US1449311A - Heater - Google Patents

Description

Mar. 20, 1923.

, 1,449,311 J. BEARD HEATER Filed Dec. 6, 19

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Patented Mar. 2Q, 1923.

warren stares JAMES BEARD, OF PASADENA, CALIFORNIA.

HEATER.

Application filed December 6, 1920.

T 0 all whom it may concern.

Be it known that I JAMES BEARD, a subject of the King of (rreatBi-itain, residing at Pasadena, in the county of Los Angeles and State of California, have invented new and useful Improvements in Heaters, of which the following is a specification.

It is the object'of this invention to provide a heater particularly adapted to employ gaseous fuel. and arranged to provide a maximum heat radiating surface. It is a further object of the invention to provide baflies within the burner in such manner as to force the products of combustion against the walls of the burner and thereby obtain a maximum heating of said walls.

The invention will be readily understood from the following description of the accompanying drawing, in which:

Figure 1 is a side elevation of a heater constructed in accordance with the invention.

Fig. 2 is a vertical section on the line 22 of Fig. 1.

Fig. 3 is a top view of the burner.

Fig. 4 is a transverse section on the line 4-4 of Fig. 2.

Fig. 5 is a longitudinal section on the line 55 of Fig. 2.

The burner includes a base 1 of any suitable construction having the burner head 2 projecting above the same. and supported by the mixture conduit 3 depending from the burner head within the base. A usual mixing chamber 4: is mounted upon the conduit, and the fuel supply pipe 5 depends from the same so as to form a support for the burner elements. This pipe may be provided with any suitable cut off valve 6. The burner head 2 preferably has a top 7 mounted thereon as by being received within a flange, and this top is provided with a series of openings 8 for the discharge of products of combustion. An annular flange 9 is preferably also formed upon the top 7 for a purpose to be hereinafter described.

A series of chambers is arranged one above the other and having restricted openings connecting the same. The lowermost combustion chamber includes a wall 10 extending upwardly from a flange 11 received over the edge of base 1, and this combustion chamber encloses the burner head and its top to form an annular space 12 between the burner and the walls of the chamber. The

Serial No. 428,776.

wall 10 curves inwardly at its upper end and communicates with the wall 13 forming the next upper combustion chamber so as to form a restricted opening 14: between the two chambers.

' The wall 13 is first curved outwardly and then curves inwardly at its upper end to form a restricted opening 15 between the combustion chamber formed by wall 13 and the next upper combustion chamber formed by wall 16. In similar manner succeeding combustion chambers formed by walls 17 and 18 communicate with the next lower combustion chamber through restricted opening 19 and 20, and the walls forming said chambers first curve outwardly and then inwardly to the next upper chamber. It will be noted that each combustion chamber is of less. cross sectional area than the preceding combustion chamber, and that the uppermost combustion chamber terminates in a flue 21 to which may be connected a usual stove pipe.

Baflles are provided in the respective combustion chambers for causing the products of combustion rising through the chambers to be thrown outwardly against the chamber walls. As an instance of this arrangement, the baffles may be connected by rods 22 axially disposed, and received in the restricted openings connecting the combustion chambers. A rod 22 extending upwardly from the uppermost baffle is received in flue 21 and may be fixed to a spider 23 mounted upon the flue. The baflies received within the respective chambers are shown at 24, and the surfaces of these bafiies conform to the curvature of the walls forming the combustion chambers so as to provide spaces of uniform thickness between the combustion chamber walls and the baffles for the passage of the products of combustion from one chamber to the next through the restricted opening connecting the same. The lower ends of the bafiles just above the restricted openings connecting the chambers with the next lower chamber are preferably reversely curved as shown at 25 relative to the curvature of the remaining portions of the baffles, and the walls of the combustion chambers. By this arrangement the products of combustion entering a chamber through the restricted opening at its base are directed outwardly against the wall of the chamber, and will then pass through the space between the wall of the chamber and the baflie to the restricted opening at the top of the chamber.

The curved surface 25 of the lowermost battle is preferably provided with radial fins 26 adapted to impinge against the wall of the combustion chamber at its restricted opening in order to position rods 22 and the baffles against lateral'displacement, and the lower end of this curved portion of the lowermost baiile preferably rests upon the top of the burner head Within flange 9. The top of the burner head may be provided with a central squared lug 30 adapted to be received within a cooperating socket 31 in the base of the lowermost battle for preventing relative rotation of the parts.

The upper portion of the lowermost baflle is preferably made separate from its lower portion and is provided with internal lugs 32 received within the rim of the lower portion when the parts are assembled. By making the lowermost baffle separable as thus described, the various elements comprising the burner may be more readily assembled and conveniently manufactured.

It will be noted that the construction as thus described provides means whereby the products of combustion as they move upwardly through the succeeding combustion chambers will be directed against the walls of the chambers, so as to obtain maximum heating of the walls of the chambers which are so arranged as to afford maximum heat radiation therefrom.

Various changes may be made without departing from the spirit of the invention as claimed.

lVhat is claimed is:

A gas heater comprising a casing including superimposed spherical members having openings at their confronting sides to provide communication between the several members, said members graduating in diameter from the lowermost member to the up permost, a burner below the lowermost member, a plurality of battle members sustained one upon the other and upon said burner, said bafile members being of substantially spherical form and graduated in diameter from the lowermost member to the uppermost, with one member for each of the first members, and cooperating means carried by the burner and the lowermost battle member for locking all of the bafiie members against relative movement with respect to the casing.

In testimony whereof I have signed my name to this specification.

JAMES BEARD.

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