member 42and abutting the pushbarflange 43'.

f A guide for' the pushbar 41 is formed by a housing portion 70 of the valve internally-threaded and adapted to cooperate bar packing nut 39 and a push bar packing member 40, as plainly shown in .Figures 1 and 6. i The wall of the body member 1 is formed adjacent the boss 8 with a' by-pass hole 50 which leads at one end into the chamber of the main body 1 above the guideway 2 and at the other end into the chamber of the boss 8. This boss 8 contains the adjusting screw 62 which is threaded at its lower end and adapted for engagement with and vertical adjustment in an adjusting valve body member 52. The lower valve portion proper of the adjusting screw 62 cooperates with seat portion 54 formed in the body member 52 adjacent the top of a hole 54 which connects a lower open-end screen portion 70 of the valve body 52 and side openings 53 opening into an annular chamber 51 contained within the boss 8 and into which the one end of the by-pass valve hole 50 leads. The screen body 52 is with the externally-threaded upper portion of a lower screen housing member 55 which is formed at its lower end with a plurality of side wall openings 56 leading into the inlet chamber 10. It is evident therefore that,

, when the adjusting screw 62 is raised from its seated position upon the member 54, there is an open passage for water from the inlet chamber 10 to the top of the chamber within the main body 1, the amount of communication depending upon the adjustment of the lower valve portion of the adjusting screw 62 relative to the seat member 54. A screen member 71 is positioned between the holes 56 leading from the inlet chamber 10, and the passage 54 leading from the housing member 70, the latter and the complementary housing member 55 being provided with annular groove portions in their body members respectively for receiving and seating the upper and lower edges of the screen 71, these Y groove portions being indicated by the number 68 in the housing member 70 of the valve body 52 and the numberV 69 in the housing member 55.

An adjusting packing gland 57 is sleeved around the valve body member 52 of the adjusting screw 62 and, through the medium of a follower 59 and a packing rubber 60 seated upon an annular ilange 61 formed upon the valve body 52, serves to hold the valve body 52 tightly within the chamber of the boss 8 and provides a leak-proof joint above the annular chamber 51. The lower face of the valve body 52 engages an adjusting valve liber gasket 66 which is seated upon an inner annular shoulder 67 formed in the body of the boss 8. The upper end of the valve body 52 is externally-threaded and engages with an adjusting screw pac-king nut 63 which covers and surrounds an adjusting screw packing 64 to prevent leakage along the adjusting screw 62. An outside cover member 65 is provided for the packing gland 57 and the packing nut 63 and the top of the adjusting screw 62, this cover 65 being externallythreaded at its lower end and engaging with an internally-threaded flange 8 formed upon the top of the boss body 8. The screen 71 serves effectively to filter the fluid which afterwards passes through the by-pass 50 and thus removes the probability of this by-pass and the adjusting valve parts and the guideway 2 being damaged or clogged by sediment. This construction particularly prevents the possibility of the clogging of the space between the adjusting screw 62 and the seat 54 and thus eliminates any disturbance of the adjustment setting. Furthermorathe particular screen assembly shown is easily applied and removed, economic-ally produced and installed, and very satisfactory in operation. v

I also direct attention to the fact that the adjusting screw assembly obviates any leakage from the chamber of the boss 8 when the adjusting screw proper 62 is actuated for changing the length of the flushing period without shutting oif the water from the main. This adjustment is effected by removing the cover 65 and turning the screw 62 by a suitable tool through the medium of the groove 62 in the head of the screw 62, the adjusting screw packing 64 preventing any leakage along the periphery of the screw 62, and the packing rubber 60 preventing any leakage along the inter-engaging screw threads formed upon the packing gland 57 and the inner wall of the boss 8.

It is well understood by those skilled in the art that the period of flushing is regulated by the time necessary to iill the chamber' above the piston part 14 with water which is by-passed through the conduit 50, and this period is regulated bv the settingof the adjustment screw 62. Tf this screw 62 is adjusted to increase the size of' the space between the seat 54 and the lower valve portion of the screw 62, water is by-passed through the conduit 50 in greater quantities and the time necessary for filling the chamber above the pistonr part`14 and seating the washer 24 upon the annular rim 9 is shortened and thus the flushing period during which the water passes directly from the fitting 4 to the fitting 5 is also shortened. Conversely, the adjustment of the screw 62 so as to make the spaceabove the seat54 smaller results in a longer iushing period.

lWhat I claim is:

1. A flush valve including a casing formed with an inlet and an outlet and a guideway; ama-in valve member formed with a guide portion operable in said guideway; a relief valve including an upper seatpoition and a downwardly extended stem; means for actuating said stem to open said relief valve;

means tendingtov hold the relief valve seat; anda aguide lmember secured-toftheupf' screw, said gland p er'pa-rt of said stem for centralizingthe -relief valve upon its seat; said guide member havingan upper rectangular portion with a dimension substantially equal to the diameter of the chamber in which thestem'is actuated', said `guide member havingalso a lower conical f portion.

' and:

2; A iiush valve including'a easing formed vvithanv inletfand an outlet and av guidevvay; a valve memberformed with a guide portion operable in saidfguidevvay; a manually actuatedA relief valve` Whose opening rrelieves the pressureA abovetlie aforesaid valvemember y permits the latter to, move upwardlyv in said guide portion to open; mea-ns forming a by-pass from the inlet to the casing-chamber above the valve member; an adjusting valve for yregulating the fluid passage through the by-pass; an adjusting valve body member formed With a seat 'portion' for the vadjusting valve; said'valve body member beingal'so formed With a 'bottom open end Vchambered portion having an upperannular groove section a screen housing threaded at its upper endlinto said chambered portion',v saidv hous-f ing being formed with a lovverannular groove lsectioa;-'and a cylindrical screenl seated at litsfends Within said grooves, said housing being formed with a plurality of holes communicatingwith said inlet and forming a Y part 'of said by-pass.

3. A iiush valve including a casing formed with an inlet and an outlet and a guideway; a valve member 'formed Witha guide portion operable in said guidevvay; a manually actuated relief `valve Whose Vopening relieves the pressure above the aforesaid Yvalve member and permits the latter to. move upwardly in said guide portion to open; an open-top lateral boss yformed integrally vvith theV casing* and having a chamber portion; a by-pass conduit formed in the Wall of the boss and oommunif eatingv with the casing Vchamber above the valve member and also With-thechamber in theboss; an adjusting valve body contained Within said boss'chamber and having a pasing. t

i f .Signed sage therethrough communicating with said inlet and also With thefchamber in the boss; a' packing gland sleeved around said valve body and having external screw-threaded engagement with the top portionof said boss;

a follower" and lpacking rubber belovvv said gland and in Contact -Wi'th the inner boss yW'all,'said valveY body being vvformed With an annular i'iange upon which said packing rubber rests; a screvv valve member adjustably secured Within saidfvalvefbody, the latter being formed With a'i'valve seat portion for said screw, thelatter extending outwardly beyond Vsaid valve body; leak-proof' packing surrounding the end of: said valve body and the adjacent portion of' said screw; and a removable cover secured tothe open topperto; its tionv` of saidboss and enclosing the top. of said by mefthis 13th day ofAMay; 192.9.. Y v CHARLES ESTERLY.,

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