US1348972A - Stove - Google Patents

Description

J. M. TOBIAS. STOVE APPLICATION FILED AUG-18,1919. 1,348,972.

Patented Aug. 10, 1920.

2 SHEE'ISSHEET l.

WITNESSES UNITED. STATES PATENT OFFICE.

JOHN MARK TQBIAS, e PITTSBURGH, PENNSYLVANIA.

store.

Specification of Letters Patent.

Patented Aug. 1c, 1920.

Application filed new 123, i919. Serial No. 318,116.

Allegheny and State of Pennsylvania, a citizen of the United States, have invented or discovered certain new and useful Improvements in Stoves, of which improvement the.

following is a specification. I

My invention relates to improvements in stoves, the objects in view are simplicity of structure, cheapness in building, serviceability, and good appearnace. I

\Vhile broadly unlimited, and applicable to stoves for burning fuel of any kind, my invention is particularly applicable to gas stoves, and is so illustrated in the accompanying drawings, in which Figure I is a view of the stove in side elevation, a detail being shown in vertical medial section; Fig. II a top plan view; Fig. III an end elevation; Fig. IV a transverse vertical section, on the plane indicated by the line IV-IV, Fig. I; Fig. V a horizontal section, on the plane indicated at VV, Fig. IV; and Fig. VI a fragmentary view on the same plane with Fig. IV, showing an invertible part in its alternate position.

The stove which I provide consists essentially of three pieces or members: two end plates 1 and anintermediate screen wall 2. The end plates may be, and preferably are, formed of cast metal and the screenwall is preferably of sheet metal. The screen wall is arched or U-shaped in cross section, as is best shown in Fig. IV, with the opening downward and the arched web upward, and it is preferably perforate or reticulate, as Figs. I, II, IV, and V show it to be. The free lower edges of the arched screen plate are shaped into beading 3, which affords both a finished appearance and mechanical advantage. The inner faces of the end walls are shaped to engage the edges of the screen wall 2 and, the screen wall being formed as preferably it is of sheet metal, the parts when assembled will, by virtue of the resilience of the sheet metal screen wall be the 'more firmly secured together. Indeed, the

screen wall will be locked to the end walls. In this particular it is to be noted that the end plates are provided with flanges 4 to support from within the medial portions of the arched screen wall, and with other discontinuous flanges 5 to engage on the outside the extremities of the screen wall, and particularly to engage the beading 3. Still other flanges 6 arranged inward of the screen wall when in place, and overlapping the space between flanges eland 5 admit of the ready assembly f the parts and at the same time are effective to prevent the crushing in of the sides of the arched screen wall.

It will be seen, on referring to Fig. IV that, when the parts are assembled and the two end plates secured against separation, the screen wall is secure against displacement. For ready access to the interior of the stove, the screen wall may be easily removed by pressing, first inwardly, and then upwardly one of the beaded edges 3 so as to disengage it from the flanges 5. ready removability of the screen wall is due to the fact that the external flanges 5 are dis continuous, that they engage the screen wall externally at its terminal portions only, leaving the medial portions unrestrained exteriorly.

The screen wall is preferably perforate, to admit of air circulation and to allow the flame burning within the stove and whatever incandescent parts there may be within to be seen.

The burner 7 extends through an opening in one ofthe end walls and into the space between the end walls in the lower part of thestructure, at or near the level of the base of the arched screen wall 2. This is best shown in Fig. IV. The burner is provided with the usual pipe connections and air ports. These features are indicated in Figs. I and II, but they form no part of my present invention. The burner may be anchored within the stove by a lug 8 cast upon the burner, preferably at its free end, and by a bolt uniting lug and stove wall 1 (c. f. Fig. III).

IVithin the stove and above the burner when the parts are assembled), and in suitable position to be played on and heated to incandescence by the flame, is a grid 9, while beneath is a shield plate 10. The grid is made preferably of cast metal or other heatabsorbing and heat-radiating substance and is preferably of substantial massadequate, capable of being heated to incandescence by the burner flame. It will be observed here that the burner 7 is so constructed that its perforations 15 project the flames laterally upon the grid 9 which is placed close to the burner. Thus the grid is heated by the hottest portion of the flames which, because they impinge laterally upon the grid, are not This ' dispensible. The cap plate 11 may be prosmothered. The shield plate ll), intended to protect from excessive heat the fioor'upon' which the stove stands 'may be formed of sheet'metal. These two members, the grid 9 and the shield plate lO are convenient braee .members, to the opposite ends of which the end plates 1 maybe bolted. When these members are bolted together, with the screen wall 2 in place, as the drawlngs show, the whole structure is securely held together.

It may bebolted at by virtue of such bolting it may serve to brace the end plates in position when-the parts are assembled, and the bracing function of grid 9 or of shield plate 10 may accordingly be rendered unimportantor even vided with a hole in which maybe set an lnvertlble flanged gr1d12, to serve, when 1n the position shown 1n Fig; IV, as a support foranarticle to be heated-a basin of water, for example or, when in the positlon' shown in Fig. VI, as a flange for the attachment of a stove pipe. The cap plate 11 and flanged grid 12 (when they are used) may conveniently be made of cast metal. the cap plate is not us'ed,or when it is re: moved, the screen wall 2 may be readily removed in the manner previously stated, and the stove then used for heating or cooking upon the top of the grid 9. v r

. I claim as my invention: 7

l. 'A stove comprising two end walls, means for securing said end walls against separation, a'screen of resilient material bowed between said end walls, the said end walls beingprovided with internal support for the edges of the screen along the medial bowed portions thereof and with discon-v tinuous external-support for the'edgesoof said screen at the terminal portionsthereof,

hen 7 and removed while the end walls remain held by their securing means, substantially as described.

'2. A stove comprising two end walls, a grid arranged between said end walls, and a removable screenrof resilient material bowed between said end walls and above said grid andengaging said end walls along its opposite edges, the said end walls being pro- .vided with internal support for the edges of the screen along its medial bowed portions and with discontinuous external supports for the said screen at the terminal portions of the said opposite edges, substantially as described.

3. A stove comprising two end walls, a removable screen of resilient material bowed betweensaid end walls, the said end walls being provided with internal support for the opposite edges of the screen along medial portions thereof and with discontinuous external supports for the edges of the said screen at the terminal portions thereof, the ends of said internal and external supports being remoteat intervals one from another, and thesaid end walls being further provided with crushing-preventing flanges arranged opposite the intervals between the internal and external supports mentioned above, substantially as described.

4L A stove comprising two end walls, and an arched screen wall interposed between V the end walls, a cap plate resting upon the stove so comprised, andan invertible flanged grid carried in an opening in said cap plate,

substantially as described.

. In testimony whereof I have hereunto set my hand. V

JOHN MARK TOBIAS.

WVitnesses I PAUL N. CRrroHLow, Francis J. TOMASSON.

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