US1099876A - Gas-furnace. - Google Patents

Description

A. E. HALL.

GAS FURNACE. APPLICATION FILED MAY 19, 1913.

1,099,876. V Patented June-9,1914.

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OF OAKLAND, CALIFORNIA, A. COIBZPORATIONOI CALIFORNIA.

GwAS -FURNACE.

Specification of Letters Patent. PatentedJune-9 1914 Application filed Ma 19, "1913. Serial No. 768,479..

Tra ail whom it may concern:

Be itv known that I, AiLBEKII. E. HALL, a citizen. of the United States, residing at 0ahland in the county of Alameda and State of Galifornia, have invented new and useful Improvements.- in Gas-Furnaces, 0i

which the following is a specification.

l his invention relates to airheaters and particularly to a gas furnace.

It is one of the objects of the present invention to provide a gas furnace in which the maximum heating efliciency of. the. heat units. produced by the combustion of the fuel may be had; to provide animprovedgasfurnace in combination with; a register supportcdby' the structural-elements of the building to beheated; and to provide in; a gas .lurnace novelxmeans for igniting the burner ot the turnace from a position adjacent to the register, thusavoiding the noses 'sity of the person desiring to light the burner leaving the room. in which the register may be arranged or into which the heat fromuthe furnace may be delivered.

lfit isa furtherobject of the invention to provide a furnace structure which can be very readily'attached to and detached from the building structure with. a minimum cost and without requiring expensive alterations or changes in the structure, and also to proride in combination with an air heater means through'which the burner may he scent. and: thus more readily and carefully controlled to. produce the desired flame.

'll he invention consists of the parts and the construction and combination of parts as hereinafter more fully described and claimed, having referenceto' the accompanying airing, in which the figure is a central vertical section through. the furnace.

lllhis invention comprises a furnace or air heat structure consisting ot three substantially; concentric drums, as-an outermost flue or casing 2,. an intermediate wall 3, and. an innermost drum 4, the latter being closed with a top-5 and abottom 6 and these members being interconnected by air'tubes 7 extending parallel throu h the heat drum 4. The heat drum 4 and t e intermediate wall 3 terminate in approximately a common plane and. these are rigidly connected with" the casing or shellt2 by a grill or other suit.-

able frame or. brace 8, provided with" openln gs. of ample area for the flow of air,' aswill be hereinafter setfort-h.

Mounted upon the top 5 of the heat drum- 4 1s a window?)v of suitable area, and which may be of mica or other heat-resisting transparent material, through which, when looking. downward, there is rendered visible a burner 10. The burner 10 is here shown as mounted: within a. burner chamber 11 attached to" the bottom 6 of the heat drum 4;

the' burner chamber 1D projecting downwardly throu h an aperture 1-2 bf slightly larger area ten the area of. the burner chamber and which is formed. in aabottom' 13 closing the lower portion ot the furnace casing or shell 2 except for the aperture 12 through which the burner chamber 11 proects.

An important feature of the present invention consists in; the means for connecting the furnace with the structural. elements of the building in. which; it may be mounted,

and which means alsolform fines for the conveyance of cold air to; the air chamber,

within the intermediate wall 3 of the furnace, andfor conveying the heated air there from into\ the room. or apartment to be heated. 'Ilothat end the shell 2 of the" furnace is shown-as tapered at its upper portionand continuedrin the reduced neck. 14; which terminatesadjacent to and rests in a floor register l5. of any suitable type, which maybe mounted upon the floor 16 of the structure. To the jointsl'l ofthe floor are attached suspending hangers 18 appropriately and detachably secured, to the casing 2ofthefurnace, and? which hangers substantially support the entire load of the furnace by direct-connection with thefloor joists 17..

The hot air flue 3 is contracted. and exr tended. upwardly at a throat L9, concentric with the neck 14,. and. also seats in the lower portion: of the register l5which is rovided with the usual apertures,through: e outer- 'most, as 20, of which the cold lower strata of air can. flow downwardly in a space between the neck 14: and throat 19,. while through the inner apertures 21 ot the register the heated air will riseirom over the heatv drum. Thus a. constant. circulation is furnace bottom 12 and below the heat drum bottom 6, from which space the air will rise through the several air tubes 7 and pass into the throat 19, issuing in a heated state through the register apertures 21, whence it freely rises.

A particular advantage of the present furnace is that all of the heat units,.except the small proportion escaping with the burnt gases at the escape flue 4, which is located in the drum 4 well down toward its bottom, are conserved and utilized by heating the upwardly rising volume of air in the annular chamber or flue between the walls 3 and 4;. The'downward draft of air from the register apertures 20 andin the space between the outermost wall 2 and the hot air flue 3 prevents the loss of heat units from the wall 3 of the hot air flue, since the down wardly moving colder volume of air will become heated by the heat radiatingfrom the wall 3 and its temperature again increased as itflows upwardly through the hot air chamber between the wall 3 and the drum 4.

Another important advantage of this construction is that the hotand warm members of the furnace are insulated from contact with any of the tructural elements, particu larly where the throat19 of the hot air flue 3 passes through the floor joists and connects with'the register 15, since thethroat 19 is surrounded by a volume of cold air'movmg downward-1y withinthe neck .14.

It is a further object of this invention to eliminate the necessity of the attendant or person desiring to ignite fuel at the burner, or to manipulate the control valves thereof, having to go from one floor, or from one room, to another of the building, for the sim ple purpose of regulating the valves of the burner. Tothat end I have provided a novel means for igniting the gas conveyed to'the burner 10 by a supply-pipe 22. The igniting .means consists o a tube 23 supported andopening at its upper end in the register 15; the tube being projected downwardly throu h the furnace and through one of the air tubes 7 of the heatdrum, through the bottom 13 of thefurnace, and terminating with an open end just above a burner 24 having burner openings directed upwardly and horizontally' The burner discharges in close proximity to the open end of the air tube 23 and the horizontal burner openings discharge a jet of gas toward an aperture 24 formed in the burner chamber 11 just above the burner 10.

The two'way jet burner 24 is provided with gas by a suitable connection-26 with the supply pipe'22, in which pipe 26 is mounted an adjustable control valve 27 having a'stem 28 projecting upwardly through the "furnace and terminating and resting in the register 15. Into the upper end of the turns the valve stem 28 to admit gas to the valve 29, through which it flows in a reduced quantity to the two-way jet burner 24. Then by applying a light, match or flame from any source at the top of the igniter tube 23 the gas rising from the jet burner 24 therein will be ignited and will backfire, causing combustion tooccur at the double tips of the burner 24. The horizontal jet projects through the aperture 24' of the burner chamber lland this may be observed by the person looking through the apertures of the register 15 and the window 9 of the heater drum, through which the burner 10 in the chamber 11 will be visible. When the pilot flame is projecting into the burner chamber 11, the

operator then places a key over the upper end of a valve stem 80 in the register 15', which stem projects downwardly and connects with a main valve 31 controlling the flow of gas from the feed pipe 22 to the burner 10, thereby opening the valve 31 to upper end of the pilot valve stem 28 and turns oflf the pilot flame.

Having thus described my invention, what I claim and desire tosecure by Letters Patent, is i 1. A floor hot air heater comprising a register, an outer and an intermediate shell secured to and depending from the register, an inner drum havinga top' and bottom which top and bottom are spaced from the ends of the outer shell, air tubes extending through the top andbottom of the inner drum, said top having a window therein which is in vertical alinement with said register, a'burner chamber alined with the window and register and connected to the-bottom of said inner drum and projecting be low the bottom of the outer shell, 3 bottom for the outer shell having an aperture through which the lower end of the burnen chamber projects. a burner arranged below the bottom of said outer shell and projected into said chamber, a supply pipe for the through the top and bottom of the inner,

drum, said top having a window therein which is-in' vertical alinement with said register, a burner chamber alined with the window and register and connected to the bottom of said inner drum and projecting below the bottom of the outer shell, a bottom for the outer shell having an aperture through'which the lower end of the burner chamber projects, and' a burner below the bottom of the outer shell and projected into said chamber.

3. A floor heater composed of a register, a shell secured to and depending from said register and having a bottom, a burner chamber connecting with the shell interior,

. a supply pipe for the burner, a pipe communicating with the supply pipe, a two-way jet burner connected to the second mentioned pipe, a vertical air pipe having its upper end secured to the register and having its lower end arranged over one of said jets, the

other of said jets registering with 'a lateral aperture provided therefor in the burner chamber, a rotatable valve in each of said pipes, and a rod for each valve, said rods being connected at their lower ends to the valves and having their upper ends rotatably secured to the register.

4:- A floor heater consisting of a register, an outer and an intermediate shell secured to and depending from the register, an inner shell having a top and a bottom, the bottom of the inner shell'and the bottom of the intermediate shell terminating in a common plane which is located above the plane of the bottom of the outer shell, a: grill connected to the outer and intermediate shells and to the lower end of theinner shell for supporting the latter, a burner chamber connected to the bottom of the inner shell and depending below the lower end of the outer shell, a burner in the chamber, and a bottom for the outer shell through which said chamber projects.

In testimony whereof I have hereunto set my hand in the presence of two subscribing witnesses.

I ALBERT E. HALL.

Witnesses:

HARRY E. LEACH, E. R. CORDAN.

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