US1967645A - Primer valve - Google Patents

Description

July 24, 1934. D. s. WILLIAMS PRIMER VALVE Original Filed Dec. 30, 1933 INVENTOR. DAVID S. MLLJAMH B M MMRNEYS.

Patented July 24, 1934 R MER w David S. Williams, Portland, Oreg. Qi'igined application December 30, 1933, Serial 704, 687. Divided and this application March 9, 1934, Serial No. 714,805

3 Glaimsl (!,182-12) This invention relates in general to improve.- ments in valves, and particularly to primer valves which are adapted for automatic actuation by Water pressure that normally is contained in a water supply line but which utilizes somewhat different mechanical principles from those set forth in my coepending application f0! improvements in Primer valves, aerial No. 704,637 filed December 30,1933, put of which this application 9 as b en d v ed to c mply h rule 41 o t e rule of p tice the Unit d Sta e Pat n -013 and from those set forth in my co-pending divisional application for improvements in Primer valves", Serial No. 714,210, filed March 6, 1934,

The subject matt r o i a pl ca i i apable of fulfilling all of the ob jects set forth in the above=identified co-penc ling applications inso ar h ubj c a te tommo to the three i c nc ne a hi th device i ust at d as emb d -ins h p esen in en io i u arly si n d to u e th Wa e trans o t e w llknown t pe, stil i may ave a w d and va e ran e of i s in the a s w r i i es e t l to automatica ly ctua a va e y wat r 1 p s ure,- 7

My invention contemplates the provision of a p me valve whi h ma be autom cally s m at so th a wa er sea i ll ime ma tained in floor drain traps, sumps or other anal .ogous ,contriva-nces so that the obnoxious gases usuall ated i sewers and oth d sposal units can ot ent r into h uses o bu ld ngs rom such s ers Q o he d posal un ts- .An im o tan obj c o my invent on i o 111 vide ,a va v whi h v enins w cd ectlv o i di ec y i a W e s p l l ne s to o on an s vic onnection w ll autom t c l m i tai a p ed term ed a ount o wate a ea a inst e c p ng-omn bu .sase and/or w -comso p ns .for w te osse rin d vices connected thereto due t use, va or t o ea e or o e cause ua lv i- .1 Q tan cbfie o my nvention is t n vide mea s .fo pr enting t ol ter and air being ip ed i oman [drains into'-.the-w tr supply line.

An equally important objectof my invention s o p vide means for aut ma pally 1 '1R +5- a iquid f owin th ough e ar da si w te op 1 .0 ply line-i t s-containsr wh h 111 e th e sealed Fo w c n w ur cmat pthenm ch n sm-suc e a line a m c nn cted t o SDI-11,1- ,kl n s em I A still further ,object of my invention is-to I prov de a simple p act ca m smn e and s1?- cient primer valve which may be manufactured at .low cost and Within a minimum of time.

' The invention is directed to other objects and possesses other features of novelty and advantage and consists in the new and useful formation, construction, combination and interrelation of parts, members and features, all of which will he more apparent from the following detailed description, having reference to the accompany.- ing drawing which illustrates one embodiment by which the invention may be realized and in which:

Figure 1 is a sectional, side view of the illus trated embodiment of my invention, including the construction of the inspection-unit, showing the position of the valve when the liquid in the supply-line is at rest.

Figure 2 is a sectional, side View of the illustrated embodiment .of the invention in Figure 1, showing the position of the valve when the liquid in the supply-line is in motion.

Figure 3 illustrates a Water supply-line to which a standard type of faucet is attached and also to which a primer valve embodying my invention is directly connected and also indicating the manner of connecting the valve-unit to a W ter trap- Figure A illn stra-t'es a Water supply-line to which a primer valve embodying my invention is indirectly connected and indicating the manner for delivering a liquid to a station located at a remote point frcn'rthe nain supply-line.

Figure 5 illustrates the application of a valve embodying my invention to a fire-alarrnlsystem at d by wat r owing h u h a Water s ply e V l. v l l C resp ndin endlik Parts r r er ed F9 n the following vdescriptigpn and indicated in all t e views o t sewin b th sam e en characters. I

th i v nt on may in o p ted in u ture as disclosed in the drawing, wherein the i e valve g n al s s ost d b misre i chara t A- T e alv -b dy or a in h i na th eaded bos ext ndi u 'w ncl v om one of it side @119 externa t eaded bo ext nds u a dl #9 2 th opposit ide o an in d re a t lln .h:b2 ;3 :A hi o d aphra ,4 ii e'i g sedetveen bo es 1 and 3 an 3s e in 1 me ther i the c c mi te c whic i less t an the ,Qhqumfi reme f the passageway ,folqrned between bosses 2 and h p ssa w i th s some into hemher 6 an Y h W H or i a m?- spo s is o ed th u th l wer P tion o the Wfi l Q d ph agm x W iQ a sts in ll??? fectively equalizing the pressure between cham bers 6 and '7, when the water in the supply-line reaches a state of rest.

Internal threaded wall 9 extends upwardly from the valve-member 1 and forms chamber 10 therebetween. Head cap 11 is threadably secured to the wall 9. A shaft 12 is secured to the wall 9 and a bell-crank 13 is journaled upon said shaft. The bell-crank 13 has arms 14 and 15. A weighted disc 16, the circumference of which is substantially equal to the circumference of the opening 5 in the diaphragm, is secured to or made integral with arm 14 of the bell-crank. A threaded-member 17 extends outwardly from arm of the bell-crank, and a valve-cap 18 is threadably disposed upon the threaded-member 17. A valve-washer 19 made of any suitable material, such as rubber, is removably disposed within the valve-cap 18. bell-crank valve-assembly heretofore described will be related forthwith.

External threaded boss 20 extends outwardly from the wall 9. A hollow supply-tube 21 is removably disposed within the bore or passageway 22 formed within the boss 20, and said supplytube extends a slight distance into the chamber 10. This supply-tube has a dome 23 formed at one end and an unrestricted opening formed at the other end. A flange 24 is disposed immediately adjacent the unrestricted opening of the supply-tube 21, and a restricted opening or port 25 is disposed through the apex of the dome 23. The flange 24 is adapted to fit snugly against the end 26 of the boss 20, and the supply-tube 21 is positioned within the passageway 22 so that the restricted opening or port 25 may be normally sealed by the valve-washer 19.

The bell-crank valve-assembly hereinabove described is constructed so that the valve-washer is into the supply-tube 21.

in direct alignment with the opening or port 25, and it is within the contemplation of the invention that the washer should normally remain seated and maintain the opening 25 under seal.

In order to efiect this desirable end, the bellcrank valve-assembly is constructed so that the side 27 of the weighted disc16 does not come in contact with the side 28 of the diaphragm 4, and, for all practical purposes, remains in position for pendulum action and covers the opening 5 sufficiently to rock the bell-crank valve-assembly when the water within the supply-line is put into motion. From the above detailed description it at once becomes apparent that the supply-tube 21 is normally maintained out of communication with the chamber 10. It is only when the motion of the water under pressure in the supply-line swings the bell-crank valve-assembly on shaft 12 that the port 25 is unsealed permitting some of the water to be by-passed This action is graphically illustrated in Figure 2.

A union-connection 29 has a bore or passageway 30 therethrough. A flange 31 is formed at one end of the union-connection, and an internal threaded boss 32 is formed at the other end thereof. The flange 31 is adapted to intimately fit against the flange 24 of" the supply-- tube 21. These flanges are held in intimate engagement with each other by union-coupling 33 that is threadably disposed on boss 20. An airvent opening 34 extends upwardly from the union-connection 29, anda-slip-cap 35 is disposed thereon so that a portion thereof is in spaced relationship to the vent-opening in order -to' form an air-vent as shown at 36. Attention The function of thepurpose of lubricating the shaft.

might well be called to the fact that the vent assembly fulfills several important functions. Not only does the vent assembly permit inspection and supply air to the supply tube, but it also eliminates the possibility of a siphon action taking place between the supply tube and the drain to which the vent assembly is connected. Thus the possibility of foul water and air in the drains being siphoned into the water supply line and contaminating the water therein is entirely prevented.

I Figure 3 illustrates one of the valves embodying the invention heretofore described, which is directly connected to a water supply-line. Boss 2 has threaded therein conduit 37, which comes from a source of water supply not shown, and conduit 38'i's joined to boss 3 by union-coupling 39. A faucet 40 is shown connected to conduit 38.

However, any other service connection may be efiected without changing the operation of the primer valve. The vent-assembly may be joined to drain-trap 41, or to any other contrivance which requires a supply of water, through any desirable means, as through conduit 42 being threaded in boss 32.

In Figure 4 is illustrated a valve identical in structure with the valve illustrated in Figure 3. However, this'valve is shownindirectly connected with a water supply-line. The main water supply passes through conduit 43. Water is by passed into the valve through conduit 44, which is threaded into boss 2. The by-passed water that does not enter the vent-assembly is returned to the main water'supply line through conduit 45,

which is engaged with threaded boss 3 through 7 union-coupling 46. The water entering the ventassembly may be directed to any 'device' which requires a supply of water either for purposes of effecting a water seal or for any other purpose. This particular arrangement does not in any way affect the operation of the valve constructed in accordance with the invention.

In Figure 5 there is illustrated a further use for the invention. This illustratiton shows a valve identical in all material particulars with cal connection or the arm may be connected in any other manner provided that the connection produces the results desired, namely, the setting off of an alarm when water actuates the bell The shaft 12 is made' crank valve assembly. A packing gland 49'surrounds the exposed portion of the-shaft 12,"thereby effecting a water tight connection without hindering the movement of the shaft and an oil retaining member 50 surrounds the packing gland in order to prevent corrosion and also for the Modus operandi sure, is forced to surge toward thefvalve-assembly causing the weighted armof the bellcrank-valve-assembly to be-swungaway from opening 5. Thisaction simultaneously removes the valve-cap from port 25, permitting the water to enter into the supply-tube 21 and from there th water enters into the vent-assembly from where it travels to any device requiring water for sealing purposes or for any other purpose. The relative position of the bell-crank-valveassembly, when the water is in motion within the valve-body, is graphically illustrated in Figure 2, and the position of the same valve when the water is at rest is graphically illustrated in Figure 1.

The invention has been described in connection with a specific illustrative embodiment disclosing a definite arrangement of parts. However, it Will be understood that a wide range of variants thereof is possible to those skilled in the art without departing from the broad spirit of the invention, since the invention, in its broader aspect, is not limited to the specific construction herein described and shown, as changes in the size, proportions, arrangements and mechanical relations as well as additions, omissions and substitutions in the form or parts may be made which fall within the scope of the subject matter incorporated in the appended claims.

Having thus disclosed my invention, what I claim as new and upon which I desire to secure Letters Patent is:

1. In a device of the class described, a bodymember having a bore therethrough, a diaphragm disposed within and dividing said bore into two chambers, said diaphragm having an opening therethrough, the circumference of which is materially less than the circumference of the interior of the bore, means rockably disposed within the body-member and normally covering the opening in the diaphragm responsive to the pressure of water passing through the bore of the body-member, and a supply tube removably disposed within the body-member in parallel offset with the bore of said body-member, said supply tube having a restricted opening through one end thereof in direct alignment with a portion of said rockable means, said portion normally sealing said opening when said means normally covers the opening within the diaphragm.

2. In a device of the class described, a bodymember having a bore therethrough, a diaphragm disposed within and dividing said bore into two chambers, said diaphragm having an opening therethrough, means rockably disposed within the body-member and normally covering the opening in the diaphragm responsive to the pressure of water passing through the bore of the body-member, a hollow-stem removably disposed within the body-member in direct alignment with a portion of said means, said hollow-stem having an opening therein adapted to be sealed by said means when said means normally covers the opening within the diaphragm, and a vent-unit removably secured to and in direct alignment with the hollow-stem.

3. A device characterized as in claim 2, wherein the vent-unit consists of a conduit in registerable alignment with the hollow-stem, a vent-opening disposed through said conduit, and a slip cap-protector covering said vent.

4. A device characterized as in claim 2, wherein the rockable means consists of a bell-crank valve-assembly movably journaled Within said body-member, said bell-crank assembly having a weighted disc secured to one arm thereof positioned in direct alignment with the opening in the diaphragm and having a valve-cap assembly secured to the other arm thereof positioned in direct alignment with and normally sealing the opening in the hollow-stem.

5. In combination with a source of water supply under pressure, a primer valve comprising a body-member having a bore therethrough, a diaphragm dividing said bore, said diaphragm having an opening therein, a hollow-stem removably disposed Within the body-member and in spaced relationship with said bore, said hollow-stem having an opening through one end thereof, a shaft journaled within said body-member, and a bellcrank valve-assembly movably journaled about said shaft, one end of said bell-crank valveassembly adapted to normally cover the opening in the diaphragm and the other end of said bell-crank valve-assembly adapted to seal normally the opening in the hollow-stem, said bellcrank valve-assembly being adapted to rockably respond to water under pressure to thereby uncover said openings.

6. A device characterized as in claim 5, including a vent-unit disposed in registerable alignment with said hollow-stem.

7. A primer valve comprising a body member having an inlet passageway, an outlet passageway and a chamber formed therein, a diaphragm having an opening therein disposed between the inlet passageway and the outlet passageway, a hollow-stem disposed within the body member in parallel offset with the inlet and outlet passage ways and having its free end extending within said chamber, said hollow-stem having an opening therein at its free end, a shaft journa-led within said chamber, a bell-crank valve assembly movably journaled about said shaft comprising a Weighted disc secured to one end of said bell-crank and being in direct alignment with the opening in the diaphragm, and a valve-cap secured to the other end of the bell-crank, said valve-cap being in direct alignment and normally in intimate contact with the opening in said hollow-stem, said bell-crank assembly being adapted to be rocked by water under pressure.

8. Apparatus as characterized in claim '7, including a conduit in registerable alignment with the hollow-stem, a vent-opening disposed through said conduit, and a slip-cap protector covering said vent.

DAVID S. WILLIAMS.

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