US2162232A - Gas valve - Google Patents

Description

June 13, 1939.

R. E SCHOENBERGER GAS VALVE 2 Sheets-Sheet 1 Filed May '7, 1938 INVENTOR +W MW W A TTORNEYS.

June 13, 1939. R. E, SCHOENBERGER 2,162,232

GAS VALVE Filed May 7, 1938 2 Sheets-Sheet 2 2 k "I E- i IN VEN TOR W x} ATTORNEY g Patented June 13, 1939 UNITED STATES PATENT OFFICE GAS VALVE Application May 'z, 1938, Serial No. 206,651

4 Claims.

This invention relates to gas valves for controlling the flow of gas to a double gas range burner of the combined simmer and main burner type.

5 One of the principal objects of the invention is to provide a simply constructed eflicient valve,

economical of manufacture and having four positions, wherein, in the first position of thevalve a reduced supply of gas is directed to the simmer burner only; in a second position the simmer burner receives the full or maximum flow, while in the other two positions full and reduced supply of gas is respectively delivered to both burners.

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

* 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-I of Figure 3;

Figure 2 is a partial section of the valve on line 2-2 of Figure 3; V

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;

-J 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;

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

Figure 8 is a section on line 8-8 of Figure 7;

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

0 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-|l of Figure 10;

5 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 3 in section showing the leads to main and simmer burner in full simmer and main burner position;

Figure 14 is a section on line l4l4 of Figure 13;

Figure 15 is a diagrammatic view of the cap and 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;

Figure 17 is a section on line l'l-l'l of Figure 16;

Figure 18 is a diagrammatic view of the cap and floating washer in low simmer and low main position; 5

Figure 19 is a perspective view looking from the bottom showing the several stop positions in the cap;

Figure 20 is a the plug valve;

Figure 21 is a perspective view of the floating washer; and

Figure 22 is a partial perspective view of the valve stem. The improved valve comprises a valve hous- 15 mg or casing I, having therein a plug receiving bore 2, which extends inwardly from the open outer end of the casing to the bottom wall 3 thereof. Projecting downwardly from the casing is a threaded nipple 4 adapted for mounting the 20 valve, preferably in horizontal position, on the upper portion of a gas manifold, not shown, and whereby a supply of gas for the valve housing is obtained through the vertically disposed gas supply passage 5, for feeding the burners not shown, 25 however it will be understood that the valve may be supported in any desired position.

Projecting inwardly or rearwardly from the inner end of the housing I, on opposite sides of partial view in perspective of 10 the longitudinal axis of the bore 2, are two screw threaded parallel nipples 6 and l for connection with the respective main and simmer burners. The gas outlet passages 8 and 9 through these nipples are provided with fixed needle valves in and II which cooperate with adjustable threaded and perforated caps l2 and i2 for regulating the volume of gas which may flow through the cap perforations or orifices l3 and M to the usual mixing tubes, not shown.

A tapered plug valve l5 adapted to be snugly but rotatably received in the bore 2 of the casing I, with its inner end spaced from the bottom wall 3 of the bore, provides a space or chamber H5 in the lower end of the bore with which the simmer burner outlet passage 9 communicates. Thus a small orifice or passage ll through the wall of the bore, adjacent the bottom wall 3 thereof, leads directly to the simmer passage 9. The main burner outlet passage 8, communicates at its outer end with the bore 2, through the medium of a cross passage 18, which extends through the casing to the bearing surface of the bore. The main supply passage 5 terminates at its inner end in the bearing surface of the plug receiving bore, in the same vertical plane as that 5.3 of the passage or orifice l8.

The valve plug is formed with a relatively large transverse slot l9 cut in the side of the plug. There are also two aligned oppositely disposed bores or pockets 20 and 2| drilled in the plug parallel to the cross slot. Small by-pass orifices 22 and 28, drilled through the walls 24 and 26 separating the pockets 24 and 2! from the cross slot i9, place the inner ends 0! these pockets in communication with the slot. A substantially longitudinally disposed slot 26, in the plug ll, places the transverse slot or passage i9 and the space or chamber it, in communication with each other in all positions of the Plug.

In operation the plug valve i6 is manually rotated by means of a valve stem 34 having its inner end extending into and interengaging with a hollow extension 26 formed on the outer end of the plug, the stem being provided with an operating handle 66 rigidly attached thereto by any suitable fastening means. Hollow extension 35 is formed with two oppositely arranged slots 36 and 31 of different width to slidably receive flnger portions 36 and 39, integrally formed on the inner end of stem 24 when the latter is partly inserted within the hollow extension. The finger portions are proportioned to flt the slots 26 and I1 and are of different width to insure proper assembly.

A flanged apertured cap member 40 sleeved over the valve stem is formed with a depending flange 4! having apertured ears 42 and 42' which seat 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 cut away portion or recess 46 between the two ears 42, 42. One end of recess 44 serves as a stop shoulder 46 and the opposite end walls of recess 46 likewise provide stop shoulders 41 and 48 for halting rotation of the valve at certain positions, when the elongated arm 49 of a lock washer 50, is slidably but non-rotatably seated within the hollow extension 35 of the casing and in engagement with the slots or recesses 44-45.

When the valve is in oil or inactive position arm 49 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 69, registers with a recess 6| formed in the ear 42 of cap 40, a coil spring 62 seated in hollow extension 35 of plug i6, forces the arm 49 into this recess thus latching the valve in its flrst active position and in which a reduced 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 44 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 60, and the lock washer is thus moved out of recess 44, 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 lock washer engages shoulder 46, the valve will be in position to deliver a full or maximum supply of gas to both burners. In order to rotate the valve to its fourth position, in which there is a 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 46 to permit further anti-clockwise in the inner end of bore 2,-

movement of the valve, until halted by a stop shoulder 68.

As previously stated there are four active valve positions, low simmer only. hi h simmer only. full main and simmer and low simmer and main positions respectively. In the first position, the inlet end of the short pocket or e 26 in the plug registers with the gas supply passage 6, thus permitting gas to flow into this passage or pocket and thence through the relatively small by-pass oriilce or passage 22, leading from pocket 26 to the cross slot I. From the cross slot II the flow is through longitudinally disposed slot 26 to the chamber l6 at the bottom of plug receiving bore- 2 and thence out through passage II to the simmer burner outlet passage 9, the outlet passage 8 to the main burner being closed in this position. The apertured caps l2 and i2 are always set for the desired maximum flow of gas to the respective burners, but the restricted or metered by-pass passage 22 is of a size or capacity to amply meet maximum low flame simmer burner requirements.

Further anti-clockwise movement brings the plugs into second or full simmer position in which the transverse slot l9 in the plug valve communicates with the simmer burner outlet 9, as well as with the supply passage 6, the outlet passage to the main burner remaining closed. A full flow of gas will thus flow into cross slot i9 and through the substantially iongitudinally disposed slot 26 and thence into the chamber or space iii in the end 01 bore 2. From chamber ii the gas passes out through orifice l1 into the simmer burner outlet passage 9, as in the first or low simmer position.

Still further rotation in an anti-clockwise direction brings one end of the cross slot i9 into communication with the main burner outlet passage 6, while the other end of the cross slot remains in communication with the supply passage. A full volume of gas will now flow through the slots i9 and 26 into chamber i6 and thence to simmer burner outlet passage 9. At the same time a portion of the gas from the main supply, sufiicient to maintain the main burner on high flame, flows from slot i9 into and through main burner outlet passage 8.

Slight anti-clockwise rotation of the valve will now bring the passage or pocket 2i into register with supply passage 5, and the cross slot I9 will remain in communication with the main burner outlet passage 8 and the supply to both burners will be reduced. Thus a reduced volume of gas from pocket 2| will flow through the metered or restricted by-pass orifice or passage 22 to the cross slot i9 and thence through slot 26 to chamber l6 and simmer burner outlet 9. At the same time a portion of this gas, enough to support a reduced main burner flame flows from the cross slot i9 to main burner outlet passage 6. It will be noted that the by-pass oriflce or passage 22, leading from pocket 20, meets the low flame requirements of the simmer burner only, whereas the by-pass 23 services both burners when the valve is in its last position. Consequentiy the latter by-pass is larger than the former, or of an area to carry a maximum supply of gas for maintaining a reduced or low flame at both burners.

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 plug having rotatable bear ing in said bore and spaced from said end wall to form a gas chamber in the end of said bore, a first outlet passage leading from said gas chamber to one burner and a second outlet passage leading from the bearing surface of said bore to the other burner, said casing having a gas supply passage opening into the bore in a plane with the inlet end of said second outlet passage, said plug having a cross slot opening into the bearing surface oi. said plug receiving bore in a plane with said gas supply passage, and a substantially longitudinally disposed slot in the plug communicating at opposite ends with said transverse slot and said gas chamber, and two restricted by-pass passages placing said transverse slot in communication with the hearing surface of said bore such that in one rotary position of the plug a reduced volume of gas may fiow through one of said by-pass passages into the cross slot and thence through the iongitudinally disposed slot into said gas chamber and first outlet passage, the fiow of gas to the second outlet passage being sealed by the plug, and such that in a second position a full volume of gas may flow from the gas supply passage directly through said slots to said gas chamber and first outlet, and such that in a third position of the plug a full volume of gas may fiow from the gas supply passage through the said cross slot direct to the second outlet passage and through both slots to the gas chamber and thence to the first outlet passage, and such that in a fourth position a reduced volume of gas may fiow from the gas supply passage through the other of said by-passes to said cross slot direct to said second outlet passage, 2. portion of the gas delivered to the cross slot flowing into the gas chamber through said longitudinally disposed slot and thence to said first mentioned outlet passage and means for rotating said plug.

2. A gas range valve for a double burner comprising a casing with a plug receiving bore having an end wall, a plug having rotatable bearing in said bore and spaced from said end wall to form a gas chamber in the end of said bore, a first outlet passage leading from said gas chamber to one burner and a second outlet passage leading from the bearing surface of said bore to the other burner, said casing having a gas supply passage opening into the bore, said plug having a cross slot opening into the bearing surface of said plug receiving bore, and a sub stantially longitudinally disposed slot in the plug communicating at opposite ends with said transverse slot and said gas chamber, and two restricted by-pass passages placing said transverse slot in communication with the bearing surface of said bore such that in one rotary position of the plug a reduced volume of gas may fiow through one of said by-pass passages into the cross slot and thence through the longitudinally disposed slot into said gas chamber and first outlet passage, the flow of gas to the second outlet passage being sealed by the plug, and such that in a second position a full volume of gas may flow from the gas supply passage directly through said slots to said gas chamber and first outlet, and such that in a third position of the plug a full volume of gas may flow from the gas supply passage through the said cross slot direct to the second outlet passage and through both slots 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 other of said bypasses to said cross slot direct to said second outlet passage, a portion of the gas delivered to the cross slot flowing into the gas chamber through said longitudinally disposed slot and thence to said first mentioned outlet passage and means for rotating said plug.

3. A gas range valve for a double burner comprising a casing with a plug receiving bore having an end wall, a plug having rotatable bearing in said bore and spaced from said end wall to form a gas chamber in the end of said bore, a first outlet passage leading from said gas chamber to one burner and a second outlet passage leading from the bearing surface of said bore to the other burner, said casing having a gas supply passage opening into the bore in a plane with the inlet end of said second outlet passage, said plughaving a cross slot opening into the hearing surface of said plug receiving bore in a plane with said gas supply passage, and a substantially longitudinally disposed slot in the plug communicating at opposite ends with said transverse slot and said gas chamber, and a restricted by-pass passage placing said transverse slot in communication with the bearing surface of said bore such that in one rotary position of the plug a reduced volume of gas may fiow through said by-pass passage into the cross slot and thence through the longitudinally disposed slot into said gas chamber and first outlet passage, the flow of gas to the second outlet passage being sealed by the plug, and such that in a second position a full volume of gas may flow from the gas supply passage directly through said slots to said gas chamber and first outlet, and such that in a third position of the plug a full volume of gas may fiow from the gas supply passage through the said cross slot direct to the sec'ond outlet passage and through both slots to the gas chamher and thence to the first outlet passage, and means for rotating said plug.

4. A gas range valve for a double burner comprising a casing with a plug receiving bore having an end wall, a plug having rotatable hearing in said bore and spaced from said end wall to form a gas chamber in the end ofsaid bore, a first outlet passage leading from said gas chamber to one burner and a second outlet passage leading from the bearing surface of said bore to the other burner, said casing having a gas supply passage opening into the bore, said plug having a cross slot opening into the bearing surface of said plug receiving bore, and a substantially longitudinally disposed slot in the plug communicating at opposite ends with said transverse slot and said gas chamber, and a restricted passage placing said transverse slot in communication with the bearing surface of said bore such that in one rotary position of the plug a reduced volume of gas may flow through one of said by-pass passages into the cross slot and thence through the longitudinally disposed slot into said gas chamber and first outlet passage, the flow of gas to the second outlet passage be ing sealed by the plug, and such that in a. second position a full volume of gas may flow from the gas supply passage directly through said slots to said gas chamber and first outlet, and such that in a third position of the plug a full volume of gas may fiow from the gas supply passage through the said cross slot direct to the second outlet passage and through both slots to the gas chamber and thence to the first outlet passage, and means for rotating said plug.

ROBERT E. SCHOENBERGER.

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