US1066350A - Flushing-valve. - Google Patents

Description

E. G. WATROUS.

PLUSHING VALVE.

uPmoA'rIoN 111mm MAB. 1a, 1912.

1,066,350. Patent-,ed July 1,1913.

UNITED STATES PATENT oFF-Ion. Elim: Wamnous, or emesso', ILLINOIS.

@usarseuws noce-asa Paten-ted July 1, 1913.

To all whom it may concern f Be it known that I, EAR-L G, W'Arnous, a.

citizenA of the' United States, residing at Ch'- cago, in-'the county ofCook 'and State of Illinois, have .invented certsin ,newA mnd'use'- ful Improvements in Flushing-Valves, of

which the following i's a specification, reference bei'ng hadxtoV theuccompanying drawings, forming part of this specification.

My invention relates to that classgof llushing valves known as slow-closing valves,

which may be quickly opened to their full extent or substantially so, by' the movement of an easily manipulated art, to' produce a maximum' flow of water or a briefpe'riod, and then closed slowly topr'oduce a relatively prolonged and gentle flow gradually decreasing during the automatic closing of the'valve.

The novelty of my invention will be hereinafter more fully set forth',- and particle;

larly pointed out in my cla'n-is.l

In the accompanying drawingsFignre 1- is a vertical central section of my improved valve in closed position, some of its parts,l however, being shown in elevation and Fig. y

2 a similar view, with .the valve in open position. f

The same reference numerals ,are used "to indicate corresponding parts in both views.-

In the ,particular embodin'i'en't` of my invention chosen for the* purposes of 'the fo-regoing, illustrations, en exterior casing isn'ection hat one side with an outlet con-1 nection 5, and with a body portion 6 which is ofv generally cylindrical formand co-axial,

with the inlet 4, and open at its f'upper end.

A diaphragm 7, cast integral with the casing and transversely of t'lfiebody thereof below the outlet 5, separates the inlet-chamber 8` from the main chamber 9 and discharge passa e 10, but is provided with a central cir- 5 Acu -ar opening 11 which forms the valve -p'as- 5 A valve seat 12, con-g sage for the water.

sisting of a leather orother packing ring, is g compressed between the diaphragm (which isra'bbeted to receive it) and Athe contracted lower end of an inner cylinder i3 Whosel upper end is closed by ailanged head or cap i 14', and whose contracted lower. lend constig tutes a ring 15 which rabbeted to receive f the provided lin -its lower portion, Aabove the -1', yvith ports 17 for the free passage ring 12. The cylinder 13 is? into the upper end of said casing and is prvided with an internal depending a'nge and the upper endof the casing is confined of water through it.fro'rn the inlet 4 to the outlet when themain' valve'is open, and is clamped in position within the outer casing by means of a' screw cap 18 whichv is screwed which vbears upon the -upper end of the cylinder head 14, and also has lan outwardly .projecting recessedV flange Abetween which a packing ringl i The main valve comprises a circular disk 24', the edges of which are turned upward to bear against the valve seat 12, as at 25, and a. short cylindrical portion 26 fitting within-the ring 15 of the cylinder 13. An integral hollow stem 27 connects the valve 24 with a piston 28 working within the cylinder 13 and provided with a central internallyl threaded depending hub 29 into which the upper end of the valve stem 27 is Y, screwed. Win s- 30 integral with theV valve 24. and stem 2 servethe usual purpose of guiding the valve with respect to its seat.

Located within am annular recess formed 8% to receive it on the bottom of the main valve 24 is a'valv'e seat 31, the passage through which is co-axial with that throughi'the hollowvalve stem 27, anda supplemental relief valve 32 carriedby a valve stem 33 cooperates with said seat. The valve Stem 33 extends vertically through the valve structure to thev upper end thereof, Where it has. secured to it a push button which guided at its-lower end 35 in the cylindrical upper end 36 of the casing cap 18 before mentioned. A coiled spring 38 confined between the push button 34 and the head 14 of' the cylinder 13 yieldingly holds the push button and valve stem 33 and valve 32 in their upper position, with the valve 32 seat- -ed against its seat 31, and serves to return them to such position when they are de pressed therefrom and released. A pack E() Within the cylinder 13 and above the-piston 28 therein is a supplemental piston 39, l

which is pinned or otherwise rigidly secured to'` the valve stem 33, such 'supplemental vpisgton being so locaitedtt'lxat in the normaal posiof the 'parts Lit is slightly siee'p'axxz-teidV llrom the piston ias shown. Y The piston '1.19

39 is provided upon its upper side with a raised circular valve seat 41 'upon which rests a cheek valve 42 consisting of a llat disk loose upon the valve stem 33 and fre-e to rise and fall thereon and with reference to its seat 41. A series ,of openings 40 through the supplemental piston 39, Within the circularV valve seat 41, permit-free .passage of water therethrough in an upward direction, its passage in the opposite direction being prevented by the check valve 42.

A restricted and adjustable escape passage 43 for the water from the upper end of the cylinder 13, above the supplemental piston. 39, is'providedby a regulating screw.A 44 which is screwed into a threaded opening formed in the depending --flange of the cylin;

der head 14 at one side thereof and providedl with a tapered slot 45. A hollow boss 46 formed upon the exterior casing teoncen!A trically 'Withthe regulating screw- 44, and

normally closed by a screw plug 47, affordsj access to the screw 44 for the purpose :of ad-f j usting the same.

The operation of the valve, u nder the construction andl arrangement of parts above described, is as follows: A slight de*l pression of the push button 34 at the 'top of the valve serves to open the relief valve 32j at theunder-side of the main valve and perj mit free passage of water from the inletj chamber 8 through the hollow valve stem 27 to the upper side of the piston 28, asi well as to the-upper side of the piston 39.3

This pressure, exerted upon the upper side of .the piston 28,'Which is of considerablyV greater area than the main valve 24, will overcome the pressure of the Water against; the under-side of the main valve and un'-I seat the latter, theb gravity of the parts also The i pressure 1 assisting in the operation. upon the push button 34 being continued,

so as to hold the valve 32 away' from its seat 31 as the main valve descends, the latter will be moved downward by the pressure upon the upper side of its piston`28, aided by the Agravity of the part-s, until it reaches its 'fully open position shown in Fig. 2, at which time there will be a free passage of water through the. valve structure from the inlet chamber S to the discharge passage 10, the interior of the cylinder above the supplemental piston 39 being also filled with water which has passed upward into the samethrough the openings 40 in said piston. leasing. the pressure on the push button 34 the spring 38 will litt the valve stein 33 and valve 32 until the latter seats against ils seat 31 on the under-side of the main valve 24, as shown in Fig. 2, and thereby cuts olf `further passage of the water through (he hollow valve stem 27 to the upper side of Upon re Y of the main valve structure (t passage 43, the main valve 24 will be slowly lifted and closed by the action of the spring 38 -aided by the pressure and flow of the. water beneath and-around said valve.

valve stem 33, is the controlling piston in this upward movement of the parts, since said piston (and consequently the valve stem and relief valve 32,)` cannot move upward any faster than permitted by the escape of water through the restricted passage 43. In eventthe main valve, under the The vsupplemental piston- 39, fastened to the pressure and flow of the Water beneath and f around it, should at any time be moved upf Award faster than. the escape of the water from the upper end of the cylinder 13 per mits the piston 39 and valve stem 33 and valve 32 to move upward', and consequently be moved upward independently of and relatively to said parts, the valve seat'31 carried by the main valve 24 will belifted 'away from the relief valve 32,`Whereupon water under pressure will be instantly readrnitted through the hollow valve stemA 27 to the upper side of the piston 28 and serve to arrest such independent upward movement of the main valveand its connected parts, and cause the slowly rising relief valveto again be seated against its seat 31 and cut off further admission of water under pressure through .the hollow valve Stem 27 to the upper.-sid'e ofthe piston 28. .In'this manner the closing movement of the main,

valve is effectively regulatedv and controlled.

by means of the supplementalpiston 39 and the relief valve 32 and their control, in the manner described, of thead'mission of water under pressure tothe up erside of thefpis-` ton 28, with' the resultt at all hammerirlg' or chattering of the 'main valve, during its 'closing movement, is eliminated, and said valve moves quietly and smoothly. to its seat and cuts ol' the flow of water -without any objectionable noise.'

In many valves of this general character the main valve is opened, or at least unseated, by direct manual pressure, and against the full head of the water exerted upon the entire area of the main valve, with the result that a very considerable manual pressure is required to open the valve. In my improved valve all the manual pressure required to open the valve-is an amount sufficient to depress the push button 34 against the resistj ance of' the coiled spring 38 and the comparatively slight pressure of the Water exerted against. the under-side of the small relief valve 32, so that the valve may be opened with much greater ease and with the exertion ot' only a small fraction of the manual pressure required in the other valves described. Furthermore, inasmuch as the valve stem to which the push button is secured carries abutments upon opposite sides e piston 39 am@ if. ma am relai verve :nauw in uw main valve is placed to a considerable extent under manual control of the operatot, so that if? it sticks or movesv sluggishly it ma be forced downward or pulled 11p` Ward y manual manipulation othe push buttonV y After the lvalve has-been opened and been allowed to close the water in the up r end of the cylinder I3, above the istons 28 and 39, quickly escapes 'around saldA pistons'l andr out through the ports 17 throughv the discharge passage 10, with the' result that in the normalco'nd-lftion of the valve the cylinder in which the pistons `work is free from water, and there'is therefore l'ess tendency to the accumulation of products of' oxidation and other accretions which tend to interfere with'j the operation of the valve andlo limit the period of' its efficiency than there is where the cylinder in. which the piston works is' normally filled with Water.

I claim:

l.' lna @usb-ing valve, the combination of a. cylinder, a piston therein, a main valve connected to said piston, a supplemental valve controlling a passage leading from the pressure supply through the main valve to thev cylinder, a supplemental piston located inthesamecylinder as themain piston and connected to vthe supplemental valve, and

. `means Vfor manually opening the supplemental valve; substantially as describe 2. In a ilusbingvalve,the'coinbination of a cylinder, a' piston therein, a main-valve having a tubular valve stem, connecting it with said piston, a sup lemental valve controlling a passagelea ing from the inlet side of the main .valve through-said'val've and its tubular stem tothe'cylinder'and having a stem extending longitudinally through the same and through thecylinder to the upper side Yof the latter, anda supplemental piston fast up'on the supplemental -valve stem above the main piston and Within the same cylinder ;'l substantially as described.

3. lin a iushingA valve, the combination 'of acylinder, la piston therein, "a main valve lla-vinga tubular stem connecting it vvith said piston, a su plemental valve having a Av alve-stemexten ing longitudinallyl through the main valve and itsetubular-stem 'and the cyli-'nder to the upper side ofthe latter 'and operating to control a passage leading/from 55 the-pressureY supply through the main valve and its tubularfsie'm to the cylinder,^a supplemenztal'piston fast upon-the supplemental valve stem above the main piston andvwithin .the same` cylinder-, a push button upon the upper endlof' the supplemental val-ve stem "for depressing the latter to open the supplemental. valve, and a spring operating to close said lsupplenrental valve; substantially as described, G5

- 4. Inaiiushing'valve, the' combination of a cylinder, a piston. therein, a main valve connected to said piston, a supplemental valve controlling a passagle the pressure supplythrong l the'maln valve to the space Wlthin the cylinder above the main piston, a supplemental piston located wit-hin said space in said cylinder andgconleading from structed topermit the' waterfto freely. pass it Y in an .upward direction but not in the reverse direction, and a manually operable valve stem connecting said supplemental 'piston with the supplemental valve; substantial-ly as described.

5r Ina fiushing valve, thell combination a cylinder, a piston therein, a main' valvehaving a tubular valve stem connecting it? with said piston, a supplemental valve controlling a passage leadln from the inlet 'side of the main valve throug said valve and its tubular stemto the space within the cylinder above the main piston, a supplemental piston located. in said space withln the'cylinder above the main piston and constructed to permit the water to pass it freely in an upward directionbut notin vthe reverse direction, and a`manually operable. valve stem extendin longitudinallythrough .the cyl- Vinder an the tubular stem of the vmain valve and having the supplemental valve and the supplementalpiston secured to it below "the main valve and above the main piston, re-

spectively; substantially as described.' v

6. In allushing valve the combination of a cylinder, a pistonfftherein, a mainvalve f'havin a tubular'stem` connecting it with valve stem extending lclingitudinally'throu'` the main' valve and its tubular stem and tile cylinder to the upper side of the'latter and operating vto control a'passage leading from the pressure supply througll'the main valve audits tubular stemto the cylinder',1 a supplemental piston fast upon the supplemental valvestem, above the main piston and Within the same cylinder and constructedito permit the water to freely pass it in an upward di- Vrection but not in the reverse direction, a

vpush button upon the upper end of the sup-v plemental valve stem for depressing the latter to open the supplemental valve, and a spring operating to close -said 'supplementa valve; substantially as described.

7,. In'a flushing valve,'the combination of j 'a cylinder 1n open communicatlon. atints I-OO saidpiston, a supplemental valvehaving a 4it in an upward direction but not in the 8. In a Hushing valve, the combination of a cylinder in open communication at its the supplemental valve stem Within the cyl` lower end with the outlet chamber of the valve, a piston in said cylinder,'a main valve controlling communication between t-he inlet and outlet chambers of the valve and -having a tubular valve stem connecting it with the piston, a supplementalvalve controlling communication through, said tubular valve stem between the inlet Chamberland the space above-the piston Within the cylinder, a supplemental piston located in' said space above the piston within the cylinder and constructed to permit the water to freely pass it in an upward direction but not in theI reverse' direction, the supplemental valve stem extending longitudinally through the tubular stem of the main valve and through the cylinder and having the supplemental valve secured to itbelow the main valve and the supplemental piston secured to it above the main piston, a push button upon the upper` end'of said valve stem, and a spring exerting an upward pressure upon said push button and valve stem; substantially as described.

9. In a flushing valve, thc combination.

of a cylinder, a piston therein, a main valve connected to said piston,- a supplemental valve cor Lrolling a passage leading from the pressure supply through the main valve to the cylinder, a supplemental piston connected to and moving withv saidA supplemental valve within the cylinder, a check valve controlling passages through said supplemental piston, and means for manually opening the sup lemental valve;` substantially as descri ed.

10. In a flushing valve, the combination o fa cylinder, a piston therein, a main valve having a tubular valve stem connecting it with said piston, a supplemental valve controlling a passage leading from the pressure supply through the main valve and its tubular stem to the cylinder and having a stem extending longitudinally through the same and through the cylinder to the upper side of the latter, a supplementalpiston fast upon inder, and a check valve controlling pas sages through said supirilemental pist-on; substantially as iescribed. v

` 1l. In a flushing valve, the combination of the cylinder 13, the piston 28 therein, the main valve -24 having the tubular stem 27 connected at its upper end with the piston 28, the supplemental valve 32 'controlling the passage of water from the inlet to the upper side of thc Apieton 23 and having a stem 33 extending lougitiulinally through 'the main valve and its tubular stem and the cylinder 13 to the upper side of the latter, and the supplemental piston 39 fast upon the valve stem 33 above the main piston 28 Within the cylinder 13; substantially as described'.

12. In a iushing valve, the combination of the cylinder 13, the piston 28 therein, the main valve 24 having the tubular stem 27 connected at its upper end to the piston 28,

the valve stem 33 extending longitudinally through the main valve and its tubular stem and the cylinder 13 to the upper-.side of theV yrnain valve 24 having t-he tubular stem 27 connected at its upper end to the piston 28, the valve stern 33 extending longitudinally through the main valve and its tubular stem and the cylinder 13 to the upper side of the latter, the supplemental piston 39 fast upon p the supplemental valve stem 33 above the main piston 28, the check valve 42 controlling passages through said supplemental piston, the pushbutton 34 upon the upper end of the valve stem 33, and the spring 38 interposed between said push button and the cylinder 13; substantially as described.

14. In a flushing valve, the combination of the cylinder 1 3 having the contracted lower portion forming the ring 15 and provided with the ports 17, the piston 28 in the cylinder 13, thel main valve 24 connected with said piston by the tubular stem 27, the supplemental valve 32 having the stem 33 extendingthrough the main valve and its tubular stem and the cylinder 13 to the upper side of the latter, the supplemental piston 39 fast upon the supplemental valve stem 33 above the main piston 28 and the check valve 42 controlling passages through said supplemental piston 39; substantially Astem 33 above the plain piston 28, the check Valve 42 controlling passages through said supplemental piston, and the push button `the main ing 6 and having the contracted lower por-l tion forming the ring 15 seated upon the diaphragm 7 with the interposed valve seat 12, and provided with the ports 17, lthe cap 18 screwed into the upper end of the casing .6' and engaging the upper end of the cylinder 13, the piston 28 in the cylinder 13, the main valve 24 cooperating with the valve seat 12 and having the tubular stem 27 connecting it with the piston 28, the supplemental valve 32 coperating with the valve seat 31 on the under side of the main valve 24 and having the stem 33 extending longitudinally through the main valve and its tubular stem and Jthe cylinder 13 to 'the upper side of the latter;I and the supplemental piston 39 fast upon the stem 33 above piston 28; substantially as described. f l l 17. In a tiushing valve, the combination of the outer casing 6 having the inlet 4 at its lower end and outlet 5 at one side and provided with the diaphragm 7 between'the two, the cylinder 13 located within the casing 6 and having the contracted lower porv tion forming the ring 15 seated upon the diaphragm 7 with the `interposed valve seat,

12, and provided with the ports 17 the cap 18 screwed into the upper end of the casing 6 and engaging the upper end of the cylinder 13, the piston 28 in the cylinder 13, the main valve 24 coperating with the valve seat 12 and having thetubular stem 27 connecting it with the piston 28, the supplevmental valve 32 coperating with the valve seat 31 on the under side of the main valve 24 and having t-he stem 33 extending longitudinally through the main valve and its tubular stem and the cylinder 13 tothe upper side of the latter, the supplemental piston 39 fastupon the stem 33 above the main piston 28, the check valve 42 controlling passages through said supplemental piston, and the push butt-0n 34 and spring 38 at the upper end of the valve stem 33 for opcrating the latter; substantially as described.

18. In a flushing valve, the combination of an outer casing 6 having an inlet 4 at its lower end and an outlet 5 at one side and provided'with an intermediate diaphragm 7, the cylinder 13 located within the casing 6 and having the contracted lower portion forming the ring 15 seated upon the diaphragm 7 with the interposed valve seat 12, and provided with the ports 17, the cap 18 screwed into the upper end of the casing 6 and engaging the cylinder 13, the pist'on 28 within said cylinder, the mainv valve 24 comprising the disk `having the upturned outer edge 25 for engagement with the valve seat 12 and provided with the flange 26 and the integral wings 30 for guiding it within the ring 15, the tubular stem 27' connecting said main valve with the piston 28, the

supplemental valve 32 coperating with the seat 31 on the under side of the main valve and extending longitudinally through the latter and its tubular stem 27 and the cylinder 13 to the upper side of the latter, the supplemental piston 39 fast upon the stem 33 above the main piston 28, the check valve 42 controlling passages through said supplemental piston, and the push button'34v and spring 38 at the upper end of the valve stem 33, within the cap 18, for operating the supplemental valve; substantially as described.

19. In a flushing valve, the combination of the outer casing G having an inlet 4 at its lower end and an outlet 5 at one side and an intermediate diaphragm 7, and provided near its upper end with the tubular boss 46 closed by the screw-plug 47, the cylinder 13 located wit-hin the casing 6 and having the contracted lower portion forming thering 15 seated on the diaphragm 7, and provided with the ports. 17 and having also a restricting escape passage 43 from its upper end controlled by a regulating screw 44 in axial line with the tubular boss 46 and accessible 'thereto upon removal of the screw-plug 47,

the screw cap 18 forming the upper'end of the outer casing and engaging the cylinder v13, the piston 28 within said cylinder, the

end of the valve stem 33 for operating theY supplemental valve; substantially as described.

EARL G. WATROUS.

l/Vitnesses T. J. KAUFMAN, ROBERT DonBERMAN.

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