USRE18235E - of oakland - Google Patents

Description

F. A. GERCICH ET AL KINDLING BURNER INSTALLATION Oct. 27, 1931.

Original Filed Dec. 8, 1927 IIIIIIIII'IIIIIIIIIIIIIA IIIIIIIIIIIIIIIIIIQ\\\ 11/ [all] I IN V EN TORS MW 7 Y B 0 W M R WW M F Reissued Oct. 27, 1931. 1

UNITED, STATES PATENT o FFic FREDERICK A. GERCICH, or OAKLAND, -AND'WALTER M. BERRY, or LOS ANGELES, CALIFORNIA, assrenoas TOHAMMER-BRAY COMPANY, or OAKLAND, CALIFORNIA,

A CORPORATION OF CALIFORNIA KINDLING BURNER INSTALLATION Original No. 1,728,165, dated SeptemberIO, 1929, Serial no. 238,527, fi1ed December 8,1927.

reissue filed February 24,

The invention relates to aninstallation for gas kindling burners in solid-fuel fire boxes.

An object of the invention is to provide an installation of the character described in which the kindling burner is disposed entirelv out of the combustion portion of the fire-box space whereby it may at all times be relatively cool and cannot be damaged by the combustion of solid .fuel in the fire box.

Another object of the invention-is to rovide the necessary secondary air for a 'ndling burner for a fire-box from without the combustionportion of the fire box.

A feature of the invention is the provision of a novel means for supplying secondary air to a. kindling burner. of the nature and for the purpose described, arranged forthe purpose of conducting, in the best possible manner, the proper amount of secondary air to the burner and subject to ready provision in or in connection with one of thewalls of the fire box.

The invention possesses other objects and features of advantage, some of which, with the foregoing, will be set forth in the following description of the preferred form of the invention which is illustrated in the drawings accompanying and forming part of the specification. It is to be understood, however, that variations in the showing made by the said drawingsand description may be adopt: ed within the scope of the invention as set forth in the claims.

Referring to said drawings,

Figure 1 is a fragmentary sectional view through a stove structure embodying the invention.

Figure 2 is a fragmentary side section taken through the fire box ofthe stove.

Figure 3is an enlarged sectional view taken at the line 33 in Figure 2.

Figure 4 is an enlarged sectional view taken at the line 4-4: in Figure 1.

In its present embodiment, the installation of our invention is incorporated with a combination stove 6 having a cooking'top 7 beneath a portion of which is defined a topgas-burner chamber 8 and beneath another portion of whichis defined a fire box 9 for Application for 1930. Serial No. 431,039.

Solid fuel. The chamber 8 and fire box.9

are separated by a common wall 11, and the chamber 8 is defined above a bottom wall 12, while the cooking top portion above the fire-v box is provided with an opening 14 in which a plate 16 is arranged to be removably mounted in a usual manner.

Preferably, the chamber 8 is divided generally horizontally by a member 17 to define a combustion compartment 18 above the member and immediately below the cooking top, and a fresh air supply compartment 19 constitutingthe remainder of the space of the chamber. Each top burner 21 is disposed generally in the compartment 19 and opposite an opening 22 in the member 17 whereby air in passing from the compartment 19 will be directed over the burner to provide the necessary secondar air supply therefor, conduit member 23 eing shown mounted at each opening for guiding the air over the burner thereat. The member 17, it will now be noted, depends from the cooking top portion above the chamber 8 and is provided with an imperforate and substantially vertical side wall 24 at the edge thereof opposite the partition wall 11. the wall 2 1 being spaced somewhat from the wall 11 whereby the relatively cool fresh air compartment 19 extends the full height of the chamber adjacent the wall 11.

Upper and lower kindler burners 26 and 27 respectively are provided for the fire box. Preferably, and as shown, the upper burner 26 is disposed to extend horizontally above the plane of the horizontal wall 12 and with the manifold portion 28 thereof in the com.- partment 19. Extending horizontally toward and into the fire box from the burner 26 through a slot- 29 in the wall 11 is a tapered rib portion 31 of the burner, which portion ispreferably of uniform section throughout its length and extends horizontally substantially thefull length of the fire box. The forward face 32 of the burner portion 29, it is noted, is formed to provide a series of rectangular nozzles 33 having jet openings 34 connecting with the manifold passage 36 of top.

"purposes; whereby, whenthere is no solid fuel in the path of the jets, a horizontal sheet of fire may be provided beneath the cooking The manifold portion ofthe lower burner 27 is also disposed without the fire-box space and at a level just above that-of the fire-box, grate 37 whereby gaseous fuel from the burner may be delivered directly into any solid fuel at the bottom of the fuel receiving space of the fire-box. This burner, it is noted, is

' formed generally as is the burner 26, and is here shown disposed generally inwardly of the latter burner with respect to the firebox, a lower portion 38 ofthe wall being ap propriately offset,and'provided with aslot 39 for the reception of the jet rib of the burner 27.

-As is usual, fire resistant linings are provided for thesides of thefire-box, such linings including a lining member 41 for disposition opposite and forming in fact, a part of the wall 11. The member 41, it will be noted, is disposed generally inwardly of both 'of-the burners 26 and'27 and extends substantially the full length of the fire-boxand between the grate and cooking top. To providefor the projection of the heme jets from the burner 26 through the member '41, the latter is provided with 'aseries of generally rectangular openings 42 opposite the burner nozzles 33 and in spaced relation therefrom. However, any otherarrangement whereby the burner, preferably protected from the heat, but at all events arranged to direct the fuel into the fire box,may be resorted to as'within the scope of this invention provided the'novel secondary air feed provisions more particularly herein-g after described are employed in connection with the said burner. Preferably, and as shown, an outwardly extending flange 43 ta pered in the manner of a nozzle is provided about the edge of each opening 42, whereby the openings provided in the lining member 41 are protected somewhat, particularly from above, from the entry of ashes or other solid materials therethrough, these openings also providing, in efi'ect,'conduits about the bases of the flame jets from the'bu'rner nozzles As here shown, the member 41 is secured to the wall 11 by bolts 44, spaced projections 45 and 46 being provided ont-he member 41 for main: taining the proper spaced relation of the member and walL As herewith-particularly shown, the projection 45 is formed "as a con-- tinuous rib overlying the slot 29 of the wall and extending the full length of the lining member whereby the space between the mem-,

bervand wall and above the burners is parti tinned off. In the manner above referred te there is provided a passage or air space 47 in a sidewall of the fire box proper for the express purpose'of supplying secondary air to theburner. p

:It will now be noted that the relation of the burner nozzles 31 to the tapered open-,

ings 42 is such that as the gaseous fuel is discharged through the'openings, air will be d'rawnfrbmthe air'spacel47 behind the lining member 41"and into the flame jets whereby it may serveasa secondary air supply for the jet. Such a supply is, of course, necessary. for eflecting 'a complete combustion of the fuel from the nozzles 31, and the relation between thenozzles 31 and member 41 is preferab'ly such that substantially all of the necessary air for the purpose is provided through the openings 42, In this manner, combustion of the'dischargcd fuel is insured regardless of the contents of the combustion space of the fire box, and no smothering of the flames of the jets is ossible as might occur when solid fuel-is being simultaneously con sumed' in the fire box. l

With the present structure, air must of course be admitted 'to the space 47 defined between the memb er 41 and wall'll, and below I the rib 45, and while the opening at the bottom of the member 41: might serve for the purpose, the draftcreated across the nozzles of the burner27," when" the burner 26 is in oper'atiomwould t'endto interfere with proper combustion of fuel at such burner; Accordingly, the wall 11 is preferably provided with a longitudinally extending opening .48 adjacent the burner 26 whereby air for this burner may be drawn from the compartment 19 of the burner chamber 8. Preferably, and as shown; the opening 48 is formed by bending out of the-plane of the wall a rectangular portion 49 thereof, such portion being left attached to the wall alongl one longitudinal edge and constituting a louver in effect. In this manner, a sufficient secondary air sup ply isinsured for the burner 26 and the effective passage provided'at the opening 48 maybeadjusted in a simple manner by adjusting-the angular relation of the louver 49 to the wall 11. -However-{when only the upper burner 26 isused, air will readily enterthe'opening 42 andpass upward in the passage47 to the upper burner, and if the made for conveniently associating the burner with said wall in such manner that the burner will be protected from the heat from the fire box, yet will most effectively inject fuel into the fire box and cause the mixture of secondary air with the fuel to insure proper combustion at all times.

We claim:

1. In combination with a fire-box for solid fuel, a gas burner disposed at a side of the fire box generally outwardly thereof and providing a nozzle for directing a stream of fuel into the fire box, a lining member disposed in front of said nozzle and having an opening opposite said nozzle to permit the dis charge of said fuel stream therethrough, and means operative to provide from behind the member the secondary supply of air for effecting the combustion of the fuel of said stream within the combustion space of the fire box.

2. In combination with a fire box for solid fuel,- a gas burner disposed at a side of the fire box and providing a nozzle, and a lining member disposed in front of said burner and provided with an opening opposite said nozzle and in spaced relation therefrom whereby a stream of fuel passing from said nozzle through said opening will draw the secondary air supply for the combustion of said fuel through said opening from behind said lining member.

3. In combination with a fire box for solid fuel, a gas burner disposed longitudinally along a side of the fire box and providing a row of nozzles for projecting gaseous fuel into the fire box, and a lining member di posed in front of said burner and provided with openings opposite said nozzles to permit a free discharge of fuel therethrough, said openings being formed to provide conduits for directing a secondary supply of air from behind said lining member and into said stream.

4. In combination with a stove having a solid fuel fire box and a top gas burner chamber separated by a common wall, a kindler burner disposed adjacent said wall and providing a nozzle for directing a stream of fuel into the fire box, a lining member insaid fire box disposed in front of said nozzle and perforated to permit the passage of said fuel stream therethrough, and means operative to provide from said chamber the necessary secondary supply of air for effecting the combustion of the fuel of said stream within the combustion space of the fire box.

5. In combination with a stove having a solid fuel fire box and a top gas burner chamber separated by a common wall, a kindling burner disposed generally within said chamber and having a nozzle portion thereof extending through said wall into said fire box, a lining member in said fire box disposed' opposite said wall and burner nozzle portion in spaced relation therefrom and perforated opposite said nozzle portionto permit the passage therethr'oughof fuel from said nozzle portion, means operative to provide from the" space between said memberand said wall the necessary secondarysupply of air for effecting the combustion of said fuel within the combustion space" of the firebox, and means operative to supplysaid space with air from said chamber.

6. In combination with a stove having a solid fuel fire box and a top gas burner chamber separated by a common wall, a

chamber to provide a combustion compart- 4 ment immediately below the overlying cooking top portion, a lining member in said fire boxf disposed along said wall in spaced relation therefrom, and a kindler burner disposed in said chamber without said combustion compartment and arranged to discharge gaseous fuelthrough said wall and lining member into the combustion space of the fire box, said wall and lining member'being provided with openings 'throughwhich a sec? ondary supply of air for said fuel in said fire box is arranged to be drawn from said chamber.

8. In a stove, a solid fuel fire box, a burner arranged to discharge gaseous fuel into said fire box, and a wall at a side of the fire box having a vertical air passage within the confines thereof and opening laterally therethrough into the fire box and arranged to receive air from a point without the combustion space of the fire box and to conduct said air to said burner to support combustion of said gaseous fuel.

9. In a stove having a cooking top, a solid fuel fire box, a burner for gaseous fuel located beneath and within the confines of the cooking top and arranged to provide a flame in said fire box whereby to heat said top, and a wall at a side of the fire box and within the confines of said top for providing a secondary air passage arranged to receive air from a point without the combustion space of the fire box and to direct such air to the point of combustion of the gaseous fuel in said fire box, said burner being arranged to discharge gaseous fuel through a part of said passage and into said fire box.

10. In a stove, a solid fuel fire box, a double wall structure associated with the fire box and a gaseousfuel burner arranged to be proteotedgirom theheet of the firebox by said:' wall structure and to provide e flame 111 fire ;box, i said wail mcture providing a ondary air. passage between the two-wallsv thereof, said passage openinginzterallyiinto,

said fire box and conducting an to the point of and to support combustion of the fuel in said five box, said burner being. ocated on the outside; of the :wall structure hav: ing a portion thereof extended intothe lab erally open-end ofthe passage. 1

11.; In a stove, a solidiuel fire-box} do ihle wall structure in association with the, fire, Y

box and providing between said walls a ondary air passage having alaterally extendeddischarge outlet opening into the fine box;

and a gaseousfnel burner providing through,

the instrumentality of said outlet a. flame in said fire loox forgdireotly heating the "top thereof. 7 V t p 12. In a stove, asolid fuel fire box, a double wall structure in association with the fire box.

end providing therein a seeondary air pa-ssage having; discharge outletopening into thefire box, and a gaseous fuel burner 1o-- cated to onesideof the wallstnuoture and having a portionthereof disposed insaid passage and providing through the instrnme n tality of saido'litlet a flemein said fire box, for-directlyheating the top thereof. In-ztestimony whereof, we have hereunto, setour hands at Oakland and Ins'Angeles, California, respectively, on Jan. 30th, 1930,- and Feb;7th,-1930. v a i FREDERICK .A. GEBCICIL WALTER M. BERRY; 1

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