US1834019A - louis - Google Patents

Description

Dec. l. 1931. L. DANA STOVE CONSTRUCTION Original Filed April 4, 1928 In/manto@ Patented Dec. 1-, 1931 LESLIE DANAfoFsT'. LoU'Is,MISSOURI,Assreriortv To `oimRtlEJa OAK Vsrovra menig i. .Y y COMPANY, AcoRroRATIoN, or Missoula-Isf rlhis invention aims'toiirnprovestreanrline and other cooking YraI-iges,r particularlyas `r.e' V spects'the lire box and gra-te and shaker r`structures thereof.l Further objectsfof the'invens'tioniareto provide al duplex grate suitable! for burning either coal vor Wood yand to pro` vide a strong, simple' stove structure'c'apable ofeasy assembly, i" A '7. j'

Otherobjeots and advantages ofmy inven-j lotion will lbe apparent fromy the-5 following specification yand accompanying drawingsof a' preferred" embodiment illustrating* theyr principles thereof, Whereinthef same ref--Ll erence characters apply to thesame'elements in all figures, and wherein: Y

iF ig. 1 is an isometric view-showing afpore Y` tion of the tire box en'd Wall and adjacent 'portions of the front and top of a stovekem-V bodying'my invention,` certainy parts bei-ng removed for better -illustration;.

Fig. 3 is a sectional elevation'talrenonliney Fig; A@is an'isometrc'view'of the grateand operatingparts removed -from the rebox and 'fi AVFig. 5 is a sectionalplanfview taken online 5-5 o'FigS. 1

fire box end of a stove illustratingthe inventionmay be discerned inlig.` 1, andl thei'nternal 'arrangement' andi construction is bestA seen in Figs. 2 through t. f L j The drawings shovs7 the `lire box of:v a: cooking range of the typehaving at one en dfa fire box 11 and ashpitf12, together Aconstitutr ing the combustion chamber, separated by a p shaking grate comprising-fa plurality of bars .t

40113', 13, and an oven 145 adjaeent thereto,

around which the ,products of combustion may eirculategsurmounted by a llat` top 15 ofc'onve'nient design having a plurality of remov able rectangular plates l16v and 'round lids 17 and supported ona base,v i

' For convenience I herein show-and `describer theJ-ire boxas at the leftend ofthe stove, which is usual in theart.

5l) four side or end Wallsand abottom',v allitted Fig 2 is a sectional elevation takeng through" Some idea of the general appearance ofthe v- The external casing comprises, the top 15.,VV

waehothefiby coac'aiedfahges and bolted' i together interiorly, making externally flush joints Each off the plate members vvill ordi- A' narilybe'an'integral casting] Theexposed n Surface ofthe lcasing maybe e'namelled,v ex# f n ceptforthe top 15,"Whieh is Yusually of vsmooth"y Y i y blackf r-'poli'shed inis'hgwith a quarter-round edgeraihipreferably polishedto match.- The bottom and'back; which arefordi'narily concealed from= view, may bev-'of rough black'jc'- nish@ .v i 'i f .K

All connecting elements, such as bolt heads,

Vlugs and so on,;`pertaining to' the'front and ends vare "arranged not to" 'protrude through or befvisible on'the outside', all door hinges and latches areiconcealed, andall'handles and.E knobs are kmade'as inconspicuous as possible, the' principal ones being cast integral withethe partsfto ifwhich they apply,r vand exteriorly stream-lined sothatthe visible-surface will be 7b almost v'entirely `free Y.from projections', thusf -f resembling yin Yappearance alisingle 'polished-' V blockbf enamelik Y y h Toenhance theartisticeiect' and carry out l t the unitaryj appearancegilthe left 'end'22 and' 75 l p front-23' of the casing" are --swelled outwardf andin "again from bottom to top',`and the' f extreme-top lportionjl) is `moldedout'rili'a curve j of shorter racliusyv meeting the bottoniof the quaiter-roundtop rail 18'so as toformsi therewitha smoothly rounded top edge Without 'overhang orfirregularity'. -The upright, edges or corners 2O of thecasing-are likewise 'i curved ve'rtically Va'r'id rounded to]y carry out y tively wi'degfjasat; and thevbottom narrow, 95'" as `at27, to conformtofthe"dii'erence'in wid-th v ofthe stovefat top and botto`1nas` Will `beim;V n Y derstooYdf-by reference tolFigx--ofthis- 'ap-` plication Vand to my'f'cop'ending application Vwhich this appiicason is a division. This jpiece 25Qis suitably vmolded to tnercharacteristic configuration of the left end and is ver-v 910 heat to vwhich it isfexposed, has as itsprin-` .A rcipal element a; cast iron liner VA38, partiallyV curved-.to follovvthe shapeof the' stove; the hinges 39I with integral transverse heads V40 being cast thereon', and a latch 41 'being s vriveted thereto. A facing plate 42, conformingto the curvature of the stoveand1ena1n elled, isfastenedfto Ythe liner byfra. screw:Y r-lhis .plate 42 :includes the integralfhandle Y 43 which. like Vthe :handles onthe doorsv 36 2Q and` 377, is a curved brow overhzangin'gv and concealing an aperture in `theft-,door .plate thereunder, It'he'gbrovv also being openrat the bottom andformed Without Asharp edges,

harmonizing with f the graceful. -flovving curves ofthe stove` body. The'recess into ""Wliichthe door fits is Vformed by fianges'y 44,vvith appropriate recesses for hinge and latch engagement, respectively.A

On alljthreedoorways the -rabbet effec@of.

-the concealed flanges 44 of the openingscom- ""'bine's With the/edges of the doors and liners. VVto make a .sufciently air-tight fit with very Y .little grinding (ii-machining of the'oastings. Referring Vparticularlyto Figs. 2 and 3,

' d the fire box-11, hereinshovvn as adaptableto burn either Wood for'v coal, carries fiuted line,

fing-slabs, preferably of cast iron, atr'front,

back and ends, the frontand backslabs 45.

and;46--having fingers 47 at the bottom-(t0 I 'i0'.I hold.v the fuel vfvvhile..frllovving the access' of air, .Smallholes 48 near the topv of the frontslab lrpermita slight ingress of Vair above the fire;y Anasbestos backing strip 49.0n theA heat to Y frontslab 4,5 cutsfdovvnthe escape of .45*the outsideuof thev stove.- Y

The front end' slab50islusually kept'in Y place-When 'burning coal, to save the door 35 l' vfrom thek injurious eects of, the eoal gases.

-v Itis contemplatedY When burning vvvood,.tl1mtV 50.". the slab 50 be removed so that sticks may be f" thrown in through the-door 35. Y

.As clearly shown in4 Fig; 3, the rear end-,ex-i tension liscut off from the' fire box proper br-.means of the rear.V end slab 52. A Water coil may be located in Yvthisrspace, although such a coil is nota feature of the present in- .vention and is accordingly not illustrated.

A Theusual-Water-pipe holes ,.753 and pivotedv covers 54 are provided.

dtatable onvtrunnions 55Mcarried in bearings at eitherfendtof the fire box. The. bearings atthe rear-consisg' respectively, of apocket U fandjof' a hole'lfboth in the .back plate Si? 24, .andthofseatthe` front comprise forwardly extending hooks 58, cast integral Withthe front plate 23, and covered by a trunnionretaining cap 59, Fig. 5,` (omitted frommovement of the grate bars to enable thev front `ends of the .bars to .be movedsidewaysl and v.downwardly"out of engagement with the stationary extending hook-bearings 58 "to'facilitate' removal and replacement of Vthegrate bars. This `provision,enables the use offrigid' hoolebearings 58'fcast integral with the front plate 23. The trunnion retainingacap 59 prevents accidentaldisplacement ofthe Ygrate barswhenin nsef-i .Each grate bar is of genera the., concave faces 60 ordinarily beingused` for coal-andthe convex62 for. wood.

l lly triangularcross section', having only Atvvo.effectivefaces, .oneY concavev 60, Ywith relatively large rec: tangular openings 61, .and the otherconvex. 62, With Ysmaller t elliptical openings 63..

vShaking of the grate, orchange ofthe i faces used, isaccomplished by the lever' 3l permanently mounted ,on the. left end ofthe stove, the handle of Ysaid lever extending above land slightly'away'from the stove top l5 so as to remain cool.;

,The lever 3l`is fulcrumedfto a lug 64, r `Fig.14, cast Von the rear Vend lining slabx52 of the fire box 11, vvhichlugproje'cts through the'V apertured groove 2Sinthe finishing piece 27 Fifrfl AReferrin articularl to Fi .4 n g p. y a Y a the lower end'ofsaid leveris connectedA link'65 to an arm 66 securedto the Qrear end of one. of thefgrate tru'nnions 55Y which extendsfoutthroughthe holey 57 inthe backv I plate 24. The two grate bars 13 are'intercon'.l nectedmby segmental'gears V67, at their front. ends so as toV oscillateV in unison vWhen the'V lever31 is shaken..l f

- Anapronf positioned beneath'the n and extending around; .three isides i of .the

grates fiere box directs fallingV ashes into the ashpan. l

',What I claim is :A 1. Inma' stove, 1n combinationwanarrow depending from' the kbody'of saidstove, and..V a detachable cap piece having recesses for v .elongated fire box, apair of" grate bars longi.- i tudinally .disposed oscillatable therein, end;

engaging one` end of each'ofsaidtrunnions Y l l to hold the same in `place in saidbearings, 69 -The grates. 1 3 are of the duplex type, "roV` Y and bearings for said trunnions'adjacent the opposite end ofjsaidffirejbox comprising one recess in the body of said'stove and oneaper-l 1f ture in said body, said recess and saidi apera outsideof said tire box, an upwardly extend-v 2. n a stove, in combination, aeflre box,

a pair of shaker grates mounted therein `and .e interconnected Jfor conjointaction, a `fire box lining slab forming the rear end of said fire box andhaving a I'portion extending laterally ing lever pivoted to said portion'and having a handle portionextending away from said cause movement of said graines.

3. ln a stove, in Combination, a fire box, f

a pair'of shakei'grates mounted thereinand interconnected for conjoint action, a fire box lining slab forming one Wall of said tire box and provided With a fulcrum point, andV shaker means connected to said grates and fulcrumed to the fulcrum point of said lining.

slab.

In testimony whereof, 'I have signed my name to this specification.

`LESLIE DANA.

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