US2491239A - Valve - Google Patents

Description

1949 w. J. WILDERN 2,491,239

VALVE Filed March 29, 1946 //v VENTOR W/Y/iam d. Vl/l'lderfl ATTQRNEYJ Patented Dec. 13, 1949 William J. Wildern, Detroit,--Mich;,--assignorto- Detroit Brass & Malleable;.-Works;-. 1Detroit, Mich., a corporation of Michigan.

A l c t o Ma ch 9 151, her al No; 6 53.0 3 5 Claims. (chem-ares);

Thisvinvention relates to a valve and it has to do particularly with a valve structure useful for controlling the flow of gas to a gas burner.

As is. well known to those versed in the art and those who use gas burning equipment, a high or full flame is obtained when the valve ports are in complete registry or, in other words, when the valve is wide open, and a lower flame may be -obtained by throttling the valve ports to partially .close the samethus' allowing assage of a lower volume of gas- Frequently, such a position of a valve is termed a simmer position because a relatively low or simmering flame may be obtained.

The object of the present invention is to provide an improved valvestructure which will preferably afford an indication to the user when the ports'of the valve are widely opened or, in other words, in the full-on position and to provide a further indication when the valve has been adjusted to the simmer position. This second indication is preferably accomplished by means of a limit stop which arrests movement of the turnable valve member. 'Included in the objects of the invention is the provision of a novel and simp1ified construction wherein the limit stop for the simmer position of the valve is adjustable so that whena valve'position is ascertained, which will give the desired type of simmer or low flame, the limit stop may be set in that position; Thereafteritisonly necessary for the operator to ma-.

nipulatethe valve until the adjusted limit stop functions; at which time the desired simmer flame is obtained.

A valve structure constructed in accordance with-the invention is disclosed in the accompanye 1 5;

ing drawings:

Fig. .1 is a cross sectional view of a valve structurermade in accordance with the invention showing the same in full on position and illustrating ome of the adjustable means.

Fig. 2 is a sectional View taken substantially on line '2-2 of Fig. 1 showing the limit stop ad-.

justable control member.

Fig.3 is a sectional view taken on line 33- 3 of Fig.1 showing a fixed control member.

its a sectional view. taken on line 4-;4. oi. Fig. 1 showing a control member movable withe'val em mber- Fig. 5 is a sectional view taken on line 5- 5 ofFig. 1 Showing. the full open position of the valve ports.

Fig. ,6 is a view. similar to, Fig.2 showingan adjustedposition for the limit stop.

a Q Y SFS .e;ct onal view:taken-ssubstans.

key-way s illustrated-at l9."

2 tially on line 1-1 of Fig. 3 showing a nub on one of the control members.

While-the valve bod and the valve member generally may take various forms,- the valveex amplified in "'Fig. has a-body l with a-valve chamber -2-therein,- leading towhich is a valve inl'et'port 3 usually provided in a threaded exten s'ion'asindicatedgand leading fromthe end '01 which is an outlet 4 which may be equippe'd'with a'desired controlling jet orifice 5. As indicated, the body is -'provid-'ed with a relatively enlarged end portion 6 which provides achamber' 1 and this end is internally threaded as shown for the reception of a cap '8. As shown in Fig. 4', the body is providedwith' cut-away portions or slots 9 and In which extend through the threaded end "po'r'tioI-rB' for the reception of some controlling members. Ihese-slots are difierent in size, as shown, so that the controlling members may be assembled n-o'nl'y' jl e position'w hich is the per it.

A tapered'plug type of controlling valve mem herds-illustrated at I5, the Samefitting Within the chamber '2' and it" has a port It arranged to register or partially register with the inlet 3 and an axial passage l1 which registers with the outlet "The valve memberhas a stem l8 which extends'throug'h the cap and the stem is intended toreceive a handletnot' shown) for operating purposes.- Theste] is provided with a suitable The operation'of this type pf valve is well understood bythios'e skilledin the art, and its oper ation'may be easily'ascertained by considering the drawings. When the valve member I 5 is positioned as shown in Fig. 5; the port l6 fully aligns with the inletQ3- and a full supply of gas flows therethroug-h. Wh'enl the valve member'is turned about counter c'lock'wis'e to position the port as shown by the dotted lines :12, the valve is ofi.

ably. provided. These elements may betermed washers or discs'and are demonstrated in Figs.

1 to 4 inclusive. T

i First;' however, there is a coil spring 25 positidned'dnth chamber-1 so'that "it pushes the plugwalve against its seat. Positioned adjacent theend .ofth'e coiled spring is an operatingdi s'c 26. fThis flisc-is keyed to the stem by a key 21 fitting. m the keyway =l:9:so that it rotates with V the valve (Fig. 4). It has also a raised abutment or hub 28 which projects "from the plane of its face. The disc 26 also has a stop member 29 which projects in an axial direction away from the spring 25 as shown in Fig. 1.

Another disc 30 (Fig. 3) is positioned over the stem in face to face relationship with the disc 26. This disc has two extending key members 3| and 32, which fit into the slots 9 and ll] of the valve body and the extension 3| projects outwardly of the body and is provided with a threaded aperture as indicated. The disc 30 also has a cut-away portion or notch 33 for receiving the nub 28 for purposes which will presently appear. In the vicinity of its inner periphery the disc 30 is enlarged so as to provide a passage or way 34 for the stop member 29. There is a stop shoulder 35 at one end of the way, and, out of necessity, there is an end structure of some sort 36 at the opposite end of the way. It will be noted that the radial extent of the nub 28 and recess 33 exceeds that of the way 34 with the result that the nub will ride over the way 34 and will not enter the same.

A third disc 40 (Fig. 2) is placed over the stem and faced against the disc 30, and this disc, as shown in Fig. 5, has an extension which passes through tfiblot 9. The base of this extension, as shown at 4|, is relatively small in circumferential extent so that the disc may be oscillated. The head of the extension at 42 is enlarged and provided with a slot of arcuate form 43 for the reception of a screw 44 arranged to be screw threaded into the opening in the extension 3!. The disc 40 also has a projecting finger 45 which extends into the slot II), the purpose of this being to insure a correct position of the disc 40 when it is assembled. Thus, the disc 40 can only be mounted in its correct position as it cannot be mounted upside down or in reversed position. The adjustable disc 40 is enlarged adjacent the stem to provide a passage or way 46 for the stop member 29 and at one end of this passage is a stop 41 while the passage terminates at its opposite end as at 48.

It will be noted by reference to Figs. 3 and 4 that the stop 35 is positioned so that it projects beyond the shoulder 48; it will also be noted that the stop 4! of the adjustable disc is positioned beyond the shoulder 36 of the fixed disc. The stop member 29 projects substantially through and operates in the two ways 34 and 46 of the fixed and adjustable discs. The parts are held in assembly by the positioning of the cap 8 as indicated in Fig. 1.

The operation of the structure is as follows: When the parts are in a position shown in the drawings, the stop member 29 is in an intermediate position in the passages 34 and 46, the port l6 fully registers with the inlet port 3 and the valve is widely opened for a full gas flame. In this position the nub 28 lies in the recess 33. To turn the valve off, the valve member is rotated counterclockwise as Fig. is viewed until the stop member 29 abuts the stop shoulder 35. The shoulder or abutment 48 lays no function in this action. The stop shoulder 35 is fixed, the same being on the fixed disc, and thus the port I6 is disposed at position as. In this position the nub 28 has been forced out of the recess 33 and it slides along the surface of the fixed disc 30. In doing so, the disc 26 has been urged slightly to the right, as Fig. 1 is viewed, this being permitted by the action of the spring 25. above the nub 28 has a greater radial extent than As pointed out.

the passageway 34, and therefore, does not enter the same. To turn the valve on, it is rotated about clockwise as Fig. 5 is viewed, and the nub 2B enters the recess with a snap action under the action of the spring 25. When this occurs the operator is apprized of the fact that the valve is in wide open position.

To adjust the valve to the simmer position the valve member is rotated further clockwise and this may continue until the stop member 29 abuts the stop shoulder 41 on the adjustable disc 40. The port l6 may now be in a position approximating position y shown in Fig. 5. This simmer position may be adjusted and set so that the desired simmer fiame is obtained when the stop member 29 abuts the stop shoulder 41. This adjustment is made by loosening the screw 44 and oscillating the adjustable washer 49. One adjusted position is shown in Fig. 6 where the adjustment is for a high simmer flame. This adjustment advances the stop shoulder 41. An adjustment in the opposite direction retracts the shoulder 41 to thus lower the simmer. The clearance between the finger 45 and the slot l0 and the clearance between the ensmalled part 4| of the extension in the slot 9 provides for maximum adjustment in either direction within the limits of the slot 43. Moreover, the position of the shoulder 38 is such that it at no time functions as a stop and the position of the shoulder 48 is such that it at no time functions as a stop. In other words, there is a fixed stop 35 for the on position and an adjustable stop 41 for the simmer position. By providing an arrangement with a series of discs, no special construction is required on the valve body itself. The fixed disc 39 becomes, in effect, a part of the valve body in that it is immovable relative thereto but it is more feasible and cheaper to provide such a disc instead of providing an intergral part on the body for the reception of the locking screw 44.

I claim:

1. A valve comprising, a ported valve body and a ported valve member which is turnable in the body for bringing the ports into and out of registry, a disc member mounted in substantial fixed position relative to the valve body and having an extension, another disc member having an extension, the first named disc member having a stop shoulder and the second named disc member having a stop shoulder, a stop member turnable with the valve member for engaging the said shoulders with the ports out of registry and in partial registry respectively, the said extensions of the disc members extending laterally through and to the outside of the body, and means for adjustably connecting the said two extensions at a location outside the valve body whereby the second disc member may be rotatably adjusted to vary the position of the stop member thereon.

2. A valve comprising, a ported body member and a ported valve member turnable in the body member for bringing the ports into and out of registry, said valve member having a stem, a cap for the body member through which the stem extends, a spring positioned around the stem and engaging the valve member, a plurality of discs between the spring and the cap, one disc being mounted to turn with the valve member and having a stop lug thereon, a second disc fixed relative to the valve body and having a stopping shoulder for engaging the lug to position the valve with the ports out of registry in off position, a third disc having a shoulder for engaging the stop lug and positioning the valve member with the ports in partial registry in simmer position, the body member having a slot therein and. the second and third discs having projections extending through the slot to the outside of the body member, and means for adjustably connecting the projection of the third disc to the projection of the second disc at a location outside the body member to adjustably position the stop shoulder on the third disc.

3. A valve comprising, a ported body member and a ported valve member turnable in the body member for bringing the ports into and out of registry, said valve member having a stem, a cap for the body member through which the stem extends, a spring positioned around the stem and engaging the valve member, a plurality of discs between the spring and the cap, one disc being mounted to turn with the valve member and having a stop lug thereon, a second disc fixed relative to the valve body and having a stopping shoulder for engaging the lug to position the valve with the ports out of registry in off position, a third disc having a shoulder for engaging the stop lug and positioning the valve member with the ports in partial registry in simmer position, the body member having a slot therein and the second and third discs having projections eX- tending through the slot to the outside of the body member, means for adjustably connecting the projection of the third disc to the projection of the second disc at a location outside the body member to adjustably position the stop shoulder on the third disc, and co-acting means between the first and second discs to indicate an intermediate position of the valve member with the ports substantially in full registry.

4. A valve comprising, a ported valve body and a ported valve member which is turnable in the body for bringing the ports into and out of registry, a projecting operating stem for the valve member, means including a projection turnable with the valve member, a first limit stop substantially fixed relative to the valve body, a second limit stop, said projection being positioned for movement between said limit stops whereby to limit the rotary movement of the valve member, the first limit stop positioning the valve member with the ports out of registry when the projection abuts the same, the second limit stop positioning the valve member with ports in substantial registry when the projection abuts the same, the second limit stop being connected to the body for limited rotary adjustment relative to the body, to thereby control the registry of ports when the said projection abuts the second limit stop, and holding means positioned laterally of the operating stem for holding the second limit stop in adjusted position, said holding means having a part facing in the direction of the extent of the projecting stem by which the holding means may be engaged and operated.

5. A valve comprising, a ported valve body and a ported valve member which is turnable in the body for bringing the ports into and out of registry, a projecting operating stem for the valve member, means including a projection turnable with the valve member, a first limit stop substantially fixed relative to the valve body, a second limit stop, said projection being positioned for movement between said limit stops whereby to limit the rotary movement of the valve member, the first limit stop positioning the valve member with the ports out of registry when the pro- J'ection abuts the same, the second limit stop positioning the valve member with ports in substantial registry when theprojection abuts the same, the second limit stop being connected to the body for limited rotary adjustment relative to the body, to thereby control the registry of ports when the said projection abuts the second limit stop, and screw means positioned laterally of the operating stem for holding the second limit stop in adjusted position, the head of the screw means facing in the direction of the extent of the projecting stem, by which the same may be engaged and operated.

WILLIAM J. WILDERN.

REFERENCES CITED The following references are of record in the file of this patent:

UNITED STATES PATENTS Number Name Date 2,030,150 Mueller Feb. 11, 1936 2,043,971 Marvin June 9, 1936 2,262,703 Stuckenholt Nov. 11, 1941

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