US1553260A - Domestic heating furnace - Google Patents

Description

Sept; 8,1925. 1,553,260

H. W. NEAL DOMESTIC HEATING FURNACE Filed-July 31, 1922 3Sheets-Sheet 1 se ts, 192s. 15532260 H. W. NEAL DOMESTl iC HEATING FURNACE 3 Sheets-Sheet g Filed July 31 1922 ATfoeN-y.

Sept. 8, 1925. 1,553,260 H. w. NEAL DOMESTIC HEATING FURNAGE Filed July 51 1922 3 Sheets-Sheet 3 Patented Sept. 8, 1925.

UNITED. s Ares PATENT. OFFICE;

HARRY W. NEAL, or 'rnnmimronis, INDIANA, ASSIGNQB TO HALL-NEAL FURNACE ooMrANY, on INDIANAPOLIS momma, A coaroaarron or INDIANA.

' DOMESTIC HEATING rURNAcE.

, Application filed July 31, 1922, Serial 110,578,671, I

To all whom it may concern:

- Be it known that'I, HARRY-w. Nae,

citizen of the United States, residing at Indianapolis, in the county of Marion and State of Indiana, have invented certain new and useful Improvements in Domestic Heating Furnaces, of Which the following is a specification. v i r This invention relates'to a method .oflconstructing and manufacturing'hotair-fur naces for domestic heating purposes.

One of the objects of the invention consists in the provision of a method whereby hot. air furnaces fabricated andmanufacing capacity is greatly increased, 'and'the cost of construction materially reduced.

I accomplish the above objects of themvention, and such others as may appear from a perusal of the following description and claims relating to such method of fabricating and constructing, as exemplified in a preferred composite structure shown in accompanying drawings, which form'a' part of this application, in which,

Figure 1 is a'partial side elevation and a partial longitudinal sectional view of a domestic heating furnace constructed in accordance with my improved method. Fig. 2 is a top or plan view of the furnace, the outer casing being cut away on the plane 2-2 in Fig. 1.

' detail vertical section of the forward portion of the furnace, in which the outer casing is omitted. Fig. 4 is atransverse View looking towards the front end ofthe furnace, on the plane l-4 in Fig. 3. Fig. 5' is a horizontal sectional view of the furnace, on the plane 55 in Fig. 1. Fig. 6 is a. fragmentary detail sectional view, on an enlarged scale, showing more clearly the joint for securing the division wall with the furnace walls. Fig. 7 is a fragmentary detail view in side elevation of the rear portion of the furnace. Fig. 8 is a transverse sectional view looking towards the rear end of the Fig. 3 is a fragmentary of the furnace. said described assembled furnace sectlons is outer casing-in this figure being omitted. Fig. 9 is an elevation of the rear end of the furnace. Fig. lOis a perspective-view of a pair of crimped members which conjointly furnace, on the plane's- 8 in Fig. 1, the

form one of the integral sections of the unitary furnace structure.-

pears when out from the-raw stock.

Referring to the drawings, I have illus-- trated a composite heating furnace structure fabrlcated and 1 constructed 1n accordance with my improved method, which consists in stamping or cutting from the raw material stock a number of individual blanks 15, as illustrated in Fig. 11, which may at'the same operation, or subsequent thereto, be bent along the dotted line 16, 17 18, 19 and 20 into an angularmember 25 as illustrated.

in Fig. 10. It will be observed that all the members 25 are bent a like manner to D Fig. 11 is a. plan "Vl6W of a furnace-member blank as itapi promote uniformity in contour, and there-.'

by require buta single cutting die. These members 25 may then-be arranged in pairs and 1n reverse pos1t1ons, as shown in Fig. 10.

and when properly united each pair of members forms a section ofthe furnace. \Vhen two of the' members25 are placed in a reversed ordertheir meeting edges are brought together, alined, and then welded together alongthe dotted lines AB 'in Figs. 4 and 8 J to form integral'sections of the subsequently unitary furnace structure. Each off'the' furnace sections, composed of twoof the united.

members 25, has the si'de -edges bent outwardly into the right angle flanges 25* which not only provide large bearing surfaces for the attachment of the succeeding sections,

but in addition increase the heat radiating surface area of the furnace, and, furthermore, the flanges serve the purpose of accelerating the action of extraction ofheat from the members 25 constituting the walls The number of the aforewith theflat faces of the flanges 25 abutting one another, as shown in Fig. 5, each pair of contacting flanges is securely welded together to form the unitary integral furnace structure. The open remaining ends of the unitary furnace structure are closed by 1 to the action of expansion and contraction,-

means of the end-members 1 and 31, each of these members being Welded to the broad face of the adjacentsection 25. The front end member is provided Withthe usual 48 fuel opening 33 and the ash-pit opening 34," and the rear end member 31 is provided with the usual smoke outlet openings 35 and 36;

and a clean-out opening 3?} In constructing the end members 30 and 31, I introduce the novel arrangement which consists in forming those members on arcs in crosssecflion so that these members will more easily -respond thereby correspondingly reducing the liability of such actionaffecting the welded joints formed between the end members and the grooves or channels 41 which areof such width as to conveniently receive the marginal edge-portion:ofdivision wall l0, Division wall 40,- similarly: to the endrmembers 30 and 31, is benton an are so thatk it may readily respond to the actionyof expansion and contraction of the a unitary. furnace structure. Division. vvald is. provided." with the smoke opening-43 thronghwhich the smoke passes from the combustion chamber 44 from which the smoke may pass directly into the outletpipe v4L5, or'it ma be deflected into chamberto :back of division Wall 40 and effectan escape through opening the vertical piped? and back to the pipe 45, depending upon the position occupied by damper \Viththe-preceding disclosure of one of thevpreferred embodiments of the invention constructed in accordance with my improved method as a guide it will be easy for those skilled in this art to design other forms of unitary furnace strnctures to meetparticular requirements of usee-which will present all m of the -functional and result attaining characteristics and advantages of my improved method.

l e m: a.

1. A furn ace body comprising a plurality of duplicate endless sections each" section having parallel flanges at oppositersides welded'to contacting flangesof adjacent sections said flangesincluding a pair of stepped flanges and; a baflie plate of greater diameten than the 5 inner diameter of the furnace lsaid ba-fileplate having its outer edges extending between the, stepped flanges, substantially as set forth, V k p z 2. A furnace body structure comprising a plurality of duplicate endless sections each sectionconsisting of a pair of identical members each member having flanges extending at right angles to the main portion thereof said membersalso having their ends extending-inward to ,prov ide upper" and lower *WallS. s aid pair-i ofgmembers in eachsection being oppositely-arranged and welded together at the meeting edges. of the said upper and lower,,walls and adjacentSQctions having their contacting flanges Welded together, substantially as setforthl I y In witness whereof, Ihavehereuntoset my hand and seal ateIndianapolis, Indiana, this ZQthday, of July A." 1)., one thousand nine hundred and twenty-two.

HARRY W. neat. [n 8.

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