US1380734A

US1380734A - Hot-air furnace

Info

Publication number: US1380734A
Application number: US327712A
Authority: US
Inventors: Maximilian J Otto
Original assignee: Individual
Current assignee: Individual
Priority date: 1919-10-01
Filing date: 1919-10-01
Publication date: 1921-06-07
Anticipated expiration: 1938-06-07

Description

' M. l. OTTO.

HOT AIR FURNACE.

APPLICATION FILED OCT. 1, 1919.;

1,380,734. Patented June 7, 1921.

INVENTOR! ATTORNEY.

MAXIMILIAN J. OTTO, OF NEW YORK, N. Y.

HOT-AIR FURNACE.

Application filed October 1, 1919.

naces, of which the following is a description.

This invention has reference to hot air stoves or furnaces and, particularly, to stoves adapted to give heat through the medium of gas or oil, and convey the same to either the floors above or to radiate its heat in the room in which the stove stands through the medium of long lengths of heat conducting pipes.

Among the objects of my invention may be noted the following: to provide means by which hot air generated in a small, cylindrical gas or oil stove may be conveyed to, and distributed in, one or more rooms above that in which the heater stands and at the same time have the hot air generated tempered by moisture commingled with the hot air and reduced by the latter to a gaseous, invisible fluid; to provide means by which hot air, generated in a gas or other fuel burner, may be conveyed to different parts of the room in which the heater stands and tempered by the admixture with the hot air of a moist vapor; to provide means by which a hot air furnace may produce its own moisture-laden heat and conduct the samev to distantpoints, as may be required; and to provide a simple, economical, cheaply constructed, eflicacious device by means of which the foregoing objects may be accomplished,

together with others-which will be pointed out during the course of this description.

In order that my invention may be clearly understood, I have provided drawings wherein:

Figure 1 is a sectional elevation of a hot' air stove or furnace constructed and disposed in accordance with my invention; and Flg. 2 is an elevation showing, a structure wherein the heat generated may be radiated 7 into the room in which the heater stands and at the same time distributed to distant points in the same room throughthe medium of radiatingpipes or coils, the latter being broken at several points owing to the limita-' tions of th sheet. 7

Referring to the drawings, the numeral 1,

in Fig. 1, indicates the floor of a room or cel a n which the he er m y e s t r Specification of Letters Patent.

erected, 2 being the ceiling, and also the floor of one or more rooms above, in which registers or radiators, conventionally shown at 3, may be set in any suitable manner for the purpose of conveying the heat directly to the room or rooms above. The small heater, the cylindrical casing of which is indicated by 4, may be of any acceptable or suitable type, such as, for example, that shown in my Patent No. 1,312,804, granted Aug. 12, 1919, and in which heat conducting tubes 5 are located to convey the heat from the burner 6 directly to a chamber 7. The cylindrical casing 4 may be perforated or provided with openings 8, in order that the heat generated by the burner may, in some measure, be radiated intothe room in which the heater stands. The heating medium, or coil 6, may be a gas burner or oil burner; but, in the instance shown, it is a gas burner of the type shown in my said patent connected to a source of supply by the pipe 9, the supply to the stove being controlled by the cook 10. At the bottom of the cylindrical casing 4, a perforated heating plate 11 is provided through which the heat from the burner may enter the casing and be radiated from the latter into the room in which the stove stands, and the heat from the burner is also conveyed directly through the tubes 5 into the chamber 7 above. The chamber 7'is provided in a frusto-conical casing or base 13v rests upon an outturned flange 15 at the top of the casing 4, thus giving a solid and substantial seat and connection H between the hot air drum 12 and the cylindrical casing 4; but, it will be understood that the hot air drum 12 can readily be lifted and removed from the cylindrical casing 4, when desired. The cylindrical ca ing, at the top of the tubes 5, is provided with a perforated diaphragm 16 through which the heat from the casing 4 may also enter the chamber, and which aids in supporting the tubes. 4

The drum 12 is apertured at a plurality of polnts near its top, in which are set heat conducting pipes 1'7 extended in any suitable direction, but preferably alwaystending upwardly, to connect with the radiators 3. At some point in the pipes 17, dampers 18 are provided, preferably located as shown, for reason presently described. The top Luz:

of the drum 12 is perforated,-as at 19, and below the same is provided with a damper also correspondingly perforated, said damper being adapted to rest upon the flange or collar 21 and to be shifted circularly to close or open the apertures extending through the same and the top of the drum 12, so as to control the passage of the heat in the chamber 7 to the bottom of the steam or water boiler 22, which is adapted to set on the top of the drum 12 and have the water therein heated to produce steam. A heavy cover 23 is applied to the steam boiler or chest, and the latter, near its top, is provided with outlet pipes 24 connected by sliding sleeve couplings 25 to short pipes 26 tapped into the pipes 17. The dampers 18 are preferably located above the point of generation and admission of steam, since, when the heat is cut oil and steaming may continue, the steam should be cut off from the radiators by turning the dampers 18.

From the foregoing description, it will be seen. that my hot air furnace comprises an ordinary, small, sheet-iron, cylindrical heater, such as is usually used for oil or gas burners, and which is por'able and seldom more that 2'}- feet high and 12'to 18 inches in diameter, and my invention consists in the adaptation of such a heater or burner to the heating of large rooms or spaces as set forth above and shown in Fig. 1 in an economical, rapid, effective manner, and

without the usual accompaniment of stationary hot air furnaces, such as dust, dirt, soot and dry air, and I have found that my small cylindrical heater covered by my aforesaid patent, when combined with the means shown in Fig. 1, as well as in Fig. 2, produces an exceedingly effective furnace which will thoroughly heat not only the room in which it stands, but one or more rooms above or adjacent the same, and by combining a steam drum or tank therewith and connecting the same to the hot air flues, the air is moistened quite effectively, thus eliminating the objection to the usual hot air furnaces, which produce dry, vitiated air which is quite objectionable from many standpoints, as is well known.

In Fig. 2, I have shown an embodiment of my invention adapted for heating very cffectively unusually large rooms, even to the far corners, as may be desired. In this embodiment of my invention, thecylindrical heater or casing 27 may be of unperforated sheet iron, the heat from which will radiate into the room in which the heater stands. The hot air drum or chamber 12 has a plurality of pipes 17 connected therewith, and.

said pipes areconnected with pipe extensions or coils 28, which may be as extensive as desired and carried to any point or position' in the room. The heater is shown as set, for example, in a hearth or lire-place 29, and a part of the pipe or coil 28 is shown as coupled with an extension 30 tapped into the chimney, as at 31. The other features of the furnace are the same as in Fig. 1, and such features are respectively, indicated by like numerals. With this embodiment of my invention, i am able to extend the coils or pipes 28 into any part of the room in which the heater stands or in the rooms above, if desired, thus effectively heating said rooms even to the far corners.

It will be readily understood that, when the steamer is not required, it may be disconnected by sliding the couplings 25 to one side so as to release the pipes 24, or the reverse so as to release the pipes 27, and the steamer may then be lifted from the drum 12. On the other hand, when it is desired to eliminate the steaming feature or reduce the quantity of the same, the damper 20 may be closed. the heat from any of the pipes 17, this may be done by closing the dampers 18.

Having thus described my inventiomwhat I claim and desire to secure by Letters Patent is:

1. A hot air furnace comprising a cylindrical heating member having mounted thereon a hot air drum; means for generating heat at or near the bottom of the said"v member; means for conveying the heat to the hot air drum; a steam drum mounted on the hot air drum; a damper interposed between the steam drum and the hot air drum; conduits extending from the hotair drum; conduits extending from the steam drum; and means for coupling the two conduits, whereby thehot air from the air drum and the steam from the steam drum may be commingled and distributed.

2. A hot air furnace consisting of a cylindrical casing; a source of heat arranged at the bottom of the casing; a drum or chamber mounted on the top of the casing; a plurality of heat conveying tubes extending between the source. of heat and the drum; a plurality of conduits tapped into the, drum for conveying the heatthereof to distant points; a, steam. drum mounted onthe hot air drum; a coupling extending from said steam drum to the hot air conduits whereby tomix steam with the hot :air'emanating from the hot air drum; meanswhereby the steam drum may be demounted from the hot air drum; and means whereby the said 7 coupling may be detached.v .MAXIMILIAN J. OTTO.

When it is desired to cut off p