US2039539A - Stove construction - Google Patents

Description

May 5, 1936; s, KLUTE 2,039,539

STOVE CONSTRUCTION Filed March 28, 1934 2 Sheets-Sheet 1 ATTORNEY.

May 5, 1936. 5, mm 2,039,539

STOVE CONSTRUCTION Filed March 28, 1954 2 Sheets-Sheet 2 INVENTOR 57 4 0 M 57 a/m/e/ My ATTORNEY.

Patented May 's, 1936 UNITED STATES STOVE CONSTRUCTION Samuel Klute, South, Bend, Ind., asaignor to The Malleable Steel Range Manufacturing 00.,

South Bend, Ind.

Application March 28, 1934, Serial No. 117,793 '2 Claims. ((21. iza-i) The invention relates to improvements in stove constructions, and particularly to improvements in the construction of the cabinet of a coal or wood burning cook stove.

The primary object of the invention is to provide a construction of this character which provides an air-tight stove cabinet.

A further object is to provide a stove cabinet construction wherein the side and back panels are formed of sheet metal and interconnected by interlocking flanges.

A further object is to provide a stove cabinet construction comprising panels interconnected by interlocking flanges and provided with means act ing upon said panels for tightening said flange joints to effectively close or seal said joints throughout their length.

A further object is to provide a construction of this character wherein bulges and openings between the edges of interconnected panels are eliminated.

A further object is to provide a stove construction wherein the use of rivets and like securing means is reduced to a minimum.

With the above and other-objects in view, the invention resides in the combination and arrangement of parts as hereinafter set forth,

shown in the drawings, described and claimed, it'

being understood that changes in the precise embodiment of the invention may be made within the scope of what is claimed without departing from the spirit of the invention.

In the drawings: Figure 1 is a perspective view of the stove. Figure 2 is a top plan view of the top frame of the stove.

Figure 3 is a fragmentary vertical sectional view of the stove taken on line 3-2 of Figure 2. Figure 4 is a fragmentary perspective view of the stove cabinet.

Figure 5 is an enlarged fragmentary sectional view of thestove cabinet taken on line of Figure 4 and illustrating the interlocking flange panel joint construction as first effected.

Figure 6 is an enlarged fragmentary sectional view of the stove cabinet similar to Figure 5- and on which the stove cabinet is supported. The.

stove cabinet comprises a front panel Ii, side panels l2, rear panel l3, and top frame ll. The front panel H carries a door It. opening to the flre chamber and ash compartment of the stove,

an oven door IO, and a door I'I opening to the reservoir compartment. The top frame it carries the usual reservoir lid l8, cooking plate is, and fire chamber lids 20.

The top frame It is preferably of integral cast or malleable metal construction having (one or more openings therein for the reception of lids II, I! and 2|, said lids being supported by downwardly off-set inwardly directed horizontal flanges 2i carried by vertical webs 22 depending from said frame at the inner peripheries of the lid openings. Corner pieces 23 are carried by the frame ,said corner pieces being positioned at the bottom of saidframe with the outer sides thereof alignedwith the adjacent outer faces of the vertical webs 22. One or more depending vertical ears 2! are carried by frame It with the outer faces thereof substantially aligned with the outer face of the web 22 by which each is carried. The side panels l2 and rear panel ii are formed of sheet metal, and these panels are interconnected by a joint of the construction illustrated in Figure 5. Rear panel I! terminates at its ends in a rea'rwardly directed, spaced, return bent flange 2i; and the side panels l2 terminate at their rear ends in an angularlyinwardly bent portion 20, which carries a forwardly directed,

spaced, return bent flange 21.. The flanges of these panels are slid to place, guided by the above described flanges, and these flanges serve to form an interlocking Joint. Suitable interlocking joint members also serve to connect the side panels l2 with front panel ll. At their lower ends, each of panels l2 and I3 is provided with an upwardly inwardly directed, spaced, return bent flange 28. A sheet metal bottom plate 29 is provided with marginal downwardly directed flanges l0, and these flanges fit into the grooves or pockets formed by flanges 28, and suitable rivets ill or like securing means extend through said flanges 28 and 30 and through the lower ends of the side and rear panels to secure said bottom plate 29 in operative relatiom In assembling the cabinet, the vertical panels l2 and I3 are first relatively shifted to assembled relation with the flanges thereof interlocking, then bottom plate 29 is positioned therein with its flange 30 supported by the return bent flanges 28 of the vertical panels, and top frame I is then applied to this assembly. The upper ends of the vertical panels of the stove cabinet bear against the outer faces of the webs 22 and are secured to the ears 24 of frame II by bolts, rivets or other suitable securing means 32.

It will be seen that in this construction of the stove cabinet, a minimum of securing bolts or rivets are required, and that these are located only along the horizontal joints. The purpose of these securing members 3| and 32 is solely to secure together the parts of the cabinet, and particularly bottom plate 29 and top frame It to the vertical panels or the cabinet, whereby only a small number of these securing means is required. The securing function of these securing means is thus clearly different from the function of forming a seal or tight fit at the various cabinet joints, which is conventionally achieved in the art by the use of a large number of securing means disposed at the joints. In this con-- .struction the function of sealing'the joints is achieved or carried out solely and effectively by the interlocked flanged ends of the various parts, whereby openings formed by bulges resulting from the use-of rivets and the like to form a joint are entirely eliminated, and whereby, in

the use of enameled panels, the danger of chip-' by flanges 28 of the vertical panels holds said panels in operative relation to each other; which function is also served by the engagement of the vertical panels with the top frame at their upper .edges.

The size of bottom plate 29 and flanges 22 of top frame I4 is such that the vertical panels are outwardly extended or forced to produce "a tight interfltting relation between the interlocking flanges at the joints thereof so that; al-

though said flanges originally flt together somewhat loosely, as illustrated in Figure 5, to permit relative sliding thereof in assembly, the outward -tension placed thereon by the top frame and bot- "tom plate brings said flanged interlock into frictional engagement whereby an air-tight seal or joint is obtained. In other words, the top frame and bottom plate serve to force the vertical members laterally outwardly and thereby take up the slack, play or looseness of the interfitting flange joints throughout their full length, as illustrated -Q in Figure 6.

It will further be seen that this construction permits the stove cabinet per se to be built as a unit, and this unit may be suitably mounted on base Ill constructed to receive and operatively position and support thesame.

The construction of the oven of the stove utilizes the advantages outlined above. This oven construction is illustrated in Figure 7. The oven 35 is formed of sheet metal and comprises two parts, one part 36 thereof being of U-shape in cross section and carrying inwardly directed aligned portions 31 at its ends, which portions 31 carry outwardly directed, spaced, return bent flanges 38. Plate 39 forms the other part of the oven, and extends between the open ends of said U-shaped member 36. At its opposite sides,

39 and thus forms a tight joint between the interlocking flanges of the joint to produce airtight sealed joints. At their opposite ends, the members 36 and 39 01 the oven carry flanges 4| by means of which the oven may be operatively secured to the front and rear panels of the stove.

Thus, this construction permits unit assembly of the various parts of the stove, simplifies the handling and treatment of enameled members in the assembly thereof to prevent loss due to chipping or breaking of the enamel, provides an airtight frictional joint for the stove parts, and utilizes bolts, rivets or like securing means only for securing parts together at a few points whereby the use of such means is reduced to a minimum. The invention having been set forth, what is claimed as new and useful is:

1. In a stove cabinet, enameled sheet metal side panels, a sheet 'metal back panel, said panels being provided with complementary return bent flanges at their vertical edges and with inwardly upwardly return bent flanges at their lower edges, said first named flanges being formed to normally loosely interfit and provide interlocking joints between said panels, a sheet metal bottom plate having marginal downwardly directed flanges fitting into said last named flanges, and a rigid top frame having rigid depending flanges engaging the upper inner faces of said panels. the flanges of said bottom plate and top frame being shaped and positioned whereby they maintain said panels at the outermost limit defined by said interlocking flanges to thereby tighten said interlocking joints without damaging the enamel on the panels by providing positive double-face-contacting engagement between said interlocking flanges throughout their length and to provide positive face-contacting engagement between said panels and the flanges of said bottom plate and top frame throughout their length.

2. In a stove cabinet, the combination with enameled vertical sheet metal panels provided with complementary return bent flan es at their vertical edges and with inwardly upwardly return bent flanges at their lower edges, said first named flanges normally loosely interfltting to form interlocking joints between said panels, of a bottom provided with downwardly directed marginal flanges fitting into said last named panel flanges, and a top provided with flanges having face contacting engagement with the inner upper faces of said panels, the flanges of said top and bottom being of a perimetral dimension whereby they maintain said panels at the outermost lateral position permitted by said interlocking flanges to tighten said interlocking joints without damaging the enamel on the panels and provide positive face contacting engagement between the complementary parts thereof.

SAMUEL KLUTE.

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