US1499136A - Gas stove - Google Patents

Description

K. AIRD ET AL GAS s'rov June 2451924. f 1,499,136

Filed NOV. 29. 192] 2 Shgets-Sheet l.

June 24, 1924. 1.499,1.' s

k. AIRD E'r AL.

' GAS sovr:I

Filed NOV. 29. 192] 2 Sheets-Sheet 2 Patented June Z4, 1924.

UNTED STATES l inane PATENT OFHCE.

KENNETH AIED AND soUIEE ARCHIBALD DAVID WEBSTER, or Eenzame, scojTLAND, .essIGNoRs 'ro R. AND A. MAIN LIMITED, or EDMONTON, LONDON, ENGLAND, A

BRITISH COMPANY.

eAs s'rovE.

l Application filed November 29, `1921. serialNo. 518,600.

To all whom t may concern.'

Be it knowny that KENNETH AIRD and SQUI-RE ARCHIBALD DAVID WEBSTER, subjects of the King of Great Britain, residing at Falkirk, Scotland, have invented certain new and useful Improvements in Gas Stoves, of which the following is a specification.

This invention relates to that class of Vgas stove described and illustrated in our British Patent No. 152191 and consists principally in so constructing the fuel plate as to support the iirebrick back, the burner and injector nozzle and in providing said plate with devices to position the radiants Vin relation to the burner nozzles, theburner being supported by the fuel plate at three -points to give flexibility. The invention is applicable to other types of :gas stoves :and also comprises other elements of construction as hereafter set forth. The present invention will ,be fully understood'from the following description in `con-A nection with theA annexed drawings which illustrate an example of our invention applied to an inset gas stove and in which-.-

Fignre 1 is `a top plan view ofthe `fuel plate.

Figure 2 a frontelevation of the fuel plate. Figure 3 a side elevation ofthe fuel plate. Figurev l is a section on the line a a of Figure 1.

Figure 5 is a lsection on the line Zibb of Figure v1.

Figure 6 is a section on the line c` c ofFigure l.

Figure 7 is a transverse vertical section of a .gas stove embodying the invention. j

Figure 8 is a top plan view of the gas stove shown in Fig. 7, the dogs being shown 0 in section. V

Figure .9 is a perspective view ofthe stove complete.

According to this invention the fuel plate 6 is provided with a hooked projecting lug 12, which lugl extends over the upper `:edge and engagesthe back wall 11 of a supporting structure.

From the lower side of the fuel plate adjacent the rear edge `of same depend `two Saddle piecesl which bear against the front face of the back wall 11 of the supporting structure and which receive and support the lugs 15 projecting rearwardly from the burner 14. .A 'plurality yof holes 16 are formed in the fuel plate 6 just forwardly of, the saddle piecesl, and projections L17 are formed `on the upper side of the fuel plate inradvancerof a line passing. through the centers o f the holes f1.6, and other projections v18 `somewhat larger than the projections 17 are'forinedpon the upper surface of the `fuel j plate to the rear `of vsaid line. A plurality of `holes vor apertures 19 are formed lin the fuel plate 6 `between the i projections 1.8, These holes 19 vserve to admit air from beneath the fueluplate 6 tothe spacebetween Ithe* radiantsgv2 the fire back `1. Such y fair not only assists in preventing,overheating of Ethe fire back but `as it passes between the radiants ,and .the fire back is itself heated, thus addingtothe heating `efficiency ofthe stove. j

The columnar radiante 2 are positioned :over the holes or apertures 16 inthe Vfuel ,platel -with .their flower 'ends yresting between `.the projections 17 and 18.`

The fuel plate 6l1a's anose piece 2,0 proj ecting from its forward edge approximately midway .between its .endsbut at a lower level than the main portion `offsaid plate, .said nose piece having `a screw-threadednhole 21 torecjeive a screw 22 provided with a'winged button 23. The screw 22ertends through .a

yslot Ja `lug 24 which projects .'forwardlv "IOHI `the burner 14 and the winged buttoiiY 23 of said screw bears,againstthe lowerside of fthe lug 241 jto support :the forward end of .the iburner. A Y

The fuel plate 6, forwardly of the holesgor ,apertures .16, is provided with la yridge 25 andthe portion ofthe plate 6 which extends forwardly .of said ridge is at a lower level `than that portion of said plate which extends .rearwardlycf said ridge, as shown in Figs. -3 to 6,l and lthe ends `of such lforwardly .en`vtending `portion are provided with extensions having slots `5k extending,longitudinally of Y such extensions. A pair of apertures or holes 2,6 are formed inone ofsaid forwardly projecting portions, and the portion 'of the plate 6 which surrounds each of said holes 26 is thickened as at 28 to afford greater strength at such parts. I The injector 27 has a pair of arms 29 which have screw threaded holes in their ends and the injector 27 is secured to the fuel plate 6 by screws passing through the holes 26, 26 in the fuel plate and engaging the screw threaded holes in said arms 29, 29.

The supporting structure is formed with a back wall and Vside walls, the side walls each Vhaving a forwardly directed extension 30, each such extension carrying at its end a screw threaded nut 31 or hole whilst a lug projects rearwardly from approximately the center of the back 11. Said lug is provided with a screw threaded nut 32 or hole and ordinary screws 9 extend through the threaded openings inV said lug and in said arms 29 with ytheir heads resting upon the floor,thus forming supports for the supporting structure. rfhe screws may be adjusted to position theV supporting structure correctly and, since there are only three points of support, perfect flexibility is given to the supporting structure. Y

' The back 11 of the structure also carries two uprights 33, 33 which are connected at their upper ends by a bar 34, and each of said uprights is provided with a hole adjacent its upper end. The fire back 1 rests ou the fuel plate behind lthe projections 18 and holes 19 and bears against the uprights 33, 33

and top bar 34 and is held in positionby Ybolts 35 which are passed through the holes in the'upper ends of thek uprights 33 land through the fire back 1.

Theburner 14 is provided with a'pair of rearwardly extending lugs 15, one adjacent each end, and with a single lug 24 which projects forwardly intermediate its ends. The two lugs 15 Yare carried by the saddles 13 of the fuel plate and the slotted lug 24 Vis carried by the head 23 of the screw 22 since the lug 24 is slotted and, since the lugs 15 have a free movement in the saddles 13, the burner nozzles 86 can be correctly adjusted with regard to the openings 16 and columnar radiants 2 and will be maintained at that position by the tighten` ing of the screw 22;` and since the burner is supported at three points perfect flexibility is given the burner under all conditions without affecting its position with regard to the brilliants 2.

On the' depressed forward portion of the fuel plate 6 is positioned a trivet .4 having a pairof screwl rods 37, 37 on its under side. These rods 37 are provided with wing nuts 38, 38, the screws 37 extending through the slots 5 of the fuel plate, so that, after adjustment of the trivet 4 on the fuel. plate,

the wing nuts 38 will clamp the trivet 4 and fuel plate 6 together. Y

The forward edge of the trivet 4 is provided with a depending lip which engages a bar 7 and such bar 7 has a hole at each end, to receive bolts which extend through slots 40 formed in dogs 8 one of which stands at each forward corner of the stove. By tightening wing nuts 39 on the bolts 40, the bar 7 and dogs 8 are secured together, so that after adjustment of the trivet 4 with the dogs 8 in position a tightening of the 4nuts 39 will fix the trivet in place.

As will be understood adjustment as 'to height of the stove is obtained by adjusting the screws 9 and adjustment as to depth is obtained by adjusting the vscrew rods 37 in the slots 5 of the fuel plate 6.

lt will be understood that, although we describe and illustrate an inset gas stove the fuel plate and burner fittings are equally have dogs, on the outside casing of the fire place or mantel.

What we do claim as our invention and desire to secure by Letters Patent is :f-

1. In a gas stove, a fuel plate having a row of apertures therethrough, and a hooked lug, a pair of saddle pieces depending from said plate, a supporting structure for said fuel plate having a back wallwith which said hooked lug engages and against which said saddle pieces bear, columnar radiants supported by said fuel plate above the apertures therein, a burner having nozzles projecting through the apertures in the fuel plate, said burner having a pair of rearwardly extending projections resting in said saddle pieces and abutting said back wall, and adjustable means for suspendingjsaid burner from the fuel plate at athird point.

2. 1n a gas stove, a fuel late having a row of apertures therethrough and a hooked lug on its rear edge, said plate further having a pair of saddle pieces depending therefrom in spaced relation, supporting means for the rear portion of said plate comprising a wall engaged by said hooked lug and resting against said saddle pieces, columnar radiants mounted on said fuel plate above said apertures, said plate having projections on its upper surface adjacent said apertures for properly positioning said radiants with l respect to said apertures, a burner having nozzles extending into, saidV apertures and a vpair of rearwardly extending projections resting in said saddle pieces and abutting re back supported by the fuel plate, said set our hands in presence of two subscribing fuel plate having e second set of apertures witnesses. therein between said radiante and said fire KENNETH AIRD c f c Yustabl secured to the fuel back 'L lmet .tlf l. Y soUlRE ARCHIBALD DAVID WEBSTER. 5 plate and projecting over a portion thereof,

and Ineens for supporting the forward edge Witnesses: of seid fuel plate. e PETER M. PEARsoN,

In testimony whereof we'have hereunto AGNES A. RAE.

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