US542650A - Stovepipe drum and furnace - Google Patents

Description

(No Model.)

J. H. MINGUS. STOVBPIPE DRUM AND FURNACB. No. 542,650. Y Patented July 16, 1895.

l QJ l Ni'rno STATES JonNgH. MiNeUs, or euri-mm CENTRE, IowA.

STOVEPIPE DRUM AND FURNACE.

SPECIFICATION forming part of Letters Patent No. 542,650, dated July 16, 1895.

Application filed December 18, 1894. Serial No. 532.24%. (No model.)

vis a specification.

This invention relates to an improvement in heating and radiating `drums adapted for use in connection with either sto'ves or furnaces.

The object of the present invention is to simplify and improve the construction of heating-drums with a view to rendering the same lighter'in construction, more efficient in practice, and to adapt the several parts thereof to be assembled, applied, and supported in a very simple, effective, and convenient manner.

To this end the invention consists in the combination with ahollow drum of an upper and alower supporting cross-bar, each provided with angular feet or extensions by means of which the cross-bars are riveted or otherwise secured within the interior of the drum, a hollow cylinder with closed ends interposed between and rivetedto said crossbars centrally of the drum for preventing the products of `combustion from passing through the center of the drum, and a spiral deliector passing one or more times around said central cylinder and between the latter and the inner wall of the drum, and secured at one end to the upper cross-bar and at its lower end to the lower cross-bar.

The invention further consists in certain features and details of construction and arrangement of parts, as hereinafter fully described, illustrated in the drawings, and pointed out in the claims.

,am In the accompanying drawings, Figure lis .t vertical section through a heating-drum with the interiorly-arranged cylinder, spiral detlector, and the supporting cross-bars therefor shown in elevation. Fig. 2 is a perspective view of the central cylinder spiral delector and the supporting cross-bars therefor7 showing the manner in which s aid parts are combined and supported.

Similar numerals of reference indicate corresponding parts in both figures of the drawings.

Referring to the drawings, l designates a hollow cylindrical drum, which may be made of any usual or preferred material and provided at or near either end with peripheral corrugations, forming shoulders for facilitating the application of the surrounding collars or other parts of a stove or furnace in a manner that will be readily understood. The 6o drum l is partiallyclosed ateither end or provided with a circular head having a central aperture through which-the products ot' combustion enter and escape from the drum.

Just above the bottom of the drum l is arranged a horizontal cross-bar 2 of metal or any suitable material, which is provided at either end with perforated feet or angular extensions 3, by means of which said cross-bar is adapted to be riveted or otherwise secured 73 y to the inner wall of the drum, as indicated in Fig. 1. A similar cross-bar t is located just beneath the upper head of the drum and is secured in place in the same manner asthe lower cross-bar 2. A centrally-arranged hol- 7 5 low cylinder 5 provided with closed ends at top and bottom is interposed between the cross-bars 2 and 4 and is riveted or otherwise secured to the latter, as shown. Aspiral deflector 6, preferably of sheet metal, extends 8o one or more times around the central cylinder 5 and is riveted or otherwise secured at its upper end to the upper cross-bar and at its lower end to the lower cross-bar. The spiral deflector is of a width adapting it to snugly'iill the space between the central cylinder and the inner wall of the drum,and is l secured at its inner edge to said central cylinder by means of angle plates or brackets 7 riveted to and firmly connectingthe deflector 9o and the central cylinder in the manner shown.

By means of the construction above described the products of combustion entering at the lower aperture of the drum are prevented from passing through the center of the drum by reason of the presence of the cylindcr 5 closed` atits ends, as described, said products of combustion being thereby caused to pass upwardly around said cylinder and between the same and the inner wall of the rco drum. The upward progress of the heated air is retarded by the spiral deiiector 6, and furthermore said heated air is thereby caused to travel around the central cylinder and within the drum, thereby utilizing the heated air to a greater extent than where such spiral detlector is not used.y

By reason of the construction above described and the particular manner in which the several .parts of the device are arranged and combined, it will be apparent that the upper and lower cross-bars described support both the central cylinder and the spiral deflector, which are riveted thereto, so that said parts are made, as it were, in one piece and are adapted to be inserted or removed as a whole within and from the interior of the surrounding drum.

The construction described combines simplicity, lightness, and cheapness of manufacture, and will be found very economical and efficient in practice, affording a thorough circulation of the heated air within the drum and the radiation of the heat therefrom.

Having thus described the invention, what is claimed as new, and desired to be secured the combination with a hollow cylindrical drum, of the upper and lower horizontal cross bars provided with perforated feet at either end by means of which they are riveted within the drum and located a sufficient distance from the ends thereof to afford free spaces at the top and bottom of the drum, a centrally arranged hollow metallic cylinder closed at its ends and interposed between and

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