US2654359A - Gas cookstove with combined top pilot and simmer burner - Google Patents

Description

Oct. 6, 1953 REEVES 2,654,359

GAS COOKSTOVE WITH COMBINED TOP PILOT AND SIMMER BURNER Filed May 4, 1948 Patented st, 6, l$53 GAS COOKSTOVE WITH COMBINED TOP PILOT AND SIMMER BURNER Herbert M. Reeves, Kankakee; Ill.,' assignor to Florence Stove Company, Gardner, Mass., a corporation of Massachusetts Application May 4, 1948, Serial No. 25,013

The invention pertains to gas cook stoves and has particular reference to a cooking top of the type having a plurality of burners arranged in a convenient group, usually rectangular in form, with a lighting systemincludin a pilot burner disposed centrally of the group. In conventional ranges the cooking top comprises a sheet metal top plate which is imper'forate except for the openings for the top burners and for the pilot burner. As is Well known, the latter burns continuously and give-s oii a substantial amount of heat which is wasted through dissipation to the top plate and to the atmosphere above the plate.

The primary object of the present invention is to provide for the eiiective utilization of the heat of the pilot burner so as to connect it to a simmer burner, through the provision of an auxiliary utensil-supporting grate overlying the pilot burner and by especially constructing the cooking top so as to minimize dissipation oi heat thereto.

A further object is to provide a cooking top structure having main utensil-supporting grates overlying the top burners and an auxiliary grate overlying the pilot or simmer burner, in an arrangement such that the main grates cooperate with the auxiliary grate in supporting a utensil above the simmer burner. V

The objects of the invention thus generally stated together with other and ancillary advantages are attained by the construction and arrangement shown by way of illustration in the accompanying drawing in which:

Figure 1 is a fragmentary perspective View of the top section of a gas cook stove embodying my invention.

Fig. 2 is a fragmentary sectional view on an enlarged scale taken approximately in the plane of line 2-2 of Fig. 1. V

Fig. 3 is a fragmentary plan view of the central portion of the cooking top showing the special construction of the top plate whereby the conduction of heat to the top plate is minimized, the auxiliary utensil-supporting grate being shown in broken lines.

The improved cooking top illustrated comprises a generally flat top plate 'i of sheet steel having flat peripheral edge portions adjoined to the top edges of the front and side panels 5 and s of a cookstove. Four burner openings 8 are formed in the plate in a generally rectangular group each opening having a top burner 9 disposed centrally thereof. The utensil-supporting grates H] are preferably in the form of circular disks ll of a diameter somewhat smaller than the openings 8, and each is provided with a plurality of radial arms l2 (herein three) resting upon the top plate externally of the holes 8 and preferably interengaging with the plate through the medium 5 Claims. (01. 126-39) 2 of small slots receiving depending portions at the outer ends of thearms. It will be observed from Fig. 1 that certain of the arms 12 of th four grates it project toward and in alinement with each other, and that the tops of the grates are disposed in a common plane in a vertically offse relation to the top plate i.

The cooking top further comprises a lighting system includin 'the usual pilot burner it and lighter tubes [4 extending from the several cook ing top burners to a central point'adjacent the pilot burner. As shown, the pilot burner has an inner frusto-conical cap or hood 55 disposed so as to encircle the base oithe flame, the top of the hood being open for the passage of the flame into the space between the lighter tubes. An outer housing It encloses the pilot burner and serves to support the inner end of the tubes, this housingbeing suitably secured to the underside of the top plate. a

The top plate has a central hole it directly overlying the pilot burner, substantially in the conventional mannerll However, in the present instance the holelTis formed centrally of the upper portion of a shallow dome formed in the top plate and generally designated 58. Overlying the dome and 'in closely spaced relation to the hole I! is an auxiliary utensil-supportin grate I9 made generally'similar to the grates iii but of much smaller size. It comprises a circular disk 20 having a plurality of radial supporting arms 2| with depending outer ends resting upon the cooking top plate externally of the dome It. The arms 2| are preferably provided with lugs for entry into positioning slots 22 in the top plate (Fig. 3). In the present instance, the shallow dome i8 is pressed upwardly out of the top plate so as to provide an annular sloping'wall portion 23 terminating at its upper edge in a flat annulus 2i, and a smaller sloping wall portion 25 terminating in-a fiat top portion 26. which contain the hole l1; centrally of the dome, and is disposed in closely spaced relation to the auxiliary grate it.

To minimize the conduction of heat from the pilot flame to the cooking topand to permit of the application of such heat to a utensil supported on the grate 59, the cooking top is perforated in the region encircling the hole I'i. vAs herein shown, the annulus of the dome I8 is formed'wi tlran' annular series of holes 27 in a substantial'contiguous series. These holes underlie the peripheral portion of the grate i9 and permit the passage of hot gas upwardly against the peripheral portionof the grate. Of course the major portion or" the gases pass directly upward through'the hole I! for escape outwardly between'grate and the top 26 of the dome. The holes 27, being spaced a somewhat greater distance from the grate,,provide for the relatively utensil, the latter usually being of a diameter 7 substantially in excess of that of the grate.

Reference has been made aboye ,the -fact that certain of the arms of the-g jt stw pri iject toward and are alined with eacHother." 'In this connection, it will be observedfthat the auxiliary grate I9 is disposed in the' same plane as the grates l and that the arms 2| thereofcoact With the arms I2 of the grates i0 so asto provide a firm support for large'uterisil's'placed centrally over the grate l9.

Experience has shown that by the construction p ed th h a ef the pi ot .ihurnenpwhieh i normally wasted through dissipation to ,the atm s her an the co kin top, s efi etua y utilized- Ihusit has been ound tha t s p ssibl t a ntai o Quartet Wa erata temper ture f 50 a d h sat n extra cost. .sim lar y it has been found that ,two quarts ,of water pl e upon t e au liary g ate overni ht l a be r e t a em e at re of 1 c a m as m i ven on:

a a @0 store ha in a cook n top plate w t a plurali y of burner openin s, a burner a h ope in ute sil-supportin grates ove yi the burner openin s, a lighter ystem for said top burners includin a pilot burner, said top plate haying a hole directly overlying the pilot burner, and an auxiliary utensil support having a 'solidsection in the body thereof at least as large as said hole, said support being removably supported on the top plate above said hole and disposed substantially in the plane'of the top burner rateswith said solid section located directly over said hole to afford protection for said pilot, said cooking top plate being perforated around said'pilot burner hole to permit the passage'of hot gases against the peripheral portion of the auxiliary grate and serving to 'rninimiz'ethe dissipation of heat from the pilot burner to the top plate.

' 2. Agas cook 'stove having a generally fiat cooking top plate with flat peripheral edge portions 'adjoined to the'top edges of the front and side panels of the stove, 'a plurality oi burner openings formedin'said plate, burners in said openings, utensil-supportinggrates overlying said openings and supported on said plate'fa lighter systeni for said burners including a' pilot burner disposed beneath the top "plate," and an auxiliary utensil-supporting grate overlyingthe pilot-burner and supported on'said plate, said top plate'having'a raised centrarportion under: lying the auxiliary grate so ast'o form a shallow dome having an-upper portion disposed con: tiguous-to said auxiliary grate; andsa'id dome being apertured centrally thereof and above said pilot burnerand also having an annular series of perforations underlying the peripheral portion of said auxiliary grate.

3. A gas cook stove having a cooking top plate with a plurality of burnerbpenings, burners in' said openings, utensil-supporting grates overly ingsaid openings and alighter system for said burners including a pilot burner disposed be-' heath the top plate, said top plate having a raised portion overlying said pilot burner andforrni'nga shallow dome having a hole in its upper central portion directly above the pilot burner, and a utensil-supporting grate removably seated 'on the top plate above and in closely spaced relation to'the dome; said last mentioned.

grate having a solid portion at least as large as 4 saidchole and dis posed di-regtly, oyegsaid; hole to protectisai'd pilo'teburner, said dome having an annular portion disposed in a plane below said hole and apertured for the passage of hot gases upwardly against the peripheral portion of the (a x lia e' t lf'A gas" cook stove having a top plate with a plurality of burner openings arranged in a ,generallyirectangiilar group, a top burner for each "opening' an'd utensil-supporting grates qyerlying each opening and comprising disks havingradiafarrns supporting said disks above and in Ive'rtically oifset relation to the top plate, a lighter system for said burners including a pilot burne i se subs an all h nt ll o a d grou b ne o en s said top late having a hole directly above the pilot burner, n n a x a 'u ns eu e i e lying the i tbume 1 eendeeme i I i avi a m r in u the t pznlat endear: s t n he auxiliary grate in t plane o th p hu ne s ete -Fain of th arms o 1 51 62 91?" burn r ra e c p in W tht e arm e auxili ry r te t s p rt a la size Men a nd s o plate b n Perf rat d the easrn r oun sa d 9. 5 bu ner ole- A as 00011 Ste hayin en ral 11a? plate defining the top surface of the sto-ye, said ate bei e e wi h pl r ity 9? m b ne Pre is a an s e s eer a st n u ner i os d in a h of sa d eee has en n uten l-sup or in s a n rates ere is re t ve bu ner nin s, sai in a es ha n arms th e??? ei tenqine r o tw d th e r m is ener ll pa al el r tion to said plate, the outer ends of said being t rne ewnwa dly t ie er eeaee it a d We plat and eep-Q t e rates i Vera: a l a ed e a on to he F r me e and to ra n he ate aeeiris la era mov me it a i ht S s m sa d bur ers lud n a lot rne diseased belewsaihfiaie an spaced relation to the burner openings, id ee a e d i a hole ire tl abo e th ot bu n amen eusilier ensilu reme. n ra e" e m i ne e' e d eeaer lv fla 5 a in ra al exiendine' a ms wit their an portions turned dewnw rdl w inte eneaee with. the te ate t s ort as (l st di e t 9 e a P19 bu ne 29: and tdr et e jn it a nst lateral movement, the turned down end portions f a d armsbe ne tiim neie es o. $EEHEQIT' h disk an arm ef he. eei l r state in, come HERBERT aanvas,

39 9$ ciit P2 9: ,1 9 2 3 eeteat UNITED sTa'rE-s mann rs Number Na e, Date.

1,322,349 Ruppel" Iov."1;8,"1-9,19 1,653,438 Brurnbau 'M'arfzo; i928 1,688,487 Dster Oct. 23 1 9-28 1,931,511 Toell'e 0et124', 1933" 1,957,442 Briimbaugh May 8; 1934 1 ,959,657 Chambers"- May 22, 1934: 988,394 OfDowd Jan; 15, 1935. 1,996,397 Bakeri Apr. 2, 1935:. 2,043,382 Leonard June 9; 1936, 2,087,720 Guenther, July 20, 1937-. 2,138,925 Kahn Dec. 6, 1938

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