US1468619A - Dry-pipe valve - Google Patents

Description

Sept. 25, ma. mmm@ c. ADAMS, JR

DRY PIPE .VALVE Filed June 9, 1920 Z7 l l j d, i: l l 'g Z /0 E 3a y 7' 5A 'Z2 fa' `2,2 f7 I? 3 l ,2f x X iwf- Z :A zy

i l l l fihss @s 2 152.0611 iwf:

y -@M/ al Mdam elle,

Y prises a housing` 1 y p toforelrnoivn, which housing provided intricate, hea

eis-atomare CHARLES ADAIlS, JR., 0l? W'EEHWKEN, NEX?? JERSEY.

Application, filed June 9,

n cation. p

This invention re are utilized in d ttes to dry Valves which Vgips systems, and comenerally olli the 'type herefor manually the valve and for vcleaningfout purivith' hand holes. not shconT cil-.osiimA i poses.kr A principal `teatro-:e of my device is the neiv and improved valveV action control wherebyr the valve is held locked Alor instant release; is capable of quick and i manual closure; automatically res tor all leakage and slight variations et water pressure; is simple in constructioi'i, aud has a new teatiu inV a combined valve seat. both perlorming in single itunetion to a sin 'le end, although tlie'individual functions oi ch lve are 'for different purposes. This cature is ne and is not shown at the present time in any type Vot niet or dry valve. i

inother featureand economic advantage is' that in dry valves oi this type, the valve, housings are very large on account ot' the y y and ungainly valve mechanisms heretofore used, whereas. in the present'structure', the valve is so cinnpactV and simple that it' requires less space to .inoperly operate inland thereime the valve body or i.

alle r qu an ot' Fig'. 2.

valve seats'l) D la! housingl is made coi'respondingly smaller,AV Y y oi iron ,i :and thereby tying up poslte edge DRY-rIPn VALVE.

ieee. sei-iai No. 337,735.

A- Figure 4, is a fragmentary cross-sectional .vievvoi' one'ot the combined,valves-showing a valve movement expediting eaturethereof.

Figure 5 is a detail vertical sectional view ofmone ot the diaphragme showing` its arrangement and attachment to cooperating parts ot the device.

Similar reference characters or numerals denote similar parts throughout the several views.v Y

ln the present invention the main valve l, which is an airsvalve is carried by a pivot Q supported by suitable lugs 3, which are o r may be integral with the housing Ll. The

jhousing l has an opening .A therein whereby air pressure in the chamber 5 ot the main housing l may pass therethrough, there to "react upon the convoluted or accordion dlaphragm 6 which is .firmly connected to the valve member l at 7 with an air-tight fit, and the lower end .ot the said diaphragm beingl alsoirmly connected at 8 with a nonflexible floating-disk or diaphragru'i member .9. It Will therefore be 'noted that the non- HeXible disk or dizmhragm member 9 constitutes a closure for the opening between the 'or mentifuied, the, said y Y dion diaphragm 6 coactinp; Withthese. tivo elements to make such closure extensible. The valve member l is provided With an inclined seat B which conconvolntod or accor y tacts with a corresponding inclined valve seat D upon .the housing member and is provided with arubber, or other like flexible Washer-closure member E therein. the said member E being carried by the valve member l by reason of being rigidly atlixed thereto and held in position by afmetal washer l() which may be riveted or screwed in a suitable manner. The extended edge of the Vv-.asher-closure member E because 'of its flexibility permits downward movement of the valve member l and yet maintains an air-tight connection between the valve member l and the-inclined seat D, and at its opl engages the sont D sr'lbstantiallysimilarly to the seat D.

. lThe floating,y closure-disk 9 is arranged to threadedly receive therein the tapered shank ll ot atoggle bar l2, the lower end oit Which is so grooved or contoured as at l2",

. sition in the contoured portion or groove 12V by the tension ot a circular split spring S, which engages projections or stops 15, Fifi.

3, located about midway oi the toggle arms.

' The outer ends 16 ofthe togglelarnis 14;/- extend through a lever-collar, later' descibed, and are arranged itor engagement with a locking-groove 17 which is located in the vwater duct or chamber generallydenoted by F,whioli is at the VWater side ofthe dry `valve housing and Vnear the upper.. endV thereof. "f A Adjacent the said locking or toggle grooveV 17 vis arranged a secondyalve seat 18 upon fl which isseated a toggle valve or disk 19 having a downwardly extending toggle Ylever, collar 20 which is provided, with a seriesof apertures or openings 21, Figs.

2 and 3, through Whichthe toggle arms11 .protrude'tor engagement with the locking,

groove 17, andthrough Which apertures 21 the action of the toggle arms at their outer ends is controlled. Between the ifioating closure member 9 and the Water closure disk or valve 19 there is rigidly affixed at the upper end 23 thereof to the diskclosure member 9, and at the lower end 24V thereof to the Water closure disk or Valve 19 in an air-tight manner, a secondary or diierential convolutedV or accordion diaphragm 22, through the center ot which passes the toggle bar orstiutv 12. r1`hislast arrangement*per-V mits ot tree floating action of the toggle bar or strut 12 `which is rigidly connected to the diskV or floating diaphragm 9, thus eleeting a repose ot the water Valve 19 uponits seat 18. The :secondary diaphragm 22, besides acting as a ,flexible connection between the disk closure member 9.and theV toggle valve 19, ayoidsthe useiv of a Water excluding means or stuihngfbox- 'forthe stem 12, .the

l bwater being allowed to pass within the diaphragm 22 but beingexcludedtheieby rfrom the chamber 5A.

vltfw'ill therefore be obsei'vedthat there are {hreenialn elements combining to valve the VWater end F ot thedeyice trom the air pressure chamber 5, and these consist generally in the valvenicmber 1, With its connected flo-ating Vclosure disk member 9, the' Wat-cr closure i'alye 19. and its floating coii- I nectionriiitli the said iiieu'iber 9, and theV togglo members let` whereby the entire valve vsembly is Vlocked togglewiso to the Vdry- .valve 1. Y n i t isvordina-rily necessary in dry valves for lire .extinguishers such those'jto Whichnthisf valve is adapted tor use, to have a fluid drain oiisome kindin the intermedia-te or atmos- Y j phere chamber, but'it has never been possible 1 ineseie y Y f f l to'place thissoi't Vof drain cont-rol in valves' oi vthe usual iyell-known construction,Whereiii the present instaiiceythis neimand ini- Y proved type of yvalve lends itself very readily to the proiiisioiioit' means whereby the chainbei'f knoan zas theV atmosphere chamber and which istorined betiieenjthe elements 1 and 19, may be drained constantlyfin normal leakage oit Water which nia-y occur between vthe yah scat andthe yalve'meinber 19',

` inoper-itiye position Wli'e'i'eby tol take away This drain as Z may belocatedat thelower point oit' the valve housing and is cen-*rolled f lr fi yatedin the drainopeningZ, andes in Fig. 2, u; is proi'fided Witharloc groove theyalve 19 is in closed Viijioperaiie the ta ifs. not shown., the lug lNfis in engagement the groove X, Fig. V1 ,.fintl thereby holding theyalve Y from its seatin` a'liniited amount,and in such a manner asto'permit the chamber 5^ `to be continuallyopen to atmosphere.

.1 -t'urther cooperating means is provided Whereby the said Valve Y may be held from Volii the seat, permitting the draining operation to occur. and consists in proyidinothe said valye 'i with a lower stein U which may be integral therewith, and a .short bent spring V which is affixed byany suitable,

means to the Wall of the housing and bearing against the stein ot the 1Jalye Y., the eii'ect being? that, when the valve Yds Vin operative position toi" draining,as shown in Fig. 'lithe entire valve Y isthrustto oneV side ol the drain Z, so that, While the groove K oi" the valve Y is in engagement Ywith the lug W. the stein thereo'lris also inV engage-v ment with the sideY ot the aperture Z through the combined side thrusts o'fthe'lugjlv and the spring V. Upon loweringvoi the pressure Y in the air chamber 5, by reasonot operation ofseme oin the sprcaders or sprinkler heads,

rmt Shown 'a lifting action 0f: theyalye 19 is permitted." and this causes the `lug N @n the yalye18 to disengage the groove oi",V

a hell :tace Yclosure memberlgy Wl ich is- Y *f shown..V

iioY Y' the faire Y, the Valve Y lifting slightlyin the meanwhile andE thereafter, dueto the" pressure ofi." Huid admitted y chamber 5A, the

valve Y is forced downwardly upon itsseat',V 4as shown in lig. 2., thereby closing the. .Y

chamber 5A aga-inst loss o fwaterthroughthe" drain aperture Z. Aft the same time, inthe yalve "19 should fallback upon itsseat, Vit Y be preyented troniln'fiakingA a` Acomplete will closure by .reasonV ot itsY engagementwith IYthetop o' theyalife'YQas shown at Fig. 2.

`Thisaction Willi leave the valve 19 unsealed without itullcentact'with the seat and therei'ore in ,positionV Where itfmustrbe Vmanuali-y resetin order i 'lor further use YLeeaeio to insure itsproper action provide for control oi' the mechanism under loss of .air pressure in the chamber `which would act to unseat the valves 1 and 19 only partially, or in theevent that the 'toggle-arms 14?' for some reason are tardy in releasing but allow partial unseating of these ivalvesV an auxiliary or secondary `valve :is provided having a. stein 26 With an extended upper end 27 which engages a recess 2% and a spring 3.0 is arranged around the unseating of the valve 1 9, Will'lift the closure Y s teinf26 abuttingV the upper side of the head.

f d `the under side ofthe closure disk` member. Y), the tendency of thespring 3 0 beingto force the head .29 down intofnorn'ial engagementwith theupper vend of' an aperture formed through the valve 19'; the purpose beingthatfthe pressure of ivater admitted to the chamber lgdue to the partial Y member Q suiiiciently to unseat the valve 25 'ifroin the aperture 3l, the valve 25 being Yreciprocatable in the aperture andrecess 28,

andY vvill permit passage of water by 'means oit the aperture 31 into the chamber 5A, the

-valve Y normally'being open and allowing escape of the atmospheric air 'from the chamber 5^', Which Water by adding to the pres- "'sure'o 'i the VWater entering by means of the partially unseated valve 19, together with the Water-pressure upon the valve 19 from he jhamberl, will completely unseatv the Y 'valves 'i9 and 1 lor -.Full entrance oi"l Water to 4:0

,the Vffiiamber 57 the valve Y as the valve 19 is lifted or unseated being thercbyseated and preventing escape of the Water by the drain Z. n

f Inthe modiiiedform of.' device shown in Fig. 4,1 'the toggle-bar or strut 12Vis provided with a`disk or valve member 32` lo-Y cated somewhat above lthe contour or groove 13: which disk `or valve meinberleng ges a circular recess or seat 33 inthe upperiace of thevalve 19. The secondary lor dir'erential diaphraginv 22, through the center of' which )asses the tO'SIQ'le-bar or strut 12 isl ailixed u v. s

a in an air-tight manner at its upper endA to the dislrgclosure .member 9 Athe same as in the other form of my' dev1ce,rbut is ailixed in air-tight manneriatrits loiverend. as 34, to

the ring or :valve member 32. the WaterT pressure valve25 beingl omitted in this form f eo begin to bevdislodged orfdisengag Vcontour or groove lthrough upward moveo't my device7 the inte-rior ot thediaphragin V22 beingl openat `the bottom jbut closed ati the top, and the purpose ofjthis 'form being Yto1 expedite 'the ventr ance Ior `Water into ,the i chamber .555 as soongas theto fflefarinsld meut oit the toggle-bar or strut 12, due

'groove oit' the top-Q.

Vthe valveseto open n the distending or dilating oi the diziplira 22Aand 6 upon lessening oiE the air fessure in the chamber 5. and providing an` openeing oriwater admittingmovement ofv the ring orvalve member 'from its seatf'l,

Vand thus tending to quicker opening o? the rvalve 19.

ln operation the valves 1 and 19 are seated or closed by manual operation through a hand-hole or other suitable opening. not shown, in the'housing 4L the diaphragms (i and 22, tlf Areby being slightly compr sed l and thus causingdownward movement of the toggle-stein l2 and bringir-g the iarins 14 into camini; ngagement with the ,tcm and With the `1 i 'u nu y 1b or me ii intr c ianioei.

.vet and d valves the VWater from the water chamber. By this arra nge-mentV a diliierential pneumatic land hydraulic controlled means. is provided Whereby'the air supplied to the pressure chainbermafbe under comparatively small compression exerted upon a greater area of the dry valve and yetfbe suincient to hold the WetV valve 19 closed against a relat ely much greater Water pressure excrtedupon J, less area in' an opposite direction upon the vict valve.

Having thus 'described my ilivenlirniA il. should beunllerstood that' there may be modifications thereof andI variations therein Without departing from the spirit of' the invention or exceeding the .scope ofthe appended claims.

Having thus described my ivention l claim; V

1. fr dry pipe valve comprising a casing havinganair inlet anda Water inlet in opposed'relation to each other. and a differen- Atial inouniatic and hydraulic closure valve intermediate of said inlets controlled by collapsible? and extensible moans normally located in the-axial line of said inlets.

2..A dry pipe valve comprising an air inlet and a Water inlet in opposed relation lov each other. a valve closure means between .said inlets. didcrenl'ial pressure locking means carried on said closure means. and

collapsible and extensible means normally located in the axial line oi' said inlets ior controlli j said. locking means.

i and nf'ate'r inlet in oogosed relation to cach other5 valve `closure means `b -et .veen said .inlets,.dii`lie'rential pressure locking andreleasing means carried on said closure means,

ioo

valve comprising an air inlet -Vitooleii posit-ion byL water .pressure-Vfronrthe lfems, V"o omprgising Yxrz'rjeiioeinber,seid secondary meensupro-4 20.4% drylrinlye deviceor-drypiper'syel Y.temsfconiprising pressure alleinigen n y chamber .noi-ii nel" in seid pr nii n'said'pressnreciinmbergn wetvvri e i DLI;

iff

ivoire, Seidl dry- ".feive ine; the sabres in normal dosed position,

' Y 22. dry mh/e device for "pipe" syrsems,

Comp Y ohninbelgfn .4 Y S v Y 15m-e Chamber sind theintermeonrte chozniber Y on'the primer', y

'Y valves lin norm .i closed @OST-10mn :1ndA ex- Water chamber, 2r- -elieinbervintermediate Ytweenkseid'"oheinbers, a dry vulve bewleen Apresm'eVV chen iber [and Lhe intermediate el bei' norinuiiyfeloeed by preseiireof LDQ* lthe. w yer Yehember. and ,"ehje S1 locking thef-yelvee'in fno.

valve means-V' neic po e primary "and secondary Yeonvolutefl Ineens-3, o ol'lepsibie'by pressure of rire zurinY ser@ pressureV chamber on the prinmrfy means for Vreaeininsr @ein Ylocking ineenSin poeition for Vholding seidY veives i'nln'orniu oiosedposibien7 and exonsibleby lesisening'ojf'ssud nir V'oreSaure for 'releasing said)ioei'in means ro mit, concurrentmovement .or-the Valves i reopen position- Water 'presslrre from the pre a zeisbiefby iessening of seid pres crniit oorienrren'i1 sin veter preeure from Vthe water member.

imno; e presgnreehierlbor7 e Water chamber intermediate 'between- "d chamber 'ai Eiry voire between hepr end normally oioeedby pre zure ofV [the air in saisi; pressiire'ohamber,ewet raive between the vWziereimfmber ann 'inermedintechamber eoaetivej-w1tb Vthe ,idivfrnire the dry mii-.1e inoiudingn:prirnnry1nd second# ery accordion diaphragm', collapsible. by pressure of thear in seidl pressure obaniber iigrpbrngin "retaining the tensible by iessening of seid, ossurerio lgfermifb' eonevrenti movement. of the vales y n .by roter pressurejrom Vthe water member; secondary vaccordion diaphragm providing, ,flexible ,nir-tight connection between 'i1/be dry endweft Val-ves.

dry valye'deviee for dry pipe syse o 'oeinberf eo'eetive with 'the Ciry iid 'eeoonr'lnrr renvoi-umd ,iht connec-V "ow-e'lnent o'rfizhe 'Vvelves'o open position by A V.Closed positionT :in

ei preSS-ureharnbr, je We Ater chamber-,fle A@herinnerl nterrnediatefbe# i tween seidY ehe'nobers,v Y a Y"dry ivoire {betwee i 'ihepressure ohambe'rinnd Qheintern odiate- 'lohalrnrberfano normallyClosed-by. pressnre o between thefwaerfehembeif *211115 yal-ve, inea-'nfs for lockingtbe @ret-y .'hold j-the'fwetpend'dry lyal "sr' Closed position- V unlock In irs operlf. Y Y *n essere@ Y Y ranged jwhenjeoiipsei Vby lpressnreo airk tojrretein 'eefi'djloeking ineen@- i for holding@bewerb nd Y. 1 rrizilelosed posit-ioni, ind whent generlei lessenng'ofseid@ 4 ure to rele'a'iejs `lookingIneenerornnioen: Affrvithe- 'i A to perron; conci'firrent-morementiof thejer, and' dry valves *to openinosiion Vbyi water Y pressure 'from-rilh'e Weiter ohamber-f-*ff if' 24e Agory .Zelvellderieeor V*drypipe l SyS-V tenis eonxprisrngn pressu're @beriebenV a" Wzi- 'fier Chambery@ chamberEiniermediee'b Atween seid ohn n]bef-S.' e-l dry lvaiyelbetween A the pressure "Chamber end the Iintermediarr! ehz'nnbergand 'normally Yclosed-,byV p the zur inserer preseure einimber;l :L i

betwe'en'the Wet-er *chamber wildfire ner- :i Y'

`mediate sehernb" i operative, with' the .ff-mlve,` ineensiorfiookingtnef'n'et y y hold -thovgwef end dryjfvaives infnor'imgr dosed posit/ion and'fiinlgekebleV to perniiL- ifeflves, seid drin/f Valve* diaphragm iIlQilIlS opere4` elding aeorriion e by pres `the "air l'seid pressnrefehambel am ranged V*when eolrfepsed byfpressure o s in air: to retain said Vlooking ineensV inf poe Y for holdng the'wet and dryvrvelvesfin no o.' enng of: said-aire; looking means for unioe to permit jconurrent 'moverneni'J- of jt'ie' fand ry freir' jopenf osition 'by-f W liwressnrefroni'iie "eter oiienil'ier.

` tems, Comprising @pressure chambery-,e Wei *re1- 'chenf1 ber v eV Aeiiarrfiixr intermediate fr chembers,jnl drywveive between the pressfnre chamber and? the intermediei'ef` oheniber 'sind l normally closedA byV preesjore 'of J@he A air in sai breesure Ychrnlb y the "water Cbar'nber Y endl "the Vfi'nrermedi.fi/ce chamber coaotive with" the .dry yaive. V*ineens `for iockingffhe wet'vffirefro 'ioirrtiie Wien',l 'fend 'dry Valves" in normal fiosedV posrtonl "and Y unioekablej to permit"eenenrrem; morevValve including aiV primaryand 'a seconde-.1 y

accordion Vdiaphregfrnche second ry alcool` connection between recessie said dianhrav'm beine' o erative b pressure l t: i .L

' from the water chamber.

26. A dry valve device for-dry pipe systems, comprising a pressure chamber, aV

water chamber,`a chamber, intermediate between said chambers, a dry valve between the pressure chamber and the intermediate chamber and normally closed by pressure of the air in said pressure chamber, a wet valve between the water chamber and the' intermediate chamber coactive with the dry valve, toggle means for locking the wet valve to ,hold-the wet and dry valves in normal closed position and unlockable tor permitting Concurrent Vmovement of lsaid valves, said dry valve comprising means collapsible by pressure of the air in said pressure chamber for retaining said toggle means in position for holding thevalves in normal closed position, and extensible by lessening of saidv air pressure for releasing said toggle-means for unlockino' the wet valve vto ermit conf current movement of the valves to open position by water pressure from the water chamber. Y

27. A dry valve device lor drypipe systems, comprising a pressure chamber',- a water chamber `provided with a locking- Vgroove in Vthe'interior thereof, a Ychamber intermediate between said chambers, a dry valve between the pressure chamber and the intermediate chamber and normally closed by pressure of the air in said pressure chainber, a wet valve between the water chamber and the intermediate chamber'coactive with the dry valve and provided with a collar havingn aperturestherein, toggle means for locking the wet valve to vhold the wet and dry valves in normal closed position and` unlockable for permitting concurrent movem nt ot said valves, said dry valve comcellapsible by pressure of in said pressure chamber for retaining all said toggle means in position 'for holding the valves in normal closed position and eX- tensible by lessening of said air pressure "for releasing said toggle means for unlocking the wet valve to permit concurrent. movement of the valves to open position by water pressure from the water chamber; said toggle means comprising a stem'lixedly secured dry valve ad Y to collapsible portion oi'? tl e provided i, 'th head hait 1 a groove therein, and spang retained togale-arms ging the dry and wet valves,

,dry valve between Y closed by pressure of `in normal closed at their inner ends the grooveV in said head and extending` through the apertured collar of the wet. valve and engaging at their outer ends said locking-groove*oitI the water chamber. y

28. irl-dry valve device lor pipe systems, comprising a pressure chamber, a water chamber, a chamber intermediate between said chambers and provided with an aperture through the wall at the bottom thereof and communicating with the atmosphere, a the pressure chamber and intermediate chamber and normally the air in said pressure chamber, a wet valve between the water chamberl and the intermediate chamber coactive with the dry valve and provided with the Va laterally extending lug, means ior locking the wet valve to hold the Vwet and dry valves position and unlockable for permitting concurrent*movement ot said valves, said dry valve comprising means col- Y lapsible by pressure of the air in said pressure chamber for retaining' said lookin moans in position for holding,` the valves in normal closed position, and extensible by lessening` ot said air pressure for releasing saidloclring means for unlocking the wet valve to permit concurrent movement of the valves to open position by water pressure troni the water chamber, and means-tor draining the intermediate chamber; said means for draining comprising a valve meinber provided with a springV controlled stem having) a head for engaging said aperture of the intermediate chamber, the head havinga groove therein for engagement therewith of said lug ol the wet valve, and said draining` means bei-ng normally retained in open position by engagement of said head with said lug or" the wet valve.

29. A dry valve device tor pipe systems, comprising a pressure chamber, a water chamber, a chamber intermediate between said chambers, a dry valve between the pressure andY intermediate chambers comprisingy a disk `closure member provided with an aiiorture tliercthrminh and a recess adjoinsaid aperture. the dry valve. normally being; closed by pressure ot the air in said pressure chamber, a wet valve between the water chamber and the intermediate chamber reactive with the'dry valve and having a secondary aperture therethrough communieating with the watervohamber, means for locking' the wet valve to hold the wet and i dry valves in normal closed position and unlockable' ttor permitting concurrent moveerrentmofement Qf-the velves te open pesiaperture and reces'e ef the dlsk 16eme mem-4 Y .tion by Wet-,er pressure from the water chamber and a yclosure headlengageable--W'h said :10 ber, anld means for expecltng admlsson eg seeondary' aperture f thefjyei,'ifallveLY Y .water mtQ the mtermedlate chamber, sal Y' i CH n means comprising a spring controlled Valve member recpoeatable between SaidV disk -Wrtnesses'zi 1 Y llosure member .and the Wet Valve amd'ham-V gCAs. Si W1L1,IAMs,f-A.f Y, Y ing afstem with a `Stem-enci.4 engaging the` DLBENNEY. i l

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