US1445984A - Gas range - Google Patents

Description

Feb. 20, 1923.

G. D. vvlLKlNsoN.

GAS RANGEL FILED AUG. 15. 1921.

3 SHEETS-SHEEIT l.

IIIIIIIIAVIIY EMIMW/l/l/M ill/14711111352.

Feb. 20, 1923. l ,445,984 G. D. WILKINSON.

GAS RANGE.

FILED AUG l5. l92l 3 SHEETS-SHEET 'l- Fg, 6, f'

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Feb.2o,192.3. Y 4 1,445,984. G. D. WILKINSON.

GAS RANGE. FILED AUGy l5. EJZl. 3 SHEETS-SHEET 3l Patente Feb. 20, 1923..-

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GEORGE D. WILKINSON, 0F OAK PARK, ILLINOIS, ASSIGNOR T0 CRIBBEN & SEXTON COMPANY, OF CHICAGO, ILLINOIS, A. CORPORATION OF ILLINOIS.

GAS RANGE.

Application led August 15, 1921.- Serial No. 492,232.

To aZZ whom t may concern.'

Be it knownthat l, GEORGE D. WinninsoN, a citizen of the United States, residmg at Oak Park, in the lcounty of Cook and State of Illinois, having invented certain new and useful Improvements in Grasl Ranges, do hereby decla-re that the following is a full, clear, and exact description of the same, reference being had to the accompanying drawings.

The invention relates to gas ranges used for cooking purposes, and its primary object is to provlde a construction comprising an oven burner having a plurality of independent sections anda single control valve or cock for both sections which may assume di'lferent positions to cut-off both the burner sections, to turn on all sections less than their full capacity as for broiling purposes, to turn on all sections to their full capacity to heat up the oven or maintain a maximum tire, and to turn on only a single section to its full orv less capacity when a low fire is desired for a slow oven. Also, in its preferred form the construction is Such that the valve may be reversed to accomplish the above reF sults when the burner is used in an oven lo cated at either the right or left side of the stove, so that the same valve may be used on either a right-hand or av left-hand oven stove. Other objects and advantages will be apparent from the disclosure.

The invention consists in the matters hereinafterdescribed and then pointed out in the appended claims.

In the accompanyin drawings which illustrate embodiments o the features of my invention and in which the same reference numerals indicate the same or corresponding parts, Fig. 1 is a viewpartly in plan and partly in section of a gas range containing my invention organized with a left-hand oven, parts being omitted or broken away for convenience of illustration; Figs. 2, 3, 4 and 5 are detail horizontal sectional views showing the valve plug in its four difierent positions in the organization of Fig. 1; Fig. G is a view similar to Fig. 1 organzied with a right-hand oven; Figs. 7, 8, 9 and 10 are detail horizontal sectional views showing the valve plug in its four different positions in the organization of Fig. Fig. 1l is a de's tail top plan view of the vave ash mounted for a left-hand oven' asin Fig. 1 g' Fig. 12 is a view showing the valve plug in side elevation and the shell in vertical section on the line 12-12 in Fig. 11 as mounted for a right-hand oven as in Fig. 6; Fig. 13 is a vertical sectional View lon theline 13-13 in Fig. 11 with the valve plug in elevation, and Figs. 14 and 15 are' horizontal sectional views on the lines 141-14 and 15--15 respectively in Fig. 13.

As shown in the drawings the reference numeral- 1 indicates the frame of the Stove, 2 the open-top section, and 3 the oven-section comprising the baking oven arranged at one side of the open-top and the broiling or toasting oven below the baking oven and at the side of the burner-box of the open-top,

-a sheet metal partition being removably arranged betweenthe ovens and above the oven gas-burner in the conventional manner, The gas-supply manifold 4 is arranged in front of the burner-box and is connected by suitable pipes to the usual series of burners 5 in the burner-box controlled by the usual valves 6 and having the usual air-mixers 7.

The oven burner is composed of, the sections 8 and 9, the. former being U-shape in horizontal outline or contour and the latter being a straight tube arranged between the parallel'arms of the section 8; the sections 8 and 9 are preferably cast-integral but are independently supplied with the fuel mixture through their respective supply pipes 10 and 11 having the usual airmixers 12. The burner is supported in the oven by its lugs 13 detachably mounted on brackets 14 on the oven walls, and is arrangedwith the sections extendingfrom front to rear of the oven as shown so that whether both sections are lighted or only the center section 9 is lighted a center-heat burner is provided for the oven. The supply pipes 10 and 11 are curved or bent laterally at the front ends of the burner sections to pass to one side of the burnersand through an opening in the lining and side wall 15 of the oven adj aceut the burnerbox and are then bent or curved forwardl at the inner side of the burner-box toy bring their air-mixers 12 at the front thereof opposite the inner end of the gasmanifold l and in line 'with the gas jets 15 and. 17 of their common gas valve or cock designated' generally by the numeral 1S.

The oven burners are made in rights and lefts, and by reference tov Figs. 1 and 6 it .will be clear that the burners with their supply pipes are arrangedVinfthexpven in corresponding relation with-frespectto the inner end of the gas-manifoldfandits valve or cock 18 in both right and leftv hand oven stoves. p

The shell 19 of the gas-cock is bored to form a seat for the tapered plug' 20 which is provided with an interior hollow way or chamber and is detachably held in the shell The shell 19 is preferably formed integral with a coupling-pipe 22 having an inlet port 23 establishing communication between the interiors of the pipe and shell; the coupling 22 is threaded at each end So that either end may be'dctachably mounted on the correspondingly threaded free end ot' the gas-manifold 41 according as the burner is used with either a right or left hand oven, -and a threaded closure cap 24 is provided to close the tree 0r unoccupied end of the coupling in either case. The shell is formed with opposite lateral extensions 25 and 26 having bores 27 and 28, respectively, above the plane of the port 23- and respectively establishing communication between the bore ot' the shell and the inwardly directed gas jets or nipples 16 and 17. The plug is provided with a lower pair of opposite inlet ports 29 and 30 in the horizontal plane of the port 23; when the valve is associated with a left-hand oven as in Figs. 1 and 11 the port 30 is in operative relation to the port 23, and when the valve is associated with a right-hand burner as in Figs. 6 and 12 the port 25) is in operative relation to the port 23. The plug is also provided with an upper pair or opposite outlet ports 31 and 32 disposed at a quarter turn from its inlet ports and in the horizontal plane of the passages 27 and 28. The inlet and outlet ports of the plug communicate with its interior hollow way or chamber and are elongated circumferentially of the plug; each of t-he inlet ports 29l and 30 is of sufficient width to register with the port 23 while the plug in its corresponding` right or left hand relation is in its three operative or gas-supplying positions; the outlet ports 31 and 32 are of sufficient width to keep both burner sections in communication with the plug-chamber when the plug is turned in its intermediate positions," andthe port 32 is sufliciently wider than port 31 to keep its associated burner section 9 in communication with the plug-chamberwhen the plug 1s 4further turned to the slow `tire position; The plug is provided at its upper end with a reversible handle 33 pivoted on its pin 34, and also with an opposite pair of point- -erS-Sand 36 in vertical alineinent respectively with the inlet ports 29 and 30, while the upper end of the shell is provided with a suitable dial or indicator 3T marked with four ypoints to indicate the positions of the operative pointer to cause the valve to assume the four positions above described,

and also carries opposite plug- stops 38 and 39.

1When a lett-hand oven is used the parts are assembled as shown in Figs. 1 and .11, with the coupling mounted on the gas-mani fold with the jets 16 and 17 in alinement with the supplypipes 11 and 10. respectively, and with the plug positioned with its pointer 25 at Off and with its inlet port 30 in operative relation with respect to the port 23 and with the outlet-port 32 in position to co-operatc with the lett-hand port 2T leading to the central section 9 when the valve is thrown to its Bake position. The valve-handle 33 is turned to the right-hand side of the stem'. Vhen the pointer 35 stands at Olii position the plug closes the port 23 as shown in Figs. 2 and 13. and no gas vHows to the oven burner; when the pointer is moved to Broil the port 30 partly registers with port 23, and the portsA 231 and 32 are in initial communication with the bores 2S and 27, respectively, as shown in Fig. 3, so that gas in reduced quantity for broiling flows to both sections ot the burner; when the pointer is turned to Light7 the ports 23 and 30 fully register and the ports 31 and 32 remain in communication with the bores 2S and f7 as shown in Fig. 4, so that the tull volume of gas flows to light both sections of the burner to 'full capacity to heat up the oven or maintain maximum heat; and when the pointeris turned to Bake the ports 23 and 3() still register and the elongated port 32 also registers with the bore 27` but the port 31 is out of register with the bore 28 as shown in Fig. 5, so that gas Hows to the burnerse'ction 9 but not to the section 8 to turn down the heat or provide a low or slow iire when desired, as, for example', when a slow tire is required inthe baking oven to prevent burning` the food.

`When a right-hand oven is used the parts are assembled as shown in Figs. 6 and 12;

the coupling 22 is now mounted at its opposite end on the gas-manifold with the jets 16 and 17 in alinement with the supplypipes 10 and 11, respectively, and the plug of the valve is positioned in the shell to bring its pointer 3G to the Uff position, and the valve-handle is turned to the right-'hand side as shown in these figures. ln the form ot valve shown this is done by merely mounting the coupling at its left end on the gas-manifold and closing its open end by the cap 24, and by removing the valve plug, rotating it on its axis bodily through a halfcircle, re-seating it in the shell, and throwing the handle 'to the right of its pivot 8a. This brings the other inlet port 29 of the plug into operative relatiton to the port 23, and the outlet ort 32 in position to co-operate with the right-hand port 28 leading to the central section 9 when the valve is thrown to its Bake position. `When the pointer stands at Off position'the plug closes the port 23 as shown in Figs. 7 and 12 and no gas flows to the burner; when the pointer is moved to Broil the port 29 partly registers with port 23, and the ports 31 and 32 are in initial communication with the bores 27 and 28, respectively, as shown in Fig. 8, so that gas in reduced quantity flows to both branches of the burner as for broiling purposes; when the pointer is turned to Light the ports 23 and 29 fully register, and the ports 31 and 32 remain in communication with bores 27 and 28, respectively, as shown in Fig. 9 for maximum flame purposes; and when the pointer is turned to Bake the ports 23 and 29 still register and the elongated port 32 also registers with the bore 28, but the port 3l is out of register with the bore 27 as shown in Fig. 10, so that gas flows to the section 9 but not to the section 8 to provide low heat for slow oven purposes, as, for example, when a slow fire is required in the baking oven to prevent burning the food. l v

In either arrangement of the valve the amount of gas flowing through the port 32 to provide the low fire may be varied by turning the valve plug more or less in this range toward the stop 395 it is obvious that as the port 32 registers more or less with the bore 27 in Fig. 5 or bore' 28 in Figvl() the amount of gas flowing to the central arm 9v of the burner will be regulated. The stop 2&9 is so located that it stops the rotation of the valve plug before the operator can turn it far enough through this range to extinguish the middle burner 9, as for example when it reaches the position of Figs. 5 and 10, so that the plug must be turned back to its Off position to extinguish the llame of the central arm 9 and the operator cannot accidentally extinguish it.

By my invention the two sections of the central-heat oven burner are controlled by a single valve; in prior devices using a single oven burner, such as the single loop or U-shape burner, it was necessary to provide its single tube with the large number of flame ports. usually from 120 to 150, required to adequately beat up tbe` oven. and when the burner was turned down to provide a low fire for slow heat purposes the llame was lowered in all its ports and the single line of reduced gas supply to so many ports provided a very weak flame which frequently was easily extinguished or snuiledout by the closing ol the oven door, especially as the turning down of the gas necessarily entailed a reduction of the secondary-air at the air-mixing valve which produced poor combustion, while in such oven burners having independently-controlled sec-tions separate valves were employed so that it was necessary for the operator to use care in rselecting the right valve for turning Oil' the main sect-ion when it was desired to use the other section for a. low fire, and also in turning on both valves when full-burner capacity or heat was desired. By my invention a single valve controls both sections of the center-heat oven burner, so that the 0perator is not required to exercise any care in choosing the right valve to get a low fire in the oven or in adjusting two valves to their corresponding full capacities to obtain the maximum fire uor heat when desired, while the low-fire flame is confined to the relatively fewer gas ports or apertures inthe section 9 so that the flame is Strong and not easily extinguished and burns no more -gas than did the old single burner when turned down to its low fire condititon. Also, the low-fire flame cannot be accidentally extinguished by the operator turning `the valve beyond its point of supply to the low-heat branch; this branch remains in conm'ulnication with the gas-supply when the plug reaches its limit of movement in the turning-on direction and can only be extinguished by the operator intentionally turning the plug back to its Oil position, while in all manipulations of the valve any supply of fas to the main section 8 is instantly ignited b-y the flame from thesection 9. The valve housing or body. being attachable to the gas-manifold of either a right or left oven' and having its free. end closed in either case, is uniform or standard for both forms of stoves, and by making the plug reversible the same valve may be used whether the oven is at one side or the other, or the plugs may be made in rights or lefts for right and left hand ovens respectively by having only a single inlet 29 or 30 as the case. may be.: in all these arrangements the parts in their assembled operative positions form a three-way valve for the purposes described. The burner composed of the loop-section or side branches 8 and the center branch 9 being disposed longitudinally `Ifrom front. to rear ol the oven provides a central-heat oven burner forboth branches or cut-oil' the side branches` and also regulate the size of the llame at the center branch to give more or less low heat by merely turning the valve stem to different positions in the same direction. 1When the plug'is made reversible its pointer may be arranged in any suitable manner to co-operate with the scale when the plug is in either its right or left position.

l claim:

l. In a gas range, an oven, a center-heat burner therein comprising independent sections, a gas-manifold, supply pipes extending from the burner sections and terminating in mixing-chambers in alinement with the manifold, and a single valve on the manifold constructed to cut-oft' both burner sections and to 'supply gas to both section simultaneously.

2. ln a. gas range, an oven, a. center-heat burner therein comprising independent sections, a gas-manifold, supply pipes extending from the burner sections and terminating in mixing-chambers in alinement with the manifold, and a single valve on the manifold constructed to cut-olf both burner sections and to supply gas to both sections simultaneously in differentquantities.

3. In a gas range, an oven, a center-heat burner therein comprising independent burner sections, a gas-manifold, supply pipes extending from the burner sections and terminating in mixing-chambers in alinementwith the manifold, and a single valve on the manifold constructed to cutoff both burner sections and to supply gas to both sections simultaneously in different quantities and to supply gas to only one of the sect-ions.

ft. ln a gas range, an oven, a burner therein comprising independent sections, a gasmanifold, supply pipes extending from the sections and terminating in mixing-chambers in alinement with the manifold, and a single valve mounted on the manifold and constructed to cut-off both sections and to supplyv gas to both sections in different quantities and to supplygas to only one of the sections in different quantities.

ln'a gas range, an open-top section, an oven, a. burner therein comprising independent sections arranged centrally of the depth of the oven, a gas-manifold terminating in front of the open-top. supply pipes extending from the burner sections and terminating in mixing-chambers in alinement with the manifold, a valve-shell mounted on the manifold and having gas-jets in alinement with the mixing chambers, and a threeway plug communicating with the manifold and constructed to cut-off both jets and to open either jet independently and both jets simultaneously.

.(3. ln a gas range.. an open-top section. an oven. a burner therein comprising independent sections, arranged ycentrally of the-'depth of the oven, a `gas-manifold terminating in front of the kopen-top, supply pipes extending from the burner-sections vr'and terminating in mixing-chambers in aiinement with the manifold, a valve-shell mounted on the Leases@ oven at one side thereof, an oven burner, a

gas-manifold in front of the open-toppa burner-supply pipe terminating in front of the open-top connections between the inanifold and supply pipe including a valve and a reversible coupling pipe constructed to interchangeably connect to the manifold at either side of the open-top and having a seat for the valve and a port leading to the valve-seat, and a closure for the free end of the pipe.

8. In a gas range, an open-top section, an oven at one side thereof, independent burners in the oven, a gas-manifold in front of :the open-top, burner-supplypipes terminating in front of the open-top, connections between the manifold and supply pipes includinga reversible three-way valve and a reversible coupling pipe constructed to interchangeably engage the manifold at either side of the open-top and having a seat for the valve and independent gas-jets for the supply pipes and a port leading to the valveseat, and a.-closure for the free end of the pipe.

9. ln a gas range, an open-top section, an oven at one side thereof having independent burner-sections, a gas-manifold in front of the open-top, burner-supply pipes terminating in front of the open-top, connections between the manifold and supply pipes including a reversible three-way valve and a reversible coupling pipe constructed to intel'- changeabliv connect at its ends to` the manifold ateither sideof the open-top and having a seat for the valve and independent gas-jets for the supply pipes and a port leading to the valve-seat, a reversible pointer on Vthe valve, and a closure for the free end of the pipe.

10. In a gas range, an oven, a gas-manifold, an oven-burner comprising connected side tubes and an independent center tube. independent supply pipes extending from the tubes and terminating in mixing-chambers adjacent the manifold, a valve-shell on the manifold having jets in alinement with the mixing-chambers and provided with an inlet port communicating with the manifold and with passages leading to the jets, and a valve plug having an elongated inlet port to register with the shell-port and outlet ports to register with the jet-passages.

11. ln a gas range, an oven. a gas manifold. an oven-burner comprising connected side tubes and an independent center tube,

independent supply pipes extending from the tubes and terminating in mining-chambers adjacent the manifold, a valve-body comprising a coupling constructed, to connect to the manifold at either side of the range and a shell having jets in alinement with the mixing-chambers and provided with any inlet port communicating With the coupling and With passages leading to the jets, and a reversible valve plug having an elongated inlet port to register with the shell inlet and outlet ports to register with the jet-passages.

12. In a as range, an open-top, an oven, a gas maniold terminating in front of the open-top, an oven-burner comprisingindependent sections, independent gas supply pipes extending from the burner-sections and terminating in mixing-chambers adjacent the manifold, a valve-body comprising a coupling constructed to engage the manifold at either side of the opentop and a shell having jets in alinement with the mixing-chambers and provided With an inlet port communicating with the coupling and with passages leading to the jets, and a reversible valve plug having an elongated inlet port to register With the shell port and outlet ports to 'register with jet-passages.

13. In a gas range, an oven, independent burner sections in the oven, independent supply pipes extending from the burner sections and terminating in mixing-chambers at one side of the oven front, a gas-manifold having its free end adjacent the chambers, a valve having a coupling constructed to engage the free end of the manifold at either side of the loven front and having jets in alinement with the mixing chambers, and a reversible three-way plug in the valvebody having opposite elongated inlet ports and outlet ports of different lengths.

14. In a gas range, an oven, independent burner sections in the oven, independent supply pipes extending from the burner sections` and terminating in mixing-chambers at. one side of the oven front, a gas-manifold having its free end adjacent the chambers, a valve having a coupling constructed t0 engage the free end of the manifold at either side of the oven front and having jets in alinement with the mixing chambers, a dial on the valve, a reversible three-Way plug in the valve-body having opposite elongated inlet ports and outlet ports of different areas, and opposite pointer on the plug respectivelyl associated with its inlet ports and co-operating with the dial when the plug is reversed.

15. In a gas range,van oven, independent burner sections in the oven, independent sup-ply pipes extending from the burner sections-and terminating in mixing-chambers at one side of the oven front, a gas-manifold having its free end adjacent the chambers, and a valve having a coupling constructed to engage the free end of the manifold at either side of the oven front and having jets in alinement with the mixing chambers, va dial on the valve, a reversible lthree-Way plug in the valve-body having opposite elongated inlet ports and outlet ports of different lengths, and opposite pointers on the plug respectively associated with its inlet ports, and stops for the plug.

16. In a gas range, an open-top section, an oven at one side thereof, independent burners in the oven, a gas-manifold terminating in front ofthe open-top connections between the manifold. and oven-burners including a three-Way valve, a valve-coupling constructed to engage the end of the manifold at either side of the open-top, a dial, and a pointer on the plug co-operating with the dial.

17. In a gas range, an oven. independent burner sections in the oven, independent supply pipes extending from the burner sections' and terminating in mixing-chambers at one side of the oven front, a gas-manifold having its free endadjacent the chambers, a valve having a coupling constructed to engage the free end ofthe manifold at either side of the oven front and having jets in alinement with the mixing chambers, a three-Way plug in the valve-body having opposite elongated inlet ports and outlet ports yof different' lengths, a dial, and a pointer on the plug c-o-operating with the dial.

In testimony whereof I ailix my signature.

GEORGE D. WiLxiNsoN.

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