US2162233A - Double burner valve - Google Patents

Description

June 13,1939, ,R. E, SCHOENBERGER DOUBLE BURNER VALVE 2 Sheetsl-Sheetl Filed May 20, 1938 June 1939- R. E. SCHOENBERGER DOUBLE BURNER VALVE Filed May 20, 1938 2,162,233 2 sheets-Sheet 2 Patented 13,1939 I r PATE T, omen DOUBLE BURNER VALVE RobertE. Schoenberger, Shakerlleights, Ohio, assignor to The W. J. Schoenberger Company, Cleveland, Ohio, a corporation of Ohio Application May 2i), 5 Claims.

.The invention relates to gas valves for controlling the flow of gas to a combined simmer and main burner for gas ranges and the like.

An object of the invention is to provide a sim- 5 ply constructed economical and efficient valve having five operative positions, namely, a low simmer position in which a reduced supplyof gas, suiiicient'for supporting maximum low flame requirements at the simmer burner; is delivered to the simmer -burner; a highsimmer position in which the simmer burner receives the'full or maximum supply of gas for high flame requirements; a full simmer and full main burner posi- 1 tion in which both burners receive a suflicient flow of gas to satisfy maximum full flame requirements; a low simmer and low main position in which a maximum flow of gas for simultaneously supporting maximum low or intermediate cooking flame at both burners is supplied to the respec- 20 tive burners and finally a position in which the reduced volume of gas supplied to both burners in the low simmer position is further reduced to a point where itwill merely keep the flame alive for warming purposes.

Other objects and advantages of the. invention will be apparent as the description is read in connection with the accompanying drawings, in

which:

Figure 1 is a partial plan view and section 30 taken on line |l of Figure 2, showing the body of valve cut away to expose the gas passages;

Figure 2'is a side view partly in section on line 2-'-2 of Figure 1;

Figure 3 is a. section through the valve taken 2. online 33 of Figure 1;

Figure 4 is a bottom perspective view of th locking cap showing the stop positions for the lock washer during normal valve operations;

I Figure 5 is a diagrammatic sectional view of the 40 valve taken on line 3-3 of Figure 1 showing v operative passages for gas in low simmer position,

the flow of gas being indicated by arrows;

Figure 6 is a diagrammatic sectional view of the valve taken on line 33 of Figure'l showing operative passages forgas in full simmer position;

Figure ,7 is adiagrammatic sectional view of i the valve'taken on line 3-3 of Figure 1 showingoperative passages for gas infull simmer and mainburner position; v v t s Figure 8 is a diagrammatic sectional view of the valve taken on'line 3-3 of Figure 1 showing I operativepas'sag'es for gas "in simmer and main burner medium fiamepositiom I "Figure 9is a diagrammatic sectional view of M the valve taken online 33 of Figure 1 showing 1933, Serial No. 209,122

operative passages for gas in simmer and mai burners in very low flame position;

Figure 10 is a top plan view of valve showingvalve stem lugs;-

Figure 11 is a pl view of the lock washer or key; and

Figure 12 is a section through the valve stem showing the valve operating lugs.

Having more particular reference to the drawings my improved valve comprises a'housi'ng or casing I having therein-a plug receiving here], which extends inwardly from the open outer end of the casing to the bottom wall 3 thereof. Projecting downwardly and centrally from a transversely extending enlargement 4, integrally formed on the under side-of the casing l is a threaded nipple 5, adapted for mounting the valve preferably in a 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 6, for feeding the burners, also not shown, however it will be understood that the valve may be supported in any desired position. Projecting inwardly or rearwardly from. th inner end of the housing or casing I, on opposite sides'of the longitudinal axis of the bore}, are two screw threaded parallel nipples I and 8 for connection with the respective main and simmer burners. The gas outlet passages 9 and I through these nipples are provided with fixed needle valves H and I! which cooperate with adjustable threaded and perforated caps l3 and I4, for regulating the volumelof gas which may flow through the cap perforations or orifices. l and Hi to the usual mixing tubes, not shown.

The transversely extending enlargement I is tapered slots for receiving the lock washer and formed with opposed pockets or chambers I! and l8 on oppositesides of and alined with the main 'gas supply nipple 5. Extending inwardly throughthe bottom walls l9 and 20 of these respective pockets are a pair of straight axially alined bypass passages 2| and 22 which place the cham- 'bers l1 and It in communication with the main gas supply passage 6. A second pair of angularly disposed short by- pass passages 23 and 24 extend from the respective pockets to the bearing surface'of the bore 2. Needle valves 25' and 26 screw-,

passage 9 of nipple I which services the main burner.

A tapered plug 39 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 3|, in the lower end of the bore 2, which communicates with the outlet passage l leading to the simmer burner through a passage 32 formed in the bottom wall 3, of chamber 3|. The plug valve is formed with a transverse slot or passage 33 cut in the side thereof and a longitudinally disposed slot or passage 34, which places the space or chamber 3| in the inner end of bore 2, in communication with each other in all positions of the plug.

. The plug is also formed with an angularly disposed passage 35, in the plane of transverse passage 33, and leading from the periphery of the plug adjacent one end of passage 33 through an inlet orifice 35' and to an outlet orifice 35" in In operation the plug valve 30 is manually rotated by means of a valve stem 36 having its inner end extending into and interengaging with a hollow extension 31 formed on the outer end of the plug, the stem being provided with an operating handle 39 rigidly attached thereto by any suitable fastening means. Hollow extension 31 is formed with two oppositely arranged slots 39 and 46 of different width to slidably receive finger portions 4| and 42, integrally formed on the inner end of stem 36 when the latter is partly inserted within the hollow extension. The finger portions are proportioned to fit the slots 39 and 49 and are of different width to insure proper assembly.

A flanged apertured cap member 43 sleeved over the valve stem is formed with a depending flange 44 having apertured ears 45 and 46, which seat upon and are secured to laterally extending apertured lugs 41 and 48, formed on the outer end of the casing I and in spaced relation to the end face thereof. The downwardly facingportion .of the flange 44 is formed with a cut away portion or recess 49 between the cars 45 and 46, and the upwardly facing portion of the flange has a cut away portion or recess 56 and an extension adjacent one side of ear 46. Opposite sides or ends of extension 5| serve as stop shoulders 52 and 53 and opposite end walls of recess 49 likewise provide stop shoulders 54 and 55 for halting rotations of the valve at certain positions, when the elongated arm 56 of a lockwasher or'plate 51, is slidably but non-rctatably seated within the hollow extension 31, of the casing l and in engagement with the slots or recesses 49 and 59. The arm 56 is of a size to fit snugly but slidably in slot 39 to engage and ride over the edge of flange 44.

When the valve is in off or inactive position arm 56 of locking plate or washer 51 is in engagement with stop shoulder 53 and can only be rotated in an anti-clockwise direction. Upon rotation in this direction until the arm 56, registers with a cam recess 59 formed in ear 46 of cap 43, a coil spring 59, seated in hollow extension 31 of plug 30, forces the arm 56 into this recess thus latching the valve in its first active position and in which a reduced supply of gas is supplied to the simmer burner as shown in Figure 5. Further anti-clockwise movement of the valve to its second position causes the lock plate to snap into recess 49, as shown in Figure 6, where it is held against reverse movement by the shoulder 54, except that when the steam is manually moved in an axial direction by pressing on handle 38 and the lock washer is thus moved out of recess 49, the washer will clear shoulder 54 and the valve movement can be reversed. In 4 this second activeposition a full supply of gas is received by the simmer burner. If the anticlockwise rotation of the valve is continued until arm 56 engages shoulder 55, the valve will be in position to deliver a full or maxium supply of gas to both burners. In order to rotate the valve to its fourth position, as shown in Figure 7, in which there is a reduced flow of gas to both main and simmer burners, it is necessary to move the stem axially and disengage the arm 56 from shoulder 55 to permit further anti-clockwise movement during which movement the arm 56 will ride over the inner face of car 45 until the arm is halted by snapping into a cam recess 60 formed in this ear, as shown in Figure 8. Further and final anti-clockwise movement is possible without the necessity of manually moving the stem in an axial direction, because the arm 56 will ride out of the cam recess 66 against the tension of spring 59. This movement continues until arm 56 is stopped by the shoulder 52, at which time the valve will have reached-its fifth and final position, as shown in Figure 9, and the intermediate or reduced flow of gas to both bumers will be cut down still further to a point just suflicient to maintain a flame for food warming purposes.

There are, as previously stated, five active positions, namely, low simmer only, high simmer only, high main and simmer, intermediate main and simmer and low simmerand main positions respectively. In the fifth .or final position the supply of gas is only just sufiicient to prevent the flame at both burners from going out whereas in the fourth or intermediate position suflicient gas is received at both burners to support low cooking flames. In the firstposition the casing outlet 29 to the main burner is closed by the plug and the cross slot 33 is out of register with main gas supply passage 6. However the slot 33 does register with angular by-passage 24, thus permitting a portion of the gas from main inlet passage 6 to fiow through straight by-pass passage 22 into pocket l6 and thence out through angular by-pass 24 to cross slot 33. From cross slot 33 this reduced volume of gas flows down through the longitudinal slot 34 in the plug to chamber and 24 is just sufiicient to supply a maximum fiow of gas for low simmer burner cooking.

In the second position of the valve the cross slot 33 is moved into register with the main supply passage 6 and a full volume of gas will flow directly into the cross slot and down through longitudinal slot 34 to chamber 3land thence to the simmer burner.

Further anti-clockwise rotation of the plug to its third position will cause the cross slot to register at opposite ends with the main gas supply passage 6 and with the transverse passage 29, thus permitting a full flow of gas to outlet passage 9 leading to the main burner. At the same time a portion of the gas flowing in through supply passage 6, will fiow through longitudinal passage 34 in the plug valve'3ll, to the chamber 3| and thence through passage 32 to outletpassage l0 leading to the simmer burner. A full supply of gas is thus simultaneously received by both burners.

In the fourth position of the valve plug the inlet end 35' of by-pass passage 35, registers with angular by-pass passage 23 and the cross slot 33 remains in communication with outlet passage 29. The reduced flow of gas to the main burner is thus through-by-pass passage 35, cross slot 33, outlets 29 and 9, and to the simmer burner the flow is through longitudinal slot 34 to chamber 3| and thence through passages 32 and I0. Valve plug by-pass passage 35 has sufllcient capacity to deliver the maximum amount of gas to support a low cooking flame at both burners, whereas casing by- pass'passages 22 and 24 are only of sufficient size to carry enough gas to support a maximum low cooking flame at the simmer burner only. In other words passage '35 in the plug is about double the capacity of simmer bypass passages 22 and 24.

Still further rotation of the valve plug to the fifth and final position will move the by-pass passage 35 in the plug out of register with supply passage and into communication with the casing by-pass passage 23. leading" from the pocket IT. The fiow of gas to both burners will now be drawn down or reduced to the minimum supply of gas which will support a flame, be-

cause the capacity of easing by-pass passages 2| and 23 isonly approximately one half that of plug by-pass 35. Consequently only half the burners is received by the burners in the final or fifth position. The fiow is from main supply passages 6 through straight by-pass 2| to pocket l1, thence through angular casing by-pass 23 to plug by-pass 35 and finally to'both burners as in the other positions.

Having thus described the invention, what I claim is: a I

1. 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, said casing having. a first outlet passage leading from said gas chamber to one burner, said casing having a second outlet from the plug receiving bore to the respective pockets, said plug having a cross slot opening into the bearing surface .of said plug receiving bore, a by-pass passage leading from said slot adjacent one end thereof and opening through the bearing surface of the plug, said by-pass in said plug having a substantially greater capacity than that of either of said restricted byto the second outlet passage being sealed by the plug, and such that in a second rotary position a full volume of gas may flow directly from the gas supply through said slots to said gas'chamber and to said first outlet passage, and such that in a third position of the plug a full volume of gas may fiow from the gas supply through the cross slot 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 slot by-pass passage in the plug to and through said cross slot to said second outlet passage, a portion of the gas delivered to said cross slot flowing'through said longitudinal slot to said gas chamber and to said first outlet passage, and such that in a fifth position of the plug a still further reduced volume of gas may flow from the gas supply passage to one of said pockets and thence through the 'by-pass in the plug to said cross slot and thence to said second outlet, a portion of the gas delivered to said cross slot flowing into the gas chamber through the longitudinal slot and thence to said first outlet passage, and means for rotating-the plug.

2. A gas range for a double burner comprising a casing with a plug'receiving bore having an end wall, a solid plug having rotatable bear-' ing in said bore and spaced from said end wall to form a gas chamber, 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, a main-gas'supply passage leading through the casing to said bore, a pair of hollow extensions on said casing forming pockets, ,each of said pockets having a restricted bypass passage of substantially equal capacity, leading from said main'gas supply passage, said casing having separate by-pass passages leading from the plug receiving bore to the respective pockets, said plug having connecting slots communicating with the said bore and gas chamber, a by-pa'ss leading from one of said slots and opening through the bearing surface of the plug, such that in one rotary position of the plug a reduced volume of gas may flow from the gas supply passage through one of said restricted by-passes into one of said pockets and thence through said slots to and through said gas cham ber to said first outlet passage, and such that in a second position a full volumeof gas may flow directly from the gas supply through said slots to said gas chamber and to said first outlet passage, and 'such in a third position of the plug a full volume of gas may flow from the gas supply through one of said slots to the second outlet passage and from said last mentioned slot to the gas chamber and thence to the first outlet passage, and such that in another position a reduced volume of, gas may fiow from the gas supply passage through the by-pass passage in the plug to one of said slots and thence to said second outlet passage, a portion of the gas delivered to said slot flowing to said gas' chamber and to said first outletpassage, and such that in another position oi the plug a still further reduced volume of gas may flow from the gas supply passage to the other of said pockets and thence through the by-pass in the plug to one of said slots and thence to said second outlet, a portion oi the gas delivered to said slot flowing into the gas chamber and thence to said first outlet passage, and means for rotating the plug.

3. A gasrange 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, said casing having a first outlet passage leading from said gas chamber I ing the plug. a

4. A gas range valve for a double burner comto one burner, said casing having a second outlet passage leading irom the plug receiving bore to the other burner, a main gas supply passage leading through the casing to said bore, a pair of hollow extensions on said casing forming pockets. each of said pockets having a restricted by-pass passage of substantially equal capacity, leading from said main gas supply passage, said casing having separate by-pass passages leading from the plug receiving bore to the respective pockets, said plug having connecting slots communicating with the said bore and gas chamber, a by-pass leading from one of said slots and opening through the bearing surface of the plug, such that in one rotary position of the plug a reduced volume of gas may fiow from the gas supply passage through one of said restricted by-passes' into one oi said pockets and thence through said slots to and through said gas chamber to said first outlet passage, and such that in another position of the plug a .iull volume of gas may flow from the gas supply through one of said slots to the second outlet passage and from said last mentioned slot to the gas chamber and thence to the first outlet passage, and such that in another position a reduced volume of gas may fiow from; the gas supply passage through the by-pass passage in the plug to one of said slots and thence to said second outlet passage, a portion of the gas delivered to said slot fiowing to said gas chamber and to said first outlet passage, and such that in another position of the plug a still further reduced volume of gas may fiow from the gas supply passage to the other of said pockets and thence through the bypass in the plug to one of said slots and thence to said second outlet, a portion of the gas delivered to said slot'fiowing into the gas chamber and thence to said first outlet passage, and means for rotatprising 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, said casing having a first outlet passage leading from said gas chamber to one burner, said casing having a second outletpassage leading from the plug receiving bore to the other burner, a main gas supply passage leading through the casing 'to said bore, a pair of hollow extensions on said casing forming pockets, each of said pockets having a restricted by-pass passage of substantially equal capacity, leading from said main gas supply passage, said casing having separate by-pass passages leading from the plug receiving bore to the respective pockets, said plug having a cross slot opening into the bearing surface of the said plug receiv-' ing bore, a by-pass passage leading from said slot adjacent one end thereof and opening through the bearing surface of the plug, said by-pass in said plug having substantially double the capacity of either of said restricted by-passes in said casing, a substantially longitudinally disposed slot in the plug conununicating at opposite ends with said transverse slot and said gas chamber, such that in one rotary position oi the plug a reduced volume of gas may flow from the gas supply passage through one of said restricted by-passes into one of said pockets and thence through the said cross slot and longitudinal slot to and through the gas chamber to said first outlet passage, the flow of gas to the second outlet passage being sealed by the plug, and such that in another position of the plug a full,volume of gas may flow from the gas supply through the cross slot 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 another position a reduced volume of gas may flow from the gas supply passage through the cross slot by-pass passage in the plug to and throughsaid cross slot to said second outlet passage, a portion-of the gas delivered to said cross slot flowing through said longitudinal slot to said gas chamber and to said first outlet passage, and such that in another position of the plug a still further reduced volume of gas may flow from the gas supply passage to the other of said pockets and thence through the by-pass in the plug to said cross slot and thence to said second outlet, a portion of the gas delivered to said cross slot flowing into the gas chamber through the longitudinal slot and thence to said first outlet passage, and means for rotating the plug.

5. A-gas range valve for a double burner comprising a casing with a plug receiver bore having an end wall, a plug having rotatable bearing in said bore and spaced from said end wall to form a gas chamber, 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, a main gas supply passage leading through the casing to said bore, a pair of hollow extensions on said casing forming pockets, each of said pockets having a restricted by-pass passage of substantially equal capacity, leading from said main gas supply passage, said casing having separate by-pass passages leading from the plug receiving bore to the respective pockets, said plug having a cross slot opening into the bearing surface of the said plug receiving bore, a by-pass passage leading from said slot adjacent one end thereof and opening through the bearing surface of the plug, said by-pass in said plug having substantially double the capacity of either of said restricted by-passes in said casing, a substantially longitudinally disposed slot in the plug communicating at opposite ends with said transverse slot and said gas chamber,

amaa a such that in one rotary position oi the plug a reduced volume of gas may flow from the gas supply passage through one of said restricted lay-passes into one of said pockets and thence through the said cross slot and longitudinal slot to and through the gas chamber to said first outlet passage, the flow of gas to the second outlet passage being sealed by the plug. and such that in another position of the plug a full volume of gas may flow from the gas supply through the cross slot to the second outlet passage and from the cross slot through the substantially longitudinaliy disposed slot to the gas chamber and through said cross slot to said second outlet pas- J saga-a portion of the gas delivered to said cross slot flowing through said longitudinal slot to said gas chamber and to said first outlet passage, and

such that in another position of the plug a still further reduced volume of gas may flow from the gas supply passage to both burners.

Rom'm'r E. 'scaomanam.

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