US2011690A - Valve mechanism - Google Patents

Description

Aug. 20, 1935. .F. H. scHoI-:NFELD VALVE MECHANI SM 2 Slree'cs-Sheetl 1 Filed March 7, 1934 JWM [III/[1110142 III/ll ATTORNEY.

Aug. 20, 1935.

F. H. SCHOENFE'LD VALVE MECHANISM Filed March '7, 1934 2 sheets-sheet 2 I N VEN TOR.

Y E N R 0 T.. T.. A

Patented Aug. 20, 19,35

AAnother obje-ct Another object oi th 2,011,690 vALvE MEcHAmsM v Frank-H. Schoenfeld, Cleveland Heights, Ohio,

, assignor to y Company, Cleveland,

Application March 7,

vmechanism of the invention is to provide ay be removed as a. unit.

e invention is to provide a valve mechanism comprising a main valve and a controlling valve which is removablewhereey its valve element and valve seat may be readily cleaned.

Another object an improved valve valve and a cont e invention is to provide mechanism comprising a main rollin g valve4 removably asso- The Titan Valve and Manufacturing Ohio, a corporation 1934, Serial No. 714,472 12 Claims. (o1. 217-64) its molmting the main'valve and interconnected whereby the removal of the controlciated with therewith,

interconnected therewith so that upon removal of the valve mounting the rotary valve is rotated to shut oli the supply.

A further object of the invention is to provide a valve mechanism having independently operable main cut on' vand controlling valves and which is relatively simple, readily assembled and V operated.

- controlled by a valve mec with the accompanying drawings, wherein Fig. 1 is aside elevation of a. boiler, such as a storage water heater, having a gaseous fuel supply hanism my Y invention.

- chamber, the casing Fig. 2 is a plan view of parts shown in Fig. 1. Fig. 3 is a section on the line 3`3 of Eig. 2. I Fig. 4 is an end elevation of the parts shown in section.

Fig. 6 is a section on the line 6,-6 of Fig. 5.

IE'igs. 7, 8, and 9 are perspective views of certain parts detached.

Fig. l` is a view showing in perspective the controlling valve element, its' mounting and operating spring in separated relation.

In the drawings, l indicates a storage water ing suitable feet 3. d indicates a ue which leads through the tank from the combustion chamber. indicates the outlet for hot water, leading to service points or stations.

supply pipe leading from the supply mains. The

and arrangement.

aseous fuel is The g Supplied by a pipe l to a casing B, to be later referred to, and from the anism it and on its rear casing through a pipe 9 to the burner and through a pipe ill to a suitable pilot. The pipe '5, casing d and pipe d form a conduit for the fuel leading to the burner.

In the illustrated application of 'my invention, my improved valve mechanism is associated with a thermostat mechanism, indicated as an entirety at il, which, due to change in temperature of the water in the tank, operates the controlling valve of my mechanism, to admit fuel or cut on its supply to the burner; but it is to be understood that my valve mechanism may be otherwise used, for which reason the invention is not to be limited to a valve mechanism wherein the controlling valve is to be operated by or through a thermostat. The thermostat mechanism may be of any desired construction. Where my valve mechanism is associated with a thermostat mechanism oi the construction and arrangement herein shown, the casing 8 is shaped to form a chamber Q in which is'mounted a suitable multiplying leverage i lo forming part of the thermostat mechhaving a tubular member it. The free end of the member t3 is threaded into the side Wall of the tank' i as shown in Fig. l. lThe body portion t2 is formed with vvardly from one side thereof. The side walls of the recess ifi are formed with openings i5, it, in axial alinement with the tubular member i3. The walls of the opening i@ are threaded to receive and support the inner end of a tube il formed of copper or other material having a high co-ecient ci expansion to serve as one thermostatic element. The tube El extends through the member i3 into the tank i and its outer end is closed in a liquid tight manner by a plug it (preferably a plug'threaded into the tube) The plug it is crrned with a threaded opening, extending axially inwardly from. its inner end, and arranged. to receive the outer, threaded end of a rod it, formed of invar metal or other vmaterial having a low co-eicient of expansion to serve as the other thermostatic element. The rod it extends through the tube il and opening i5 into the charnber d for engagement with and operation of the leverage ila. Zd indicates a device connected to the rod t@ within the' recess i@ and extending outwardly to a point of access, as shown at 2da. The device serves as a means for rotating the rod id, which operation through the threaded con- Ha herein shown comprises a gaged by the inner end of the rod I9, a separate lever 23. and a spring 24 between the free end movement of themain nection with the plug [8 will move the rod E@ endwise and effect an adjustment between it and the leverage H a, so that movement of the rod I9 will actuate the leverage with greater or lesser change in temperature of the Water, to control a valve 2i to be later referred to. The leverage main lever 22, en-

the levers, so arranged that upon leverk 22, the spring is portions of moved relative to the fulcrum of the lever 23 and effects a snap action thereof to open or permit closing of thevalve 2l.

While construction Vand arrangement of the thermostatic elements and the leverage I la operated thereby may be of any desired construction, that s own herein a co-pending ap by me Mar. 8, 1934, for whichreason no claim is made to such subject-matter herein.

In the structural form of the casing shown, the

top wall of the chamber 9' is formed with a threaded opening 25, closed by a plus 26, and its botwall a body portion it a recess i4 which extends inexterior shoulder 42 torn wall is provided with a nipple 2l to which Vthe pipe s is connected.

The dual valve mechanism comprises the following: 2d indicates a circular wall formed integrally with the outer side wall of the chamber il' and open at its outer end. The wall 28 is preferably of conical shape and forms the seat for a valve element 29. The valve element preferably rotates in the wall or seat 28 and opens and closes a port 30 formed therein. `llhe pipe 'i may be connected to the wall 28 to supply the gaseous fuel the casing 8 is provided with a wall 3l integral with its Walls and the Wall 28 to form a fuel inlet chamber 32 and related to the port 3E! so that the fuel supplied to the inlet chamber 32 flows therefrom through the port. The wall 3i terminates in a suitable nipple 33 to which the pipe 'i is connected. By the provision of the chamber t2, provision'is made for a valved outlet connected to the pilot pipe it. For this latter purpose, the wall di is provided at one side with an integral boss t4 having an opening 35 through it, the pipe id being suitably fixed in the outer end o the opening t5, its inner end forming a seat for a needle valve 35. The needievalve 3S has a threaded shanlr threaded in and extending through a plug @l mounted in the opposite side of the Wall di and a head 38 -for turning the valve. r)The wall 2d is concentric to an opening 39 formed in the outer wall of the chamber The wall surrounding the opening 39 forms a valve seat, as shown at 39a for the valve 2i, already referred to. The valve element 29 is open at its front end to removably receive the valve element it@ of the valve 2i and its mounting and is termed with a 'ow from the inlet chamber @it through the valve element E@ and through the valve 2i, when the latter is opened, and into and through the chamber @Strom which the uel oivs through the pipe e to the burner. lihe valve element 2Q may be rotated any desired distance to close the port tu but in the preferred arrangement wherein the removal of the valve 'element it and its mounting serves to rotate the valve element 2Q and close the port E@ and replacement of these parts serves to rotate the valve element i@ and open the port 3d, I prefer to provide means (to be later referred to) for limiting the rotative movement of the valve element 2Q, this being especially advanelement .29 to with the port 3d. The valve element 29 is reduced to form an annular and an annular interior shoulder later set forth. The outer end of the-element 28 carries a handle 43 by which the element may be rotated manually or automatically as hereinafter described, the handle being of annular shape to permit the removal and replacement of the valve element 40 and its mounting. To secure the handlein position, the end edge of the element 29 is provided with spaced cut-aways or recesses 44 and the inner annular collar 46 and wall 2l are provlded with diametrically arranged outwardly extending lugs having aligned openings cure the collar' 4i in position. The outer end of of the valve v 'wall of the handle 43 is provided with spacedY lugs the collar 46 ls-provided with an in-turned flange 43 which forms the seat or abutment for one end of in-turned members 52 so arranged that one member engages the lhead of one screw 41 and the other member engages the headrof the other screw 41, whereby these screws serve as stops to limit the rotative movement of the handle 43 and valve element 29. 52 are preferably ar- Y lockedin either position as limited by the screws 41 by means of a spring catch 53 arranged to enter slots 54 formed inthe rim or edge of the skirt I. -The latch 53 consists oi' a resihent strip having a base portion suiton the skirt rim vand enterone of the slots as shown in Fig. 3. The portion 53a extends be.

yond the handle 43 so that it may be manually pressed inwardly to release the handle. The strip 53'may be secured to the collar 46 by slitting vthe latter im parallel lines throughout a portion of its circumference to form between the slits a section 46a. This section is distended or iiexed suiilclently to permit the base portion of the strip to be inserted below it and thus engage with the collar at opposite sides of the section 46a. .As the opening through the valve element 29 is sealed by the mounting for the valve element 40, as later set forth, no danger of leakage through the slits/is scf a coiled spring 59 (beingzpreferably fixed thereto) of the spring engaging the` end 'I wall of the' chamber 56. lThe spring 59 normally gas-.tight sealed. When tends to'move the valve element 46 against its seat 39a, but is compressed when the valve element 49 isunse'ated by movement voi. the lever 23 toward d the left, as shown in Fig. 3. 66 indicates a collar' I integrally formed on the closing member 55. The

outer wall'oi the collar 69 isthreaded and arrangedv to engage a threaded wall 62 provided on the valve element 29, sothat when-,the closing member 55 is turned to screw the collar '66 on the into position against the shoulder 42a, the closing member isrigidly secured to the valve element 29 the collar Ell-is screwed 3 .and may rotate therewith when turned. By releasing the spring latch 53a', the valve element may be turned to close the port 30 or. open it. The outer end of the closing member 55 is provided with ilange or collar 63 the diameter of which is somewhat larger than that of the collar 66 to permit the positioning over the latter of a ring 64. The ring'64 is preferably slightly resilient and is arranged to be pressed into tight frictional engagement with the handle wall 50 when the member 55 is screwed into final position. Accordingly, when the closing member 55 is rotated in the op eration of removing it, the engagement of the ring 64 with the wall 50 will serve to turn the handle 43 and valve element 29 until the handle is stopped by the engagement of one lug 52 with the adjacent screw 41, thereby closing the port 30; likewise, in the replacement of the closing member 55, the ring 64 will be forced into tight engagementwith the wall 50 and operate to turn it until it is stopped by the engagement of the' other lug 52 with the adjacent screw 41. If desired, the ring G4 and handle wall 50 may be provided with interlocking elements. From the foregoing description it'will be seen that the closing member 55 is de tachably connected to the handle 43 so that when the member is turned in one direction to remove it, it automatically turns the handle and valve element to close the main valve port and releases vitself from the handle; and 'that when the closing member is replaced and turned to position it in the valve element, the handle is engaged and automatically turned to open the valve port 36. It will also be seen that when it is desired to inspect, clean or repair the elements of the closing valve, the single operation of unscrewing the closing member, removes the valve element 46 and closes the. port 30 and that but one operation is required'to replace the. valve element 40 and open the port' 36. The outer end of the closing mem- Vber 55 is preferably provided with a kerf 65 to receive a tool to facilitate turning of theA member.

The valve element 46 is preferably o'f substan tially semi-spherical shape and its seat 39a is .correspondingly ground.

It will be noted that in my construction the valve element for the controlling valve 2| is mounted upon or in the closing member 55 and vmain valveor cut-oil? This simplifies the not intended to be operates therein independently of the valve element 29. Accordingly, the closing member serves as a removable mounting for the valve element, whereby the latter may be removed and cleaned when desired; and when the member is removed, the valve seat 39a is accessible for cleaning.

In my improved valve mechanism I provide a anda controlling valve, each operable independently ofthe other valve,

in associated relation to forma unitary device.

construction of the1 casing through which the fluid ows, eliminates the infsertion of a cut-oil valve in the supply pipe and simplifies the connection ythereof to the casing. lAs shown, the dual valve mechanism is associated with a thermostat mechanism in such manner that the thermostat mechanism, controlling valve and main valve constitute a unitary assembly readily connectible in the uid supply pim. To those skilled in the art to which my invention relates, many changes in construction and widely differing embodiments and applications of the invention will suggest themselves without departing from the spirit and scope thereof. My 'disclosures herein are purely illustrative and are in any sense limiting. What I claim is: l

ylo

- bination with a conduit for fluid, of a dual valve mechanism in said conduit and comprising a main valve and a controlling valve, the mountingv for the valve element of one valve being re movably supported within the other valve and detachable connectionsbetween said mounting and said other valve operable to close said other l valve as said mounting is removed, said connections being engageable as said mounting is replaced, whereby said mounting operates to open said other valve.

3. In a valved iuid supply means, the combination with a conduit for iiuid, of a dual valve mechanism in said conduit and comprising a main valve and a controlling valve, said main valve having a hollow rotary valve element andthe mounting for the valve element of said. controlling valve being removably secured in said rst mentioned valve element by a rotative movement of said mounting, and detachable co` ec- I tions between said mounting and said iirst envvalve element to vopen position ment of said member.

Y the removal tioned valve-element for operating the latter when said mounting is turned in either direction.

4. In a valved fluid supply means, the combina tion with a casing and a supply pipe for fluid, of a dual valve mechanism between said pipe and casing comprising a main vvalve having a hollow,

.rotary valve element and a controlling valve having a reciprocatory valve element, the mounting for the-last Amentioned element being removably supported in said rotary valve ,element and. ar-

ranged to close 'the outer end thereof, separate' means for operating said valve elements, and means between said mounting andsaid rotaryvalve operable to close the latter when the mounting is removed.A Y 5.. In a valvedV fluid' supply means, the combination with a conduit for uid, of a main valve having a hollow, rotary valve element, a member removably mounted in said element for closing the outer end thereof, a separate valve having a valve element movably mounted in said member. devices carried by said rotary valve 'element and said member member is Vin position and arranged to rotate said rotary valveelement to close said main valve by the removal of said member and to rotate said A by the lreplace- 6. In a valved fluid supply means, the combination with aV conduit for uid, of a main valve having a hollow,Y rotary valve element, a member removably mounted in said element for closing the outer end thereof, a separate valve having a valve element movably mounted in said member, devices carried by said rotary valve element and said member normally engaged when said member is in position and arranged to rotate said rotary valve ,element to `close said main valve by of said member and to rotate said valve element toopen position by the replacement of said jmember, and means for limiting the novementrof said rotary valve element in either direction.

limiting the movement of normally engaged when said` other valve, a

' wall when said member is 7. In a valved uid supply means, the combi-s nation of a conduit for Aiiuid, of a main valve having a hollow, rotary valve element, means for said valve element in one direction to its valve open position, means for limiting the movement of said element in the op posite direction, a member removably supported in said element for closing the outer end thereof,

va device on said member arranged, when it is operated into closing position in said element to engage a portion thereof and rotate said element to its valve open position and when removed rrom said valve element to rotate it from its valve open position to close the valve, and a separate valve having a valve element movably mounted in said member.

8. In a valved uid supply means, the combina tion with a conduit for iiuid, of two valves in said conduit, one valve having a hollow rotary valve element through which the fluid ows to theother valve, said element being provided on its outer end with an annular wall, a member removably mounted in said rotary valve element for mov= ably supporting the valve element for the other valve, and a ring carried by said member and normally held. in detachable engagement with said Wall when said member is in position and operable to rotate said Wall to rotate the adjacent valve element to closed position as said member is removed.

9. In a valved iiuid supply means, the combination with a conduit for fluid, of two valves in said conduit, one valve having a hollow rotary valve element through which the uid ows to the other valve, said element being provided on its outer end with an annular wall, a member removably mounted in said rotary valve element for movably supporting the valve element for the other valve, and a ring carried by said member and normally held in detachable engagement with said wall when said member is in position and operable to rotate said wall to rotate the adjacent valve ele= ment to closed position as said member is removed, said wall being arranged in the path of movement of said ring when said member is replaced, whereby said ring through its engagement with said wall moves the rotary valve to open position.'

10. In a valved fluid supply means, the comblnation with a conduit for iiuid, of two valves in said conduit, one valve having a hollow valve elefment through which the fluid flows to the .other valve and provided on its outer end with a Wall, a member removably mounted in said element for movably supporting the valve element of the device carried by said member and normally held in detachable engagement with said wall when said member is in position and operable through s aid wall to move said hollow valve element to valve closing position as said member is,y removed and to engage said wall and through it move said valveelement to valve position as said member is replaced.

'11. In a valved fluid nation with aconduit for iiuid, of two valves in said conduit, one valve having a hollow, valve eleouter end with a wall,

movably supporting the valve element of the other valve, a device carried by said member and noi'- mally held in detachablegengagement with said in position and' operable through said wall to 'move said hollow valve element to lvalve closing position as said member ein supply means, the combivalve element Iorfthe other valve opening.

FRANK H. SCHOENFEID.

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