US1766111A - Stove construction - Google Patents

Description

June 24, 1930. L. DANA 1,766,111

' STOVE CONSTRUCTION Original Filed April 4, 1928 3 Sheets-Sheet l lies/k Dar/mg I 5 Sheets-Sheet 2 Original Filed April 4, 1928 Ag M 6 4 P fly c 1 ...,C. w 3 2 H t w g A r O 4 Q 5 ww w w fl Jun 24, 1930.

L. DANA Y STOVE CONSTRUCTION Original Filed April 4, 1928 s sheewsheeit 1:3

W WM M W Patented June 24, 1930 w ll LE'SDIE'YDANA',\OF sm. -I.otrIs,,MIssoUm, 'ASSIGNOR 610 CHARTER OAKz'STdVE ANDIRKNGE. .p coM mNY, A-ZcoTRPoRAwmN-cm' "ivtis'seirm v I stave GONSTRU'C'IIUN Original applid at'iq'njvfild Aptii4f1928, SeritxlNa. 2 7,401. Divided and this-'epplieition filed March 21,

1929. "'S eria1Ne.348,950. I

Thisinvention pe'rtains to: czist iron or steel eoqlnng -st0ves -01 ranges, 'p"art1culm ly domestic ranges 'o'fthe type burning either coal 01 wood and aims generally to improve -tl1e'c0nstruct10n thereof. Certain ether objects (if the inventioii-ai'e to dbtain' mere uniform distribution :of heat to the 0v e'n, t0 form the parts so, thet they may be readily enamelled; to improve the assembly 0fthe' st0ve-bedy -:i'nd base, and so to fg'rm xthe' eonstruetion as to obtain greater simease in c'ilea'ningr plieity and accessibility of -pa ts andgreater in gs "of a referred embodiment illustrating Fig. 2 is a -s'eeiional "View taken 011' *lines As set forth in ni-y prioi epplicat l) "tegether constituting the combustion chamber, end separated'by a shalkingtgragte 'con prising'a plurality- 0f bars 3, 3. Adjecenttdthe' cembustion chamber is anovenfl,

ugdnnd which the products of eonibustion foutil'legs 6=j0ined by intermediatesections 7,48. 'Aiccessory features, such es s'helvesi Warming ovens, and :the like (not shown) mwyflbe attached or omitted as desired, these feetufes being well Y known I finish. f structural features "end the relation Of flue systeinto'thewest (if the stovestructhat vthe -'-v"i's'ible surface will "be a linest en:

ion Seenamel. rieil N0. 267 ,401 filed April 4,1928-df vvhich this atpplication is a division, the din-wings v shcts a seeking range of the type'having at I k and forming *no pait 0f the'invention. FOT 'cenvenience- 1 herein shqw end describe mystove as lie-vingthe fi rebox at the, leftend, which is usual in the art. f The external casing comprises "the' tbpfi and 'fivej prineipal pltte inembe'rs, "nar'nlyf foul" sid'eprendwells 10,- 11, 1-2,}ztnd"13,end a "bottom (14, el l {fitted to each ether thy cence'aled flanges and b0lted t0gether interior 1y, makin extetnell flush joints. 'Each' 'of the plate members "will gordinarily be em" in 5 tegi al casting. The exposedsurfaceof the" ished finish with e tmrterrounfdedge mil,

emcee-led from view, may "be o'f Tough black r conneti-ngielements, such :as bdlt heads, ings and s0 on, pertaining to the frbnt end ends are arranged net to p'rotfllfile through ei be Visible On the outside; all deer hinges and latches are (fencetiled, and n11handles-endknobs-are I'n'acle asincons icuous as pes'sible, the iprincip'ehbnes 1 bein castintegral =wit11the parts to which" they apply, and exteri'orl'y "stream-lined ISO As set forth in niy zibdve nnen tiOiled Yap} plicetien the artistic j effect and iinita fy lpitei'idr sii'ifi'ace's 'On the top, front fend si'des, Which also facilitate the enameling of the exposed surfaces. i

In general, the' heatingpassages in the e outer "endwell 12, bel0w the oven iadjacent ward-1 y through the flue opening, 15 end flue the opposite end of the stove adjacent the I V casing 16, and thence to the chimney connec- 1 tion throughthe flue pipe opening 17 Provision is made for directly by-pass ing' the heated'gasesto the flue casing 16 by means of a draft opening 18 at the top and to therear of the'oven, controlled by a a control slide 34; and the construction also provides means, Ewhich may take the form of amovable baflie plate 19, positioned be- 'tween the oven bottom and the stove bottom 14, for directing the flow ofgases to obtain more uniformheating of the oven.

' The been ,stove casing, from thebottom 1 1 to within ashort'distance'ofthetopfi. This plate 20 20 forms the right wall of the combustion chamber-and the'left end of the oven, and separates the. oven and bottom flue space from the fire box and ashpit chamber, be-

7 sides supportingtheoven top-21 and oven floor 22. As illustrated in Fig. 1, this plate, together with' the oven top, furnishes a base for 'a post '23, ,givingintermediate support 7 to the stovetop 5. From the level of the ovenabottom. to the level of the fire box ;.bOltQm, thisplate is bulged'outward to-v ward thefire box, as shown at "24, Fig. 1, increasing the capacity of the.- lower part 7 of the'oven. The inside of the bottomcurve [25 of' this. bulge forms a part of'theoven 35111001, and is flanged 'to fit with the. oven floor plate 22, which is appropriately secured thereto- The outside of the top curve :26

of the bulgeconstitutes part of the fire box support- The .right end wall'27 of the oven jis supported, together with the right end.

7 of the bottom. 22, by lugs'28, on the front and back plates 11 and 13 0f theexterior casing. The upper surface of'the. oventop plate 21' is providedwith cross-ribs 29, and shelf holding lugsorribs are cast on the inside: I of the left and right walls, thereby strengtheningthe oven structure, .as well as providing permanent and rigid means for sustaining theshelves. N

All the corners of the oven cojfcastingor flue piece 16 fitted on the back ofthe ovenextension 31 covering-almost the entire width of the oven back, and

V reachingfromthe bottom of the stove cas- 5 ing to just belowthe top rear rail.. Suit The ovenfit comprises a unitary transverse 1 heat conducting vertical plate20, which ex v tends the full widthiof the interior of the the flue space beneath the oven 7 V V V V are rounded as shown inthe drawings, and thefioor plate 22 iscorrugated, as best shown inF-ig. 2,

able; means for a substantially .air tight' fit are provided, herein shown as flanges 32, best seen'in Fig-. 3. The top' flue 18 and the bottom flue '15, beneath the oven, lead into the casing 16, from which products of combustion are carried away as usual through V the-hole 17 in the fine piece 16 near its top,- i e which is preferably surrounded by a, pipe collar 33. Opening 18 is provided-with a kindling damper 8 1, as shown in .Figsf'1 i and 2, by wl'iich; the. flue gases may be di-.

rected around the oven, directly to the chim- I ney, or partly injeither direction. 7

. To cause. complete circulation of heat beneath the oven when the kindling damper 34 is shut, the bottom baffie 19, above mentioned, is hinged to the. under side of the V oven floor plate 22. This baffle, as shown, extends diagonally into the middle of the space below the oven. 1 A satisfactory baffle construction, herein shown, comprises a cast leaf 19 with an integral pintle at each'end of'the top, as shown in Figs. 1 and 2. Theinner pintle 35 is held loosely in a .gud eon 36=beneath the middle of the oven oor,

while the outer pintle 37 passes out throughfl a hole inthe back '13, and ends in a down'-. turned handle 38. Vihen, down, as best shown in Fig. 4, the outer edge. of:.the=leaf 19 rests against a-rib 3 9 insidetheback plate 13'of the stove casing',andcons trains the draft passing beneath the oven tofollo'w the path indicated by the arrows A.- A,

Fig. 3, thus heating the 'entire floor 22.}; 1 V In case this is notidesired, or-in case the a space under the oven is to be cleaned out,

the leaf'19niay be raisedto th'e dottcd line 1 position 19' of Fig. hand the handle pulledoutward, when it is held up by the top of the rib 40. By raising. the leaf and removing the cover 41 of theclean-outopening;

be cleaned in its entirety.

mayjreadily c The back of the stove casing is single cast plate 13 r s l rshape, the bottom I and ends being in a common plane. and

flanged to fit the adjoining. plate members, I

while the top is carried "out beyond the bottom, asshown in Fig. 2,.partly by-aboxlikeflextension forming the end of the fire box 1, and partly by an upwardly and reari As above wardly inclined overhang 42. mentioned, a section of the back plate 13 behind the oven is alsoextendedj outwardly, forming a bay 31, constituting a" rear ex; tension and back wall of theoven. The bottom plate 22 'is flat on top, with recesses 48at the corners to receive the, lugs 1 1 and bolts 15 that'secure the front and back walls 11, 13 thereto, .(see Fig.3), and

with edge "flanges 46 of U-shape (Figs. '1

and which form a peripheral 'top groove into which the bottom flanges49 ofthe foura side walls fit.

lower edge with a downward shallow t V The outer wall of the en-fv circllng ,U-shapedflange is formed alongits V I ing dirt, and makes the bottom pit easy to strengthening irib, :which atzthe corners "of theistove is twirlene'd somewhatitofiormibearing ssupports adapted to-"rest ton corner lugs-A8 "dfstheibase. 1 V 11 .This construction .is particularly iad'vantageous iwithr :ana enamelifinished sstove 'FOf the stream-line i type because thei slightly increased flange depth rat theacorners zraises thev'stove body :just sufficiently ""to prevent chipping of the enamelsalongithe topof'the keep clean.

The bosses 49 on the underside of the bottom plate 22, one near each corner, allow the stove assembly minus base and legs to be set'on a floor or platform, leaving sulfiicient spacefor a finger-hold under the edges,

thus facilitating handling and minimizing the danger of chipping the enamel. This construction also makes it possible to assemble the stove on the bottom plate 22 with vthe bottom nuts on the outside, inasmuch as speedof setting up is increased 'byhavmg the bosses 49 are of greater depth than the projections -of the assembling bolts.

The under side of the bottom plate is suitably reinforced, as by a central'rectangular 'rib 1; 50, from the corners of which diagonal ribs 51 run to the bosses 49, as best indicated by dotted lines in Fig. 3. 1 I

It will be apparent from the foregoing that my inproved stove is characterized by :compactness and strength combined with a' pleasing appearance. The oven construction is such as to permit easy cleaning, by

reason of the rounded corners, and its design is such as to utilize the'heat advanta-v geously, theoveir being nearly surrounded-by the bottom draft flue and the wide rear outside flue 16, and also receiving heat transmitted through plate 20 from the combustion chamber. r I I From a mechanical standpoint this stove is characterized by a relatively small number of fairly large separate parts, many having combined functions, and by having-those parts which are tobe enamelled so shaped as ".to allow the enamelto spread itself freely and smoothly'thereon. In this mannerdifficultiesin dipping and'bakingthe enamelled castings areavoided; p q I The cost of assembly is reducedand the few parts, and by arranging them soas'to the number of bolts required.

The invention is not limited to the illustrative s'embodiment' therein :shown and described, zbut what :I golaimis as follows:

.:1-.- (In EI QOOklHg range: of the -type having f L'ifi'LEB tboxi'a'nd ashpit tovi'on-e side ofkandsof greater height zthan an .o'ven,:and r adjacent saidi-ovenfli in a commons-external casing, a: common :Wflll between saidefire box and said oven: donned :of 2a unitary casting having its intermediate :portion; offset ifrom its .up-

per :and. zlower sections, land projecting into widens saidifireibox, :said intermediate :portlon -W1d61'1S the lower portion of-sa1doven,

forms a roundedsbottom corner therefor,-.and

narrows -said firelbox below the;.gr-ates, .and said :lower port on widens esaid -ashpit .and

constitutesa-supportrfo1v one l end of the botf tomofsaid oven.

oven,;.-connecting flue spaces above, at the othervend of, and 'below said: oven, annitary heat conducting -.wall separating said fire 7 said fire box, whereby said upper sectionnarrows the, Atop part 0f said oven and box and ashpit from said oven, forming the terminal-wall of said .flue .below said oven,

and supp'orting'the'bottom.of saidoven and rack-s therein, said .vwall comprising'three horizontal sections of approximately equal depth, (the middle; of said sections being ofiset away frorn said .oven in a plane parallel to-the planeotthe upper and'lower' sec'tions.

3. .lnnpooking r.ange,'having a fire box,

an ashpit and;an.oven, as azsubcombination,

19 .a- ,verti-cal partition extending from front to rear-of the.stove, ,comprising upper, mid

dle,-, and-.lowe xhorizontal panels ofapproxn mately equal .height, vsaid middle panel be. ing -.o fl set..frorn.-said upper and. lower panels and joined ,thereto by curved 'ledges, *said partition constituting the rear wall of the fire box and lashpit, and constituting a side Y I wall jan d aIbottom support of the oven, the

upper :o'fisa'id curved ledges forming a part of \thelbotton of the fire box, and 'thelower" of said :.ledge s forming a curved lower inner e'dge of ltl'l. oven, ,j oinin'gxsmoothly onto the bottom thereof. p ,4. ,In a cooking range, in combination, an

oven characterized bye corrugated bottom,

rounded corners ,and 1 edges, and a reversely V curved plate which supports onesid'eaof said bottomand.constitutes one of said rounded V ,120 ..5.';A corner construction for enamel-' finished stov'e's comprising, in combination,

a 'ibasesplate, a peripheral fiange thereon, a slig'htlyjdeepened portion on said "flange,

anda support for said base plate including means to engage saiddeepened portion of isaidifiangef hold each other in place thereby reducing 16. In astream-line type of stove, in com 7 bination, a-bottom .plate, upright plates rislga i of and'said securing means v p r 'snpporting members within saidlb'ase, and

means 9n said peripheral I flange .coacting with saidsupporting'members wherebytorelieve the pressure between said upper. base and said bottom edge flanges." i 7 7.In an enamel-finishedst0Ve,-inc0m-- bination, a body,-inclnding enamelled walls 7 V with "intu rned enamelled bottom flanges, a glbottom plate having an enamelled edge adapted to receive said flanges, a downward peripheral flange on the bottom of said body adapted to fit within said bottom plate and comprising slightly deepened porbase adapted to support said body by means of said slightly deepened portions, whereby between. p I v I a 1 8; A stove casingincluding, in combination, a bottom'platef and an upright plate rising therefrom, periphery of-said bottomplate, a groove. a defined byssaid iflange, an mwardly extend ing enlargement 'ot s'aid'groove, a flange on. said: npright plate seating wlth n fsaid groove, a; holding elementon' the ns de of said nprightplate extending nto 531d. en largement, and securing means fastening said holding element therein, whereby sald' bottom pl'ate and-said 'npright plate iarei nnite'dintoa permanent structure. H i 9. In combinationhin a stove having a body which comprises fabottom plate and" upright side members meansfor secnri'ng said plate and said members. comprisingj'a a lug on' one of said side members fitting within said recess, and holding means eni ,sald bottom plate, said means notrisingraboye -i the top sui'fac'ejof said plate; If

V aging said lugand iu and said'holdin'g ingthrough said mgs and'said bott tions in the bottomplate, lugs within said edge but without material separation therea' flange around the' recess below the top surfacefof said plate, r

10. In a stoye casing whichinclndesia' snpportingl bosses onlqthe/bottom-of ,S Hideplate, recesses on the top of said plate below Y the top surfacethereof, and means coacting with :said recesses to secure saidside meme? bers theretoyalllof said securing andreinforcing means lylngibetween the planeof the v topi ofsaidbottomiplate and the plane of f lm said recesses,-;sa1d lugs, an'd sai d securing meanslbeing sol proportioned that said'lngs do not rise aboye 60" the top surface oflsaid bottomplate."

"11. Ina stove'cas'ing of the type compris i I bottom plate and upright 's'ide'f nem' ing a b ers, in combinatiomfa, downward flange" 1 aroundrthe periphery ortsaidplate, rein enforcing ribson the bottom 0fsaidplate, and

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