US1449312A - Gas heater - Google Patents

Description

Mar.- 20, 1923. 1,449,312 J. BEARD GAS HEATER Filed July 21, 1921 Patented Mar. 20, 1923.

UKTED STATES JAMES BEARD, 0F PASADENA, CALIFORNIA.

ens HEATER.

Application filed July 21, 1921.

T 0 all whom it may concern Be it known that 1, JAMES BEARD, a subect of the King of Great Britain, residing at Pasadena, in the county of Los Angeles and State of California, have invented new and useful Improvements in Gas Heaters, of which the following is a specification.

My invention relates generally to heating devices, and more particularly to a heater that is adapted for general household purposes and which utilizes gas as fuel.

The principal objects of my invention are to provide a relatively simple and practical construction that has a maximum heating capacity for the amount of fuel consumed; to provide for the superheating of the gaseous fuel before the same is ignited; to provide a construction that will eliminate, in so far as possible, the condensation of any part of the gaseous fuel in order to obtain complete combustion of all the fuel and consequently consumption of carbon monoxide and carbon dioxide gases, as well as all other noxious and objectionable products of combustion.

Further objects of my invention are to provide an improved form of gaseous fuel heater that is of relatively simple structure, capable of being easily and cheaply produced, and which will be very effective in proved construction.

performing its intended functions.

With the foregoing and other objects in view, my invention consists in certain novel features of construction and arrangement of parts that will be hereinafter more fully described and claimed and illustrated in the accompanying drawing, in which:

Figure 1 is a vertical section taken through a gas burning heater of my im- Fig. 2 is a horizontal section taken on ale line 2-2 of Fig. 1.

Fig. 3 is a horizontal section taken on the line 3-3 of Fig. 1.

Fig. 4 is a horizontal section taken on the line 4- 1 of Fig. 1.

Referring by numerals to the accompanying drawing which illustrate a practical embodiment of my invention, 10 designates the base of the heater which is in the form of a cast metal ring and provided with suit able supports 11, whereby it is maintained a short distance above'the floor. Supported upon this base ring is a vertically disposed cylinder 12 that forms the outer shell or Serial No. 486,35.

body of the heater, and the upper end of said cylinder is closed by a Suitable cap 13.

Formed through the wall of the cylinder immediately above the base ring 10 isa series of air inlet openings 14:, and formed through the upper portion of the wall of cylinder 12 immediately below the cap 13 s an annular row of heated air outlet openlugs 15. Arranged within the cylinder 12 and supported by base ring 10 is a vertically disposed hollow cylinder 16 preferably of cast metal, the upper end of which is closedby a removable plate 17. The diameter of this inner cylinder 16 is somewhat less than the internal diameter of cylinder 12, thereby providing between, the cyllnders an annular air heating space 18 through which passes the air that enters the heater through openings 14. I

Supported in any suitable manner in the center of the opening in base ring 10 is a short vertically disposed cylinder 19, the:

chamber 20 within which serves as a mixing chamber for gas and alr. The lower end of this cylinder 19 is closed by a plate 21- in which is formed a series of openings 22, and arranged for rotary movement on the under side of said plate is adisc 23 having openings 24 that are. adapted to register with said openings. The construction thus described provides for the accurate regulation of the amount of air admitted to the mixing chamber 20. Leading through suitably formed apertures in plates 21 and 23 is a gas supply pipe G in which is located a suitable control valve V.

Formed integral with, or fixed to the top of, cylinder 19 is a bowl-shaped member 25 that forms the lower half of the gaseous fuel burner, the upper half thereofbeing in the form of an inverted bowl-shaped member 26, the lower'edge of which rests directly upon the upper edge of member 25,

and the lower edge of said upper member 19 and extending across the mixing chamber 20 therein is a reticulated member 28,

preferably a section of wire netting of rela tively fine mesh. Positioned on top of the upper member 26 of the gaseous fuel burner is a vertically disposed tubular member 29, the annular wall of which curves outwardly toward its upper end, and formed integral with the outer face of this curved wall is a ring plate 32. provides a chamber, indicated at 36.

series of radially arranged vertically disposed ribs 30. Supported upon a flange 31 that projects inwardly from the wall of cylinder 16 is the outer edge of a horizontally disposed ring plate 32, the opening in the center of which receives the curved annular wall 29 and the vertical ribs 30.

Seated in the center of the upper member 26 of the superheater is the lower end of a supporting member 33 that is made up of a series of -short rod sections, the adjacent ends of which are threaded to receive nuts 34, and which latter serve to tie the rod sections to each other. The upper end of the upper one of these rod sections is detachably connected to the center of disc 17.

Arranged immediately above the curved tubular member 29 and supported by the lowermost one of the nuts 34, is a hollow dome-shaped member 35, the lower edge of which terminates a short distance above The interior of the member Suitably supported within the cylinder 16 a short distance above the dome-shaped 7 member 35 is a ring plate 37, and supported on the upright member 33 a short distance above said ring plate is a hollow domeshaped member 38, the space'within which constitutes a secondary combustion chamber 39. Suitably supported on cylinder 16 immediately above the dome-shaped member 38 is a ring plate 40, and supported on member 33 above said last mentioned ring plate is a hollow dome-shaped member 4-1, the space within which constitutes a tertiary combustion chamber 42.

Extending outwardly from the upper end of cylinder 16 is a short tubular outlet 43, the outer end thereof communicating with an opening 44 in the outer cylinder 12, and secured to said outer cylinder immediately over said opening is a horizontally disposed housing 45 having a depending portion 4.6 that is adapted to contain water. Formed in the outer portion ot the bottom of housing45 and immediately beyond the water reservoir is an outlet opening 47.

In the practical use of my improved heater, valve V is open to admit gas into mixing chamber 2O, through supply pipe G,

face of the annular member 29 so as to be directed upwardly of the ring 32 and out Wardly beneath the dome 35. The flames now continue to ascend around the dome 35, through the plate 3'? and around the dome 38, whence they pass through the plate 40 and around the dome 41.

The heat from the combustion of the gaseous fuel maintains member 29 and the burner comprising parts 25 and 26 in a highly heated condition thus heating to a relatively high degree the gaseous fuel before the same reaches the combustion chamber.

1 have demonstrated in practice that under normal conditions approximately 35% of the combustible gases in the fuel are consumed within the combustion chamber 36, and the remainder of the unconsumed gases pass upwardly through the opening in ring plate 37 into the secondary combustion chamber 39 where a further portion of the unburned gases are consumed. The remainder of the unburned gases and proclucts of combustion pass upward through the opening in ring plate 40, and final combustion of all of the gases takes place in the third combustion chamber 42.

By providing the dome- shaped members 35, 38 and 41, the combustible gases are effectually prevented from condensing while passing through the heater, and as said dome-shaped members are highly .heated while the device is in operation, the gases in passing from one dome to another are maintained at relatively high degrees of temperatures so that as said gases are consumed in the successive combustion chambers, the result will be perfect combustion of all of the gases and consequently obtaining the maximum efliciency of the heat units contained in the gasdelivered to the heater through supply pipe Gr.

Reservoir 46 is filled with water to which has been added'a certain percentage of lime thus forming a solution that has an affinity for carbon monoxide and carbon dioxide gases. The products of combustion leaving the upper end of the cylinder 16 pass over this solution in order to reach the discharge opening 47, and as a result the carbon monoxide and carbon dioxide gases will be absorbed and precipitated within the solution contained in the reservoir.

Thus it will be seen that I have produced a gas burning heating device that is effective in bringing about perfect combustion of the gaseous fuel, and which desirable action is attained through the use of the burner and the series of dome-shaped mem bers which are effective in reducing condensation of the gases as they'pass from one point of combustion to another. As a result of such perfect combustion, practically all of the heat units contained in the gaseous fuel are utilized in the production of heat, and the reservoir located at the outlet for the burned products of combustion provides means for eliminating all noxious gases that might otherwise escape into the room in which the heating device is located.

It will be understood that minor changes in size, form and construction of the various parts of my improved gas heater may be made and substituted for those herein shown and described Without departing from the spirit of my invention, the scope of which is set forth in the appended claims.

I claim as my invention:

1. A gas heater comprisinga cylinder, a cover for the cylinder, a rod depending from the cover and disposed within the cylinder, a plurality of hollow members sustained in spaced relation upon said rod, plates supported within the cylinder and interposed between the hollow members, and a burner sustained on the rod and disposed below the lowermost plate.

2. A gas heater comprising concentric cylinders, the inner cylinder being formed at intervals along its length with interiorly arranged flanges, plates supported on the flanges, dome-shaped members sustained in spaced relation to each other within the inner cylinder, there being one member for each of the plates, said plates being formed with openings of a diameter less than the diameter of the domes, and a burner below the lowermost plate having peripheral jet openings, and an annular member supported on the burner and disposed within the opening of the adjacent plate, said annular member comprising a tubular body of tapered diameter, and

flanges extending radially from the body.

3. A gas heater comprising concentric cylinders, the inner cylinder being formed at intervals along its length with interiorly arranged flanges, plates supported on the flanges, dome-shaped members sustained in spaced relation to each other within the inner cylinder, there being one member for each of the plates, said plates being formed with openings of a diameter less than the diameter of the domes, and a burner below the lowermost plate having peripheral jet openings for the purpose described.

4. A gas heater comprising concentric cylinders, the inner cylinder being formed at intervals along its length with interiorly arranged flanges, plates supported on the flanges, dome shaped members sustained in spaced relation to each other within the inner cylinder, there being one member for each of the plates, said plates being formed with openings of a diameter less than the diameter of the domes, and a burner below the lowermost plate having peripheral jet openings, and an annular member sup ported on the burner and disposed within the opening of the adjacent plate for the purpose described.

5. A gas heater comprising concentric cylinders, annular flanges formed at intervals within the inner cylinder, ring plates supported on the flanges, a cover for the inner cylinder, a rod depending from the cover, a plurality of dome shaped members one for each of said plates, each of said members being disposed above and in spaced relation to the corresponding plate, means on the rod for sustaining the members in proper position with respect to the plates, a burner below the lowermost plate sustained on said rod, and a mixing chamber carried by the burner.

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

JAMES BEARD.

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