claim: @l Agasstoveecimprisingacookingtop,aburner therefor and a front wall for a manifold housI ing beionv the cobking top I'laving a handle openin r)O ing tilerein, ar@d ar. air ' let @ odening below and an outlet opening above the handle opening, a manifold bene-@th the cooking t6p and disposed between the air inlet and outlet op--nings, a crosspipe reaching rear,@vardly from @ one end of the ,55 manifold for supplying gas -to the latter, tlie crosspipe extending in prbximity with the burner, a heat deflector el'ielosing said crbsspipe to miniiiiize transfer of heat from the burner to the pipe, a bafqe substantially parallel,with the manifold 60 aiid disposed between it and the @bu@ner @to prei7ent heat transfer from the burner to the manifcdd, a cock@communicatinp@, with the manifold and arranged to discharge gas to the burner, an'a a handle disposed outside t@@le housing having an 65 operaltirg connection through the ha-tidle opening with the cock for openiiag and closing th6 same. 2. A gas stove as se'L, fort3i in claim lwherein the baffte is so conlo-@,rn-ed and r6lated to ihe air iriiet and outlet openings @vhereby to direct infor ei io coraing air toward the outlet oi)ening rcula ti -.mantf old, said ba,ffle serving to is ,on about the 0- late @tlie buri-iers fro-@n the man4@f old to such an exteni as t6 cut dovin the flow of secondary air thereto 'irom the air inlet opening, the stove i'5 b.-ing provided with auxiliary air irlet openings th adiaV,.on. Such heat as ulati b6hind the baffi,e for deliv6ry bf additional secondary air to the burners. 3. A gas stov'e@ a s6t fbrtli in claiiii 1 wherein the @heat deflect6r -or the ciosspipe rests oii the top of sEtild pipe, A_nd @vhereiii the baffle has, th@ onO5 end thereof f 6rmed @ to fit over said deflector whereby the baf@lie h6lds the hc-at deflector in place on the c ss-,oi e aild the c@osspipe is used to supTO @p port the@ba@te 4. A gas stove as @-et forth in claim I wherein 10 the baf'ile is foriiied from sheet ryietal bent to approximatel@ V-@haped cross-section wh6r 0 pr i ing ov.de diverg, @forwai!dly reaching front aiid rear walls ha,,7ing an air iiisijlating chamber therebetween, ti-ie rear i b wal eing inclined@ in a 15 predeterinined relat-ioii to the@ burr-ler@ for defleetion of heat thE@,:e@i,offi, and the front wall being or@f or e ' d in ed@with re! t@o c m dan cii-,i -a i ntothemanif d ai @ et and, 6 o direct ol an r ini utle'L, openings t incoriir@g aii@ tonvard the outlet opening for eirc oT-i about the man-' old. thr6ugh t,-ie hous4ng 28 around the manifold 171, rect ine6i-ning air toward 'Cae' outlet @6p6ning for if 5@ A gas s@cove as seb forl@-h in claim I wlie@ein the baffle is formed from ; ,.ieet metai betit to a -cross-secb, -,@7hereby to ppi,oximately V shaped on 7 pro@ide divergiiig forwardly reaching front and rear walls having an air, iiisulating chamber therebetween, the rear wall bei-,ig inclined i I n a predetermined relation to the burner for defl t'o o' heat thereee i ii i ironi, and the front wall beirig coiiformed and iiiclixied @xiith relation to the r@,ianif old and air inl( @t a:nd outlet openin--s to di. eirel-ilation about the manifold, and wherein the heat deflecto.r rest8 on top of the drosspipe, and "5 the adjacent end of @the baffle is formed to, fit over said deflector wher eby to hold the def-lector in place on the crosspipe and at the same time support the baffle on said,pipe. 6. A gas stove comprisli-ig a cooking t I op, a front wall for a iiialu'@@old,hous,.ng immediately below 40 the cooking top,@ the 6,,oking top having a downwardly proilectiiig iioit @@lan,@e resting on a s'Loulder on the upper edge of the front wall, the f@ont wal,l haviiig a I handle opening, the upper portion of said housing having an air outlet open_ 45 inp., thereiii, and the !Gvier porti.on of said housing having aii air i-Lilet openiiig, a burner for tiae Gking top, a -a's sup co . ply manifold in said housing in a predeteririned rela@'ion to the air outlet opening a cock for del4ver-irig gas fro-rn tiie I 50 manifold to the burner hav-lng an operatiiig ste I m reaching toward th6 handle opeiiing, a handle outside the @housing having Pn o-oerating connect'on througli said open-Ing v4th said st I em, and a 55 baffle disposed substantialiy pa-railel with the manifold between the latter and the burner to -hield th-- manifold frcm t]-ie 1-iep-t of ti-ie burner, aid baffle being formed substantially V-shaped ' in crosssection so as to pi-ovide forwardly diverg60 ing front and rear Nva@ils with an insulating enamber therebetwee ii, the fi-,onf, wall reaching over the ma,iiifold and above the air outlet opening, ap-d forr-ried to direct. incoming air tgwazd said outlet, c.,,)eniiig for fold, aii-d tle --renr ,,Ta-li be' - iiicl'?-ied uliwardly adjacent the, burper frr d-flecting heat therefrc m,@ t-.he frolit end of e@ n'tered in the joint betvreen the ec-ol@,ii , top a,,id front p-,oort of the b@affle@ 70 wall for su Stb 7. A gas Ive including in combination, a combustion chai,.iber, heatiilg blirne@,s arranged therein@ and a closure 1)late constituting the front wall 6f said chamber, salid plate being formed with p6rts in its lowe.,e part through which Dorts 75 about the man'- 6,5 4 2,007,446 air for cornbus@@ion is entrained, and said plate er compartment, burners therein, a front wall being formed also with ports in its upper part through which excess air is vented. ,8. In a gas stove having a cooking top burner compartment, burners therein, a front wall for said compartment and a gas supply manifold and cocks communicating therewith for delivery of gas to the burners, said manifold and cocks being disposed in said compartment behind the front I 0 wall, said wall being formed with lower and upper openings for inlet and outlet of air respectively, whereby to supply air for combustion to the burners and surplus air for circulation past the manifold and cocks for cooling the same. 15 9. In a gas stove having a cooking top burner compartment, burners therein, a front wall for said compartment and a gas supply manifold and cocks communicating therewith for delivery of gas to the burners, said manifold and cocks 20 being disposed in said compartment behind the front wall, said wall being formed with lower and upper opewngs for inlet and outlet of air respeciively, whereby to supply air for egmbustion to the burneis and surplus air for circulation past the manifold and cocks for cooling the same, the stove including baffle means disposed in the burner coinpartment between the burners and the manifold and cocks to shield the latter from "the heat of the burners, said baffle means being ,,(i so disposed whereby excess air taken in is directed toward the upper outlet. 10. In a gas stove having a cooking top burnfor said compartment and a gas supply manifold and cocks communicating therewith for delivery of gas to the burners, said manifold and cocks being disposed in said compartment behind the 5 front wall, said wall being formed with lower and upper openings for inlet and outlet of a@ir respectively, whereby to supply air for combustion to the burners and surplus air for circulation past the manifold and cocks for cooling the same, the 10 stove including a baffle of V-shaped cross-section with the crotch portion of the v lowermost, arranged betw6en the burners and the manifold and cocks so that the inner waR deflects heat of the burners away from the manifold and cocks, 15 and the outer wall deflects excess air toward the upper outlet, the inner and outer walls being spaced so as to minimize heat transfer from the former to the latter. 11. In a gas stove comprising a cooking top, 20 a gas supply manifold therebeneath, gas cocks coi-,imunicating therewith for delivery of gas to burners disposed beneath the cooking top, and a baffie of V-shaped cross-section disposed with the crotcli of tl,.e v lowermost between the burners 25 and the manifold so that the inner wall deflects heat of the burners away from the manifold, and 'uhe outer wall is disposed adjacent the manifold ar-ld spaced from the inner wall for niinimuva heat inn transfer from the er wall to the outer waH. 3( PETER I. HOLIMAN.
Patented July 9, 1935 2 0 0 7 , 4 4 6 UNITED STATES: PATENT OFFICE 21007,446 CL16SED TOR@STOVE @Peter 1.@ tloilmiin, Rockford, 'amignor@:@t6 -Geo. D iraper Corporatl in, ford, 1B., a@ corporation of IlUnois A@plication April 20,@@ 1931, Se'n'al 14o. 531 281 IlClaims, (Cl,@126-39), Thi,@ invention reigties to gas raiiges and li@o,re PatticulEl,,ri@-closia.d too stove8@ an'd has sp.eci6,1 re,ference t6 concealment bf thd mgriifold on stoves 6f that type. ,5 The principal object of my itive4iion is to @ro.@ vide a StOV6 6f th@i kind meiitioned with @, housing f or the c ealment of the manifold an @d c6clcs, so constructed ivith air iiilet and 6utlet oper@ngs belo,w and ab6ve the bocks'and raar 'fold to iinisiuire u lo goocl eirewation of Wr @tbxough the housing to keel-p these pa@ts.from getting too hot, whereby to prev6rit@ drying out of lubricant in the 6ocks and insure, easy opbration tli6reof at all times. Anothe-r object consi@ts@ iii the pr6vision, of a 15 baffle vjithin the housing to promote air -.irGulation the@etliro@gh, the said baffle@ being turther so constructed as to deflect heat, 6f the bumers away from the cocks and maiiifbld and more or less completely insulate the corribustion clkamber 20 fr'om the afo@es@,id @housing. Still @no,ther object is. io pro.@dde a he@t d@flector f6r the ci6,@@. pip@e that deliver.5 ga@ to the. nianifold, to n3inimize the heating of soid pipe, said deflector being suitabl@ foi@med of sheet metal 2 F@ and arranged to be placed o@er th6 side of t crol% pip,e against t]@e@buiner box,end wall to enclose the same isoi;@ted fr6xn @the cohi@i on chamber Other objects of -the invenrion will -appeax 'm the course of the following detailed desrription, in@ which reference is ma-de to the accon-ipanying d.ra,wings, whereinFigure 1 is a front view of the cooking top portion of a gas range embodyiiig my iriventioia; 3.-) ng. 2 is a, longitudii@al ve@tic@l SE@6tiOn Of Mg..@ ure 1 Fig,,3 is an enlargement of the frout,portion of Fig. @, and Fig. 4 is a sectional detail on the, lizie. 4-4 of ,io @Fig, 3. The: same reference numerals@ are @@phea t 0 correspondin-g -parts through6ut the views. Ti@e inventioii 'is b6iein illustrated @ad 4 scribed as ernbadied in a cl6sed top atove. @.toves of that type@ present a much @ moi-e difficult problem in a@ai 'old than op4@h the c6ncealraeiit 6f th6 m 1. top! st@oves@ becau '@ @h6 c6ncea.Iment oi th6 I se ,fold ineans confinement in th@ h'e@t of the b@rn'ers The heat is transmitted from th6 m2@nifold ,50 to the:@cpfks by cond.uc@ion and causes the drying out of @the lubTiCarit therein so that the@cocks elti-ier st@ick or turn with great difficulty@ @ Wbile the invetition is par: ti@ularly - ado@pted for use with closed top stov I es becau@e of tiie - 6ffici6at v@ay it 55 'ords ifold ai@d@c of cooling @the maii ocks, tliough aft concealecl, it. shbuld be understood that the invention is @ii@pli abl@ to open. top stoves as well. c The 'cl6sed top, sta,@e illustrated is generally sirdila@'to that diselo@ed in the copending applicatidn of Stanley H.. Hobson, Serial No 193,276, 5 filed May 21,.1927, which has matured into Pat. 14o.@ .'L,878,i43, Se@t. 20 1932. The cooking top, iiidicated generally by the reference numeral 5, has the usual oveii section 6 at one side thereof aiid @ b. all 7 behind the same. 8 10 Lek splEtE;h6i @w indi@ate s th@e@ @)u@rner box back, and 9 the burner bOx. eiid w@all. A (lra,@er@ I 0, commonly referred to as a,.utililty drawer is slidably mounted in the btixllqr box under a suitable drip pan I 1. The cookin@ top, 4s @,t@ied befor6, is of the closed type 15 and has top lilotes I i set in tho openings therein :@,o as to prpsqzit a' sliloo'ch flat top surface on which to@PIace. the cooking utensils, and these top plates in turn. h@,,ve openings' closed by removable lids, thi@ iiumbek'of openings depending upon the num- 20 ber'of bi@xiie 'ernployed. 0 C6 ne of the front okirig top burni3rs is indicateci at 13, and one of the i@ar butia@is at 14, it@ being customary to provide tWo in b, f roxit set ai@@d two in r a rear set, as 'IS we.11 krlo*n, The manifolds for the rear burners 25 14 niay ne:oi 9,ny ordili@try coii ntional form, but ds @ 15 for ve the manifol e f r nt burners 13 are el6ngate,d t6 tb@- des' IV ired length and g' en a rev6rse bi6ixd, @s indicated at 16 to communicate with the buriiers @ @l 3 from 'the r'ear, thus allowing 30 the a6sir@ed length of travel of the gas and air for g(>od'niixtui:e despit@ i@e ciose proximity of the buri@@@ ii. with t@e ga s sup ply manifold 17 due to the,location oi the latter beneath and within t'lie cookiiig top@ for concealment. The gas sup- 35 ply m@nifold iii th6 Hobson application above referred td.walq; n6t co,acealed, but dispbsed out in froiat, of thO cookii@g top, and that accounts for the. @@f ut@ thlat in that caso it was possible to use front burners of ordiiiaty standard form, A bot40 t @@(o @5@' 0 OM @@ -m unted under the cooking top 5 between the top @late 12, and the burners, and r t@u@,prqvide's a confined combustion chambe 19 ab6ve the sarne ancl a secondary air chalnber 20 l@elo,%@ the s@ane@; above t]@6, drip pan I 1. The bot45 tom plate serves as a support f the burners in t@@ ra@nner sh@w@. The bottom plate@ in accordance with the Hbbson application, has secondary a.i@ openings@ Z I conf ormiiig t6 the arrangement of the ilam6 ports of the burners and defined by up- 50 es 22. The stad(ling flang combusti6n chamber (O @omn@unicates at the rear of the cqoking top witli @ iiiie @outlet 23 for conducting the products Of' @oi@kb4stiori: ii.-om the stove So much for 9, oi f55 a general, understanclin the construction o 2 - 2,007,446 the closed top stove in which I have embodied my inventioii. This construction, with the exception of the specially formed manifolds 15 for the front I-,urners 13, is covered in the Hobson application mentioned above. The front 24 of the burner box is preferably cast in one piece reaching from the cooking top 5 down to tl-ie base band 25, and is suitably gupported at its lowe-c end on the base band and provides a sup10 port at its upper end for the cooking top. The sa@d burner box front 24 Is provided with an op@nirg 21,i in the lower portion thereof for the reception of "L-Ihe drawer IO bezieath a cross-bar 2 7 which is cast as an integral part of the ftont. The 15 upper port-ion of the burner box fron is cast to provide a horizontal outwardly projecting housing 23. 'I@lie housing 28 is formed by a-sulbstan.tially vertical front wall 29 and a downwardly iiielined for-,vardly projecting top wall 30. The 20 bottom of t,,@e hotising is open as appears at 31 all the way from the lower edge of the front wall 28 to th,e top of the crbssbar 27. Now,- lugs 32 are su@@ 'tably cast integral with the inside of the front wall 21.1 formed at their inner ends for reception 2@5 of the man-ifold 17, and clips 3.3, fastened a's by means of screws 34 to other lug@ 35 cast integral with the inside of the frorit wiill t9 below the Iiigs 32, se.@ve to clamp the manifold 17 in place. The manifold when so clamped is disposed substan39 tially centrally in the housing 28 at the level of approxirnately the middle of the front wall 29, above the opening 31 and below anbth@r op@ning 30 which reaches horizontally acr(ss i@e upper t portion of the front wall 29 substan ially the full length of the housing. The bottom of the openIng 36 is def-Ined by an inwardly pr6jpcting cur,ved f-lahge 37, the purpose of which is mainly to give a-pleasing appearance, but which serves to better conceal the manifold 17 from view through the ope,-iirg 36. The top of the opening does not.require a sim.1gr provision, but shoulders, 38 are p@ovic.led above the opening for a purpose which will soon appear, as a result of the extension up.@ wardly of the flange 37 at the opposite ends of 45 the opening 36, a's appears at 39. Specially degned co ks 40 have upwardly projecting threaded shanks 41 threading into holes provided In the bottom of the manij'old 17 so as, to depend from the manifold and provide fo I r a proper, elevation ,)6 of the rearwardly proje--ting discharge nipples 42 .wit-li respect t6 the shutters, 43 of the bUm6r 'folds. The cocks 40 have forwardly @projo6ti-ng stems 44 terminating just b.ehind,the front @vall 29 of the housing 28 but approximatel ce@ ,y ntrally d-isposed with respect to o@enings 45 provided in the lower portion of said wall, prefer.ibly as notches In the lower edge thereof. Handles 45 liave their shanks 47 detachably @ecuteld tb the stenis 44 of the cocks 40 ks by means of 60 set screws 48, the said shanks being entered fr,eely throu,7h the openings 45 for - operation of the cocl,,s by means of the handles f I rom outsidii the housing 28. Removal of the handles 46 froni the stems 44 permits tuming of the cocks for thr6ad65 ing or unthreadl@ng the same on the manifold, aiad, of course. the cocks are. easily accessible .through the opening 3 1. A removable- grild may if desii-ed be provided for the openiiig 3 1. In 6peration, it will be seen that wh@n the 70 cock 40 for any burner is opened by turning the handle 46 thereof, primary -air is drawn in through the opening 31 in the burne@ b6x front 24 for delivery with the gas through the shutter 43 to the burner, and other air to support combustion, referred to usually as secbndary air, i* also drawn in through the opening 31 into the secondary air chamber 20 as a result of the draft created in the operation of the burner. A plurality of holes 51 are provided in the end wall 9 adjacent the bottom plate 18 to admit as much 5 more secondary air as may be required for good combustion. 'Me cocks 40 are practically in the direct path of travel of the air entering through the opening 3 1, and this naturally keeps the same fairly cool, but the crosspipe 52, that sup- 10 @lies gas to the manifold 17, is found to cause heating of the manifold 17 by conduction to such an extent that if no provision were made fbr cooling of the-manifold, the cocks would be gtibjected to undesirable heating by conduction 15 from the manifold. It is for that reason that I:have provided the upper opening 33 preferably just above a:nd fa-irly close to the manifold 17. A@certain amount of air enterhig the housing 28 through the lower opening 31 is thereby allowed '@0 to, fibw upwardly past the cocks 40 and around the manifold I. and out through th,e upper opening 36 whereby to cool the entire assembly to such an extent that the cocks are not heated en6ugh to have the lubricant therein dried out. There is, therefore, no occasion for the cocks to @tick or turn with difliculty. A baffle 53, the detgils of which are hereinafter described, serves in to @ crease the circulation of air upwardly around the manifold 17 and out through the opening 36 0 to keep the manifold as cool as possible. The crosspipe 52 is disposed inside the end wall 9 6f the bumer box and has the rear end PC thereof threaded, as ap ars at 54 in g. 2, for connection with the gas main, and its front end 5 is -]>rOferlably cut on a, miter like the end of the manifpld 1 17 and welded thereto. Owing to its proximity with the burners, the pipe 52 would be heated to an objectionable degree if it were not for the provision of the deflector 55 made 40 of sheet metal bent to substantially channel form in cross-@section, as appears in Mg. 4, and fitting over the pipe 52 from the side and placed in abutment with the inside of the wall 9 for complete enclosu,re of the pipe. The deflector 55 45 is fa,@tened in place in any suitable manner at the rear end thereof as by means of a lug 56 projecting upwardly therefrom and. fast&ned to the back wall 8 as by means of a bolt 57. I tor 55 is held in place at its front .5 The def ee 0 end by means of the baffle 53, as will now appear. The baffle 53 is formed from a single piece Of sheet metal reaching the full length of the housing '28 and bent to a substantially V-shaped cross-section to provide a front wall 58 and a 55 rear wall 59 defining an air pocket 60 therebetween for insulation of the housing 28 from the combustion chamber. The one end of the baffle 53 is notched out at the crotch portion of the V, as appears at 61 in Mg. 4, so as to flt over 60 the deflector 55 and hold the same in abutment with the end wall 9. , The deflector 55 has the "to@ wall thereof resting on top of the crosspipe @t2 for suliport of the deflector, and it will be evi-dent that since the baffle 53 flts over the deflector 65 55 as just, described, the crosspipe 52 also provide's some support for the baffle. The baffle is disposed with the front wall 58 inclined upwardly reaching from a point cons-derably to the rear ..and below the manifold 17 to a point above and 70 in.fro:@t of the manifold, the wall 58 finding support at its front end on the shoulder 38 previously mentioned. 'Me. rear wall 59 of the baffle extends. upwardly on a shaper incline and just tle4rs;the front end of the bottom plate 18, and @20072@446 3 is' then bent as at 62 to' re,,ich for@vaidly @fo-r anchorag,e, between the upper 6dge bf the froiit 24 ' ard the cook-ing, toi.,j 5, as at 63. The front end of the wall 59 is bent upwardly: at 63 for en5. gagemenf behiiid lugs 64 provided on the iiiq;ide of the cooking t6D, and it will also, app ear ho,,v lug@ 65 for-.rned on the i-nside@ bf the front 24 are arra ned to. @ supgort the fron-t end (if -the wall 59 irbm beneath. Ii,- o-peration, 'the-deflector 55 miniinizes the 'iidaging of the cros@pipe 52 s6 that t-bere is niuch.less heating of the manifold 17 ",by cop-diiction. , Alth6u.-h the rqanifold 17 i8 in fairly clos6 proximit with thb front burny er@,13, th6re is @little chance,for direct heating of the manifold in ti-il @ope@a;tion' of the Vurners, because of the viav in which the baffle 53 insulates the housing 28 frbm 'the cbmbustion chamber. ,Phe rear wall 59 of tb-e: baffl6 53 defiedts the heat of the borners and +uh6 interverdng-air pocket 20 60 minirilizes tie transfer bf heat from the wall t6 59 e @ll @,r)a bv r the wall 9.9 derives iroi-ii.-the wall 59 by coiidueti -Qn is piet+y well dissibated by tlde @ir that comes in cont,@ct therexvith w-hich enters the opening 31 and 6ii-culbtes through !Lhe housiiig 23 a,@id 6iit@thro-@gh tl-ie opening 361:so that@tliere is little dan@er of + @he r@ianifold and cocks being heated by' r@,clie,,ion irom that @art. The inclination of tT-i@- fr6nt wall 58 of the baffle@ 53 uP@o kicily toward the opening 36 over the manifold 17 inereases@ the@ circulation of air upwardly -h and out throu,-;h i@he openiiig 36. Tl-iere is a quite P. ,reeptible, chitnney or staek effect as a 35 result c-f air b-eated. by c.ontact with the cocks 40 and manif old I v@ tending to rise in the housin 9 28 and escape through the opening 36@ and it is this actdon plus the deflection of the baffle 5a thp,t accoluits for the good circulation of air 40 through the h.ousing 28. it is believed the foregoing description conveys a good imderstanding of all' of the objects and advantag-s of iiiy invention. The appended claims have been drawn with a view to covering ,,t5 all legitimate ,nodificati6ns and adaptations. I