US1693945A - Valve - Google Patents

Description

Dec. 4, 1928.'

G. R. WILDERN VALVE Patented Dec. 4, 1,7928. .fg

UNITED STATES PATENT OFFICE- GEORGE n. WILDERN, or. DETROIT, MrcHIGAN.

' vALvn.

Appneationnied January 2s, 1927. serial No. 164,265.

. gas.

With the above and other objects in view,

my invention yconsists in 7 the arrangement,

combination and construction of the various parts of my improved device as described in the specification, claimed in lmy claims and shown in the accompanying drawings, in which: i y Fig. 1 is a sectional view of my improved device with a portion of the tankto which it may be attached shown in elevation.

Fig. 2 is a rear elevation of myfimproved device, certain parts being broken away and other partsbeing shown in section tobetter Villustrate the invention. Fig. Bis a front elevation ofthe regulating dial utilized in my improved device.. I have shown a chamber or casing which Vmay besaid to comprise a lbottom'enlarged portion 5, central restricted portion 6 and top enlarged portion 7. VThe portion 7 is `provided with an opening inthe back thereof which may be closed by a plate 8 of brass or other suitable .material which is secured to the casing by screw studs 9. The face of the portion 7 is provided `with anindicating scale 10 across which `anv indicating finger 11 .may move. The inger 11 is mounted on the -pin 12 which is secured to rotate therewith kby the setscrews 13. The pin 12 is rotatably mounted in the apertured boss 14 and extends with-y in theportion 7 of the chamber. Connected to the pinwithinthe chamber as at 15 is one end oa coil'16 of thermostatic metal The other end of the coil 16 is positioned between the spring arms 17 and 18 of a bell crank lever device which is` made up of a continuous length of spring materialv and pivoted on the stud 19. A stud 20 is` secured in the wall of the chamber 7 and hasa split end 21 extended into the chamber and receiving the coil 16 adjaccnt'its end to guide vthe movementof the same. The lower end of the bell crank lever device is designated Vas '22 Vand is looped around the notch 23 on the end of theplug 24 in the tube25` so as to hold the tube in suspended position. The tube 25 extends through the restricted portion 6 of the chamber being tions 26.

Tliejportion 5 of thechamber is provided.V

with anv inlet pipe' 27 and an outlet pipev 28, Vthe latter extending through the pipe 29 vto a point within. the Vrestricted portion6'and also within the tube 25. `A- quantity of mercury ory other suitable *heayy'k ,liquid 30 is provided in the bottom of the portion chambersurrounding the pipe'27. p

The device as ay whole may bemounted upon a tank 31 which may be considered for the purpose of this application as a convenl guided therein` by spaced projecl 5 of the tional water tank, with` the plate 8 and coil i 16 held directly adjacent the. tank. Assum ing that the water in the .tank is cold'the coil 16 will be acted uponto Amove against the spring arm 18 so as to liftthe tube 25 to the position shown in Fig. 2. The pipe 27 may be connected to. a suitable supply of light Huid i such as gas, the arrows in Fig. 2 .indicating `the incoming of the gas and the passageol `the same between the tube 25 and the pipe 29.

to the .top of the tube 25 yandthence down through the pipe 29 and pipe 28 to a suitable burner for heating'thewater in thetank (not shown). reached a predetermined higher temperature, the heat thereof will be conducted through the tank wall into the portion 7 of the chamber and act upon the coil 16 to cause it to n exert ,pressure on the spring arm 18ct the Vbell crank lever sc as to press the tube 25 downwardly until it engages inthe mercury v 30,. As'soon as the tube 25 begins to restrict When the water in the tank has the flow of gas, pressure change occurs which hastens contact with the mercury and acts to snap 4the tube 25 into position'where the openl end thereof' is completely immersed in the mercury andthe closed end thereof or plug 24'will rest ontlie open end of the pipe 29.

The, closing of vthe end ofthe pipe 29 will tend to prevent splashing ot the mercury up over the'end of the pipe, in the event the pipe is not of sutlicient length. l/Vhen the water .in the tank has again cooled to cause the coil 16 Vto act on'the spring arm 18 and lift the vtube 25, the lirstbreaking ofthe open end ot' the tube with. the mercury will permit the entry ofgas and the pressureof the gas will A be exerted against the inner tace of the plugl 24 vso as to snap the tube 25 to its extreme upward position and ,therebyrfully openpthe valve.

. `lt be appai-eiitwthat movement of theA indicator finger 11 will tend to wind and unwind the coil 16 dependent upon thejdirect-ion` Voi its movement, correspondingly adjustingV the tension of the coil and the periods which it'will'operate to open and close the valve.

y f :1, In al device of the ,classidescribed, `an

It will be apparent that other means than the` thermostatic means hereY shown maybe utilized for opening and closing the valve and that various other changes maybe `made.

in the arrangement, combination andfcon struction ofthe variousparts of myimproved deviceV without departing from the spirit of,-

- my invention, and it ismy intention to cover by my claims such changesas may be reasonably included Within the scope thereof.

What I claim is:

inlet pipe vand an outlet pipe, a common Y chamberintowhichsaid pipes lead, a relai tively heavy tluidheld in said chamber subject to and movable as a body by pressure from fluid entering the intake and surrounding one of said pipes, a tube enclosing said latter pipe having a. closedkend extending beyond the endof saidpipeand movable to y for moving the tube..

Vextended beyond the endof the pipe within bringits other end into and out of-said heavy fluid to make and break connectionbetween said pipes and temperature responsive means 2.1i; .a device of the class described, a chamber having inlet and outlet openings, the

latter extending in Vthe formV of a pipe into the interior of the chamber, a tube having an open end enclosing said pipe and a close'dend thechamber, a body of relatively heavy fluid in said chamber around said pipe and below the intake opening, whereby a relatively light fluid may enter the intake, pass between the tube and `pi e, thence into the pipe and out of the cham er, and temperature responsive means for moving the tube intothe body of relativelyheavy lluid to` seal the passage of said light fluid.

3. In a device of the class described, la

vchamber having inlet and outlet openings, the

latterr extending in the -form o fa pipe into the interior of the chamber, Va9 tube having an open u' end enclosing said Vpipe and aclosed` en'd extendedbeyond ltheend of the pipe' *within the chamber, a body of relatively open end of` said pipe.

heavy fluid in said chambei'around said pipe and below the intake` opening, whereby arelatively light fluid may enter -the intake, pass between the tube and pipe, thence into the pipe and out ot the chamber, and temperature responsive means for moving the tube into the body of relatively heavy fluid to sealthe urther passage of said light fluid with the closed end of'said tube resting on the p 4. In a device of the class described, a chamberhaving inlet and outlet openings, the

further p latter extending the'forinof a into the interior of the chamber,` a tube having an Vopen end enclosing sa1dp1pe anda closed end extended beyond theend of the pipe within 4.the chamber, al bodyof relatively heavy fluid in said chamber around said pipe and below the intake opening,- whereby a relatively light fluid may enter the intake, pass between the tube and pipe, thence into the pipe and out of the chamber, and Vmeans for movingthe tube* into thebody of relatively heavy fluid to seal thefurther passage of'saidlightfluid and then moving it out of the heavy `liquid `tol break the seal, saidmeansoperating-.inresponseftotemperaturevariatmns Y ,i

n 5,.In a `device ofthe class described, chamber having-inletV and outlet openings, Y the latter extendingin the form otta ipe into the interior of the chamber, a tube aving .anopen 'end enclosing said pipevand a closed endextended beyond the end ont the pipe within thefchamber, a body ofrela.- tively heavy fluidfin said chamber around said -pipe and below fthe intake opening, whereby are-'lativelylight fluid may enter the intake, pass between the tube and pipe,thence^ into the pipe and out'of the chambenand means for moving'the tube into the body of A of as envy liquid` i@ break the sail, Said means operating in responseto temperature relatively heavy flui'dzto sealthe' further pas- Y sage ofaidA light fluid and then movin(lr Vitfout.`

variations and comprisinga coil of `tlaerntiostatic'pmetal connected at one end wit-ha bell crank lever, said lever being connectedgwith thetube.y

6. A device of theiclass` described comprisingfa gasintake andxgasfoutlet, a` chamber l mercury to close `the `passage fof gasfrom the intake to the outlet and clear saidtube 'end from the mercury to` open thesaid, gas passage, the pressure of the gas assisting `tofsnap the-tube freeot the mercury and' immersefthe ,endthereof in-thesame inthe said alternate 7. A device-of the class comprising a` gas intake and gas outlet, archamber if@ through whichA the. gas passes, asu plyof AVmercury freely disposed 1n the'cham ersubject tothe pressure of the` gas, autube in the "chamber and meansformovingthe tube relative tothe Amercury to alternatelyimmerse passage of gas from the intake to the outlet and: clear said tubeend Vfrom the me'rcu to Aopen the said gas-passage', the 'pressureV the cury and immersetheend thereofintlie same in the said alternate movements. y A

Vione "end of the tube in the `mercury tocloSe the i gasassistingto snaplthe tube freeof the merf ing said chamber fromsaid inlet, a heavy liquid in said chamber subject to the pressure of' flui-d entering said chamber from said inlet, and means for causing a movement between said liquid and said valve member to restrict the fiovv of said fiuid past said valve member 10V whereby the change of pressure on opposite l sides of' said point of restriction due to said restriction, will cause said resilient means to give and snap sai-d valve member into said liquid thereby completely and instantly seal- 15v ing said outlet to the passage of said fluid. v

GEORGE R. WILDERN.

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