US2162231A - Gas valve - Google Patents

Description

June13, 1939. R. E, SCHOENB'ERGER 2,162,231

GAS VALVE Filed April 20, 1958 2 Sheec s-Sheet 1 INVENTOR ATTORNEYS. v

Jan 13, 1939- R. E. SCHOENBERGER' 2,162,231

INVENTOR.

' ATTORNEYS.

Patented June 13, 1939 UNITED STATES PATENT OFFICE" Gas VALVE Robert E. Schoenberger, Shaker Heights, Ohio,

assignor to The W. J. Schoenberger Company, Cleveland, Ohio, a corporation of Ohio- Application April 20, 1938, Serial No. 203,208 Claims. (01.251-104 My invention relates to gas valves for controlling the flow of gas to a double gas range burner of the combined simmer and main burn er type.

5 The principal object of the invention is to provide a simply constructed eflicient valve, economical of manufacture and having four operative positions. In the first position of the valve a reduced supply of gas is directed to .thc simmer burner only. In a second position the simmer burner receives the full or maximum flow while i in the other two positions full and reduced supply of gas is respectively delivered to both burners.

A still further object of our invention is to provide a valve of this type which is simple in V construction and operation and very effective to accomplish the desired results and having certain details of structure and combination of parts hereinaiter more fully described. a

In the accompanying drawings:

Figure 1 is a partial section of the valve showing the leads to the simmer and main burner, taken on line l--l of Figure 3;

Figure 2 is a partial section of the valve on line 2--2 of Figure l; g

Figure 3 is a front end elevation of the valve;

Figure 4 is a diagrammatic view of the valve in section showing the leads to the main and simmer burner in shut off position;-

. Figure 5 is a section on line 55 of Figure 4;- Figure 6 is a diagrammatic view of the cap showing the floating washer in the position assumed when the valve is in shut off position;'

' 5 Figure '7 is a diagrammatic view of the valve in section showing the leads to main and simmer burner in low simmer position;

Figure 8 is asection on line 8-4! of Figure '7;

Figure 9 is a diagrammatic view of the cap and floating washer in low simmer position;

Figure 10 is a diagrammatic view of the valve in section showing the leads to main and simmer burner in full simmer position;

Figure 11 is a section on line ll-il of Figure 10;

46 Figure 12 is 'a diagrammatic view of the cap showing the floating washer in the position assumed by the washer when the valve is in full simmer position;

: Figure 13 is a diagrammatic view of the valve in section showing the leads to main and simmer burner in full simmer and main burner position;

Figure 14 is a section on line ll-M of Figum 13; 5 Figure 15 is a diagrammatic view of the cap and supply of gas for the valve housing is obtained floating washer in full simmer and main position;

Figure 16 is a diagrammatic view of the valve in section showing the leads to main and simmer burner in low simmer and low main burner position; a Figure 1'7 is a sectionon line, ll-l'l of Figure 16;-

Figure 18 is a diagrammatic view of the cap and floating washer in low simmer and low maino position; c m 1 1 Figure 19 is a perspective view lookingfrom the bottom showing the several stop positions inthe cap; I

. Figure 20 is a partial view in perspective of the 15 plug valve; 1

Figure 21 is aperspective view of the floating washer; and 1 Figure 22 is a partial perspective'view, of th valve stem. 1

Referring more particularly to thewdrawings the improved valve comprises a valve housing or casing I, having thereina plug receiving bore'2, which extends inwardly from the open outer end of the casing to the bottom wall 3 thereof. Pro1 jecting downwardly from the casing is a threaded nipple 4 adapted for mounting the valve preferably in horizontal position on the upper portion of a gas manifold, not shown, and whereby a through the vertically disposed gas supply passage .5, for feeding the burners not shown, however it will be understood that the valve may be supa ported in any desired position.

Projecting inwardly or rearwardly from the inner end of the housing I, on opposite sides of the longitudinal axis of the bore 2, are two screw threaded parallel nipples 6 and l forconnection with the respective main and simmer burners. The gas outlet passages 8 and 9 through these 40 nipples are provided with fixed needle valves i0 and II which cooperate with adjustablev threaded and perforated caps l2 and H for regulating the volume of gas which may flow through the cap perforations or orifices l3 and I4 to the usual mixing tubes, not shown. 1 a

The casing is formed with a drilled externally and internally threaded upwardly projectingex tension l5 forming a chamber l6. Extending through the bottom wall ll of chamber I6 is a restricted bore or passage l8 opening at its inner or lower end into the bearing surface of plug? receiving bore 2, on a plane with or just above" the tapered bottom wall 3 thereof. A drilled internally and externally threaded extension i9,

restrict the size of orifices or passages l3 and 22, 7

thus regulating the amount of gas which may now through these passages. Under certain gas conditions it might be practical to permanently restrict the orifices or passages l3 and 22 to the desired extent thus making it possible to eliminate the needle valves. Caps 2! close the .chambers l3 and to the atmosphere and enclose the needle valves and prevent unauthorized tampering after the valves have been adjusted. An upwardly and rearwardly inclined by-pass passage 21- communicates at its inlet end with the plug receiving bore 2, and at its other end with'the chamber I. A second by-pass passage 23, having a short branch '23, leads from .the bearing surface of the plug receiving bore to the chamber 20 and places this chamber in communication with the bore 2 at a point substantially opposite the gas inlet 3. There .is also a short laterally extending branch passage 8' which leads from the bearing surface of the plug receiving bore 2 directly to the inlet end oi the rearwardly extending gas outlet passage 3 for the main burner. Passages 3 and 3' and 23 and 23 respectlvely are in eifect, continuous passages and will be considered as such. The passages 21, 28 and l as well as the gas inlet passage 3, all open into the plug receiving bore in substantially a commonplane, and at a point considerably forward of the bottom or inner wall of the bore 2, while passages l3 and 24 also open into the bore in substantially a common plane adjacent the bottom of the bore. 4| A tapered plug valve 30 adapted to be snugly but rotatably received in the bore 2,- of the casing with its inner end spaced from the bottom wall 3 of the bore provides a space or chamber 6| in the lower end of the bore 2, with which the passages 13 and 24 communicate. The plug valve is formed with a. relatively small straight passage 3| extending transversely therethrough and communicating at opposite ends with the bore 2. A relatively large transverse slot or passage 32, is 5 also cut in the side of the plug in the same plane with and parallel to that of the passage 3|, both of these passages being adapted to be brought' into register with one or more of the casing passages I, 21, 23 and 8 when the plugis rotated to its respective positions. A substantially longitudinally disposed slot or passage 33 in the plug 33, places the transverse passage 32 and the space or chamber 6| in the inner end of bore 2, in communication with each other in all the plug valve.

In operation the. plug valve 33 is manually rotated by means of a valve stem 34 having its inner end extending into and interengaging with a hollow extension 35 formed on the outer end of the plug, the stem being provided with an operating handle 60 rigidly attached thereto by any suitable fastening means. Hollow extension 35 is formed with two oppositely arranged slots 38 and 31 of 'dillerent width to slidably receive finger portions 33 and 33, integrally formed on the inner positions of aieaasi are proportioned to lit the slots and 31 and are fol diiferent width to insurepro'per assembly.

A flanged aperture cap member 40 sleeved over thevalve'stem is formed with a depending flange 4| having apertured ears 42 and 42? which seat A upon and are secured to laterally extending apertured lugs 43 and 43, formed on the outer end of the casing I and in spaced relation to the end face thereof. The upwardly facing portion of the flange 4i is formed with a cut away portion or recess 44 adjacent one side of the ear 42, and the downwardly facing portion of the flange has a cutaway portion or recess 45 between the two ears 42, 42. One end of recess 44 serves as a stop shoulder 46 and the opposite end walls of recess 45 likewise provide'stop shoulders 41 and 42 for halting rotation of the valve at certain positions, when the elongated arm 49 of a lock plate or washer 50 is slidably but non-rotatably seated within the hollow extension 35 of the casing and in engagement with the slots or recesses 44-43. The arm 49 is of a size and length to extend snugly but slidably through slot 31 and to engage and ride over the edge of flange 4|.

When the valve is in oil or inactive position arm 43 engages stop shoulder 46 and prevents rotation in a clockwise direction. If the valve is now rotated in an anti-clockwise direction until the arm 49 of lock washer 50, registers with a recess 5| formed in the ear 42 of cap 40, a coil spring 32 seated in hollow extension 35 of plug 30, forces the arm 49 into this recess thus latching the valve in its first active position and in which areduced supply of gas is supplied to the simmer burner. Further anti-clockwise movement of the valve to its second position causes the lock washer to snap into recess 45 where it is held against reverse movement by the shoulder 41, except that when the stem is manually moved in an axial direction by pressing on handle 50, and the lock washer is thus moved out of recess 45, the valve movement can be reversed. In this second active position a full supply of gas is received by the simmer burner. If the anti-clockwise rotation of the valve is continued until the restricted flow of gas to both main and simmer burners, it is necessary to move the stem axially to disengage the lock washer from the shoulder 48 to permit further anti-clockwise movement of the valve, until halted by a stop shoulder 53.

As previously stated there are four active valve positions, low simmer only, high simmer only, full main and simmer and low simmer and main positions respectively. In the first position the relatively small or restricted transverse port or passage 3| through the valve plug registers at opposite ends with the main gas supply passage 5 and the upwardly and rearwardly inclined restricted by-pass passage 21 respectively. Gas thus flows through passages 5 and 3i and by-pass passage 21 to the chamber or pocket l6 and thence through needle valve controlled passage l8, into one side of the chamber or space 6|, at the bottom of plug receiving bore 2, from whence it, reachesthe simmer burner main outlet passage 9 by means of oblique passage 24, leading froni the opposite side of said space 6|. The apertured caps l2 and I2 are always set for the desired maximum flow of gas to the respective 75 burners, but the passage 3! is of the necessary restricted area to deliver only sufllcient gas to maintain a reduced or low flame at the simmer burner, it of course being understood that all other outlet passages leading from the bore 2 to the respective burners are closed by the plug in this position. v

In the second position of the valve plug the latter has been turned counter clockwise sufllciently to just bring the cross slot or port 32 into register with main gas supply passage 5 and to close the passage 21, the main burner outlet passage 8 also remaining closed. Gas now flows from the cross slot 32 down through the substantially longitudinally disposed slot 33 in the plug to the chamber or space M in the bottom of bore' 2, and thence out through passage 23 to the simmer burner outlet passage 9. as in the first position. The slots 32 and 32 and passages 24 and a are of a size to carry sumcient gas to maintain the "simmer burner on high or maximum flame requirements. Any gas which backs up into chamber l6 through passage it will of course be trapped, and therefore inellective because passage 21 is closed by the plug valve. 4

Further anti-clockwise movement brings the plug into third or full simmer and full main burner position, in which the transverse slot 32 in the plug registers with the main burner outlet opening or passage 2. A full flow of gas is thus permitted to flow from main supply passage h to cross slot 32 and thence direct through passage 8 to themain burner. At the same time a full supply of gas flows to the simmer burner from the transverse slot 32, down through the longitudinally disposed slot as, to the bottom of the casing bore 2, from where it passes out through passages 2d and ll to this burner. Bach pressure will also cause gas to back up from outlet passage 9 through valve controlled passage 22 into chamber 2d, and thence into by pass passage 2%. However, this back pressure gas is ineffective due to the fact that the passage 2b is closed at the bore 2 by the plug.

ply passage 5 and the other end into register with the by-pass passage 28, leading from the bore 2 to the chamber 20. A reduced or low volume of gas, sumcient to support a low flame at both burners, will thus flow through passages 3i and 28 into chamber 20, and thence out through restricted passage 22, into and through simmer outlet passage 9 to the simmer burner. At the same time, a back pressure is built up in chamber 20 due to the restricted size of the valve controlled inlet end of passage 22 which causes the excess supply of gas, or that gas not taken by the passage 9, to flow through the passage 22 into the bottom of plug receiving bore 2. From bore 2 this. gas flows through longitudinally disposed slot 33 into the cross slot 32 which is now in register with the casing outlet passage 8', in turn leading into main burner outlet passage 8, and thence to the main burner. 7

Having thus described the invention, what I. claim is: l. A gas range valve for a double burner comprising a casing with a plug receiving bore having an end wall, a solid plug having rotatable bearing in said bore and spaced from said end wall to form a gas chamber in the end of said bore, said casing having a first outlet passage leading from said gas chamber to one burner, said casing having a second outlet passage leading from the plug receiving bore to the other burner, said casing having a gas supply passage leading into the plug receivinglongitudinally disposed slotin the plug communicating at opposite ends with said transverse slot and said gas chamber such that in one rotary position of the plug a reduced volume of gas may flow through the gas supply passage into one of said pockets and thence through said gas chamber into said first outlet passage, the flow of gas to the second outlet passage-being sealed by the plug, and such that in a second rotary position a full volume of 'gas may new from the gas supply passage through said cross longitudinal slot to the gas chamber and thence to said first outlet pas,- sage, and such that in a third position of the plug a full volume of gas may flow from the gas supply passage through the cross slot direct to the second outlet passage and from the cross slot through the substantially longitudinally disposed slot to the gas chamber and thence to the first outlet passage, and such that in a fourth position a reduced volume of gas may flow from the gas supply passage through the cross by-pass passage into one of said pockets and thence to said first outlet passage, a portion of the gas delivered to said last mentioned pocket flowing into the gas chamber and thence through the slots in said plug to the sicond outlet passage and means for rotating the P g.

2. A gas range valve for a double urner comprising a casing with a plug receiving bore having an end Wall, a solid plug having rotatable bearing in said bore and spaced from said end wall to form a gas chamber in the end of said bore, said casing having a first outlet passage leading from said gas chamber to one burner, said casing having a second'outlet passage leading from the plug receiving l bore to the other burner, said casing having a gas supply passage leading into the plug receiving bore, a pair of hollow extensions on said casing forming pockets, each of said pockets having a.

restricted passage leading into said gas chamber, said casing having separate by-pass passages leading from the plug receiving bore to the respective pockets, said plug having a crossby-pass passage and a cross slot opening into the bearing surface of said plug receiving bore, said cross slot also communicating with said gas chamber such that in one rotary position of the plug a reduced volflow of gas to the second outlet passage being second outlet'passage and .from the cross slot to the gas chamber and thence to, the first outlet passage, and such that in a fourth position a reduced volume of gas may flow from the gas supply passage through the cross by-pass passage into one of said pockets and thence to said first outlet passage a portion oi. the gas delivered to said last mentioned pocket flowing into the gas in said bore and spaced from said end wall to form a .gas chamber in the end of said bore, said casing having a first outlet passage leading from said gas chamber to one burner, said casing having a second outlet passage leading from the plug receiving bore to the other burner, said casing having a gas supply passage leading into the plug receiving bore, a hollow extension on said casing forming a pocket, said pocket having a restricted passage leading into said gas chamber, said casing having a by-pass passage leading from the,plug receiving bore to the pocket, said plug having a cross bypasspassage and a cross slot opening into the bearing surface or said plug receiving bore, said cross slot also communicating with said gas chamber such that in one rotary position of the plug a reduced volume 01' gas may fiow through the gas supply passage into 'said pocket and thence through said gas chamber into said first outlet passage, the flow of gas to the second outlet passage being sealed by the plug, and such that in a second rotary position a full volume of gas may fiow from the gas supply passage through said cross slot to the gas chamber and thence to said first outlet passage, and such that in a third position of the plug a full volume of gas may flow from the gas supply passage through the cross slot direct to the second outlet passage and from the cross slot to the gas chamber and thence to the first outlet passage and means for rotating the plug.

4, A gas range valve for a double burner comprising a casing with a plug receiving bore having an end wall, a solid plug having rotatable bearing in said bore and spaced from said end wall to form a gas chamber in the end of said bore, said casing having a first outlet passage leading from said gas chamber to one burner, said casing having a second outlet passageleading from the plug receiving bore to the other burner, said casing having a gas supply passage leading into the plug receiving bore, a hollow extension on said casing forming a pocket, said pocket having a restricted passage leading into 'said gas chamber, said casing having a by-pass and thence through said gas chamber into said first outlet passage, the flow of gas to the second outlet passage being sealed by the plug, and such that in a second rotary position a full volume I from one of said slots to the gas chamber and thence to the first outlet passage and means for rotating the plug.

5. A gas range valve for a double burner comprising a casing with a plug receiving bore having an end wall, a solid plug having rotatable bearing in said bore and spaced from said end wall to form a gas chamber in the end of said bore, said casing having a first outlet passage leading irom said gas chamber to one burner,

said casing having a second outlet passage leading from the plug receiving bore to the other burner, said casing having a gas supply passage leading into the plug receiving bore, a pair of pockets formed on said casing, each of said pock ets having a restricted passage leading into said gas chamber, said casing having separate by-pass passages leading from the plug receiving bore to the respective pockets, saidplug having a cross by-pass passage and a cross slot parallel to and substantially in the same plane as said cross bypass passage, opening into the bearing surface, of said plug receiving bore, the main supply passage, the inlet end of said second outlet passage and said casing by-pass passages opening into the plug receiving bore in substantially a common plane, said cross slot also communicating with said gas chamber such that in one rotary posis tion of theplug a. reduced volume of gas may fiow through the gas supply passage into one of said pockets and thence through said gas chamber into said first outlet passage, the flow of gas to the second outlet passage being sealed by the plug, and such that in a second rotary position a full volume oi. gas may fiow from the gas supply passage through said cross slot to the gas chamber and thence to said first outlet passage, and such that in a third position of the plug a full volume of gas may flow from the gas supply passage through the cross slot direct to the second outlet passage and from the cross slot to the gas chamber and thence tothe first outlet passage, and such that in a fourth position a reduced volume of gas may flow from the gas supply passage through the cross by-pass passage into one of said pockets and thence to said first outlet passage, a'portion of the gas delivered to said last mentioned pocket flowing into the gas chamber and thence through the slot in said plug to the second outlet passage and means for ro- Q tating the plug. 1

ROBERT E. SCHOENBERGER.

Images