US2015793A - Heating drum - Google Patents

Heating drum Download PDF

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Publication number
US2015793A
US2015793A US2015793DA US2015793A US 2015793 A US2015793 A US 2015793A US 2015793D A US2015793D A US 2015793DA US 2015793 A US2015793 A US 2015793A
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Prior art keywords
drum
combustion
air
products
opening
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    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24HEATING; RANGES; VENTILATING
    • F24CDOMESTIC STOVES OR RANGESĀ ; DETAILS OF DOMESTIC STOVES OR RANGES, OF GENERAL APPLICATION
    • F24C15/00Details
    • F24C15/001Details arrangements for discharging combustion gases
    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10STECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S165/00Heat exchange
    • Y10S165/092Heat exchange with valve or movable deflector for heat exchange fluid flow
    • Y10S165/109Heat exchange with valve or movable deflector for heat exchange fluid flow with by-pass of heat exchanger or heat exchanger section
    • Y10S165/11Bypass within or surrounds heat exchanger
    • Y10S165/111Heat exchanger enclosing a fluid conduit confining second heat exchange fluid
    • Y10S165/112Stove pipe drum having air draft passage for heating ambient air

Description

Oct. l, 1935. s. G. GILLELAND .HEATING DRUM Filed Sept. 26, 1954 liI Patented Oct. 1, 1935 ITED ST'EES 1 Claim.
This invention relates to heating appliances of that class which employ drums between the combustion chamber and chimney for radiation of heat and for heating air and circulating it 5 within the room occupied by the drum, and my object is to produce a drum as an attachment for a heating or cook stove, which operates efciently and is of simple, durable and economical construction. A further object is to: produce a drum in which the products of combustion are, in normal operation, compelled at their point of maximum heat, to impinge against and travel downward upon air ducts, so that the temperature of the air circulating up through the ducts shall be highest at or near the upper or discharge ends of the ducts and relatively low at the lower ends of the ducts, it being noted that by this opposed flo-w of the products of combustion and air, a
smaller proportion of the heat units of the fuel burned, are lost through the chimney, and the heating of a room is not only accelerated, but effected at a lesser cost of fuel.
More speciiically, my object is to produce a drum containing air ducts, running from bottom to top, an inlet opening forward and a discharge opening rearward of the air ducts, and a damper adjustable to permit the products of combustion to pass directly from the inlet to the discharge opening in the desired volume for starting operation, or to compel practically the entire volume to descend within the drum for more extended and longer contact with the air ducts, and for therefore more highly heating and accelerating the circulation of air up through such ducts.
To accomplish the objectives mentioned, the invention consists in certain novel and useful features of construction and organization as hereinafter described and claimed; and in order that it may be fully understood, reference is to be had to drawing, in which:-
Figure 1 is a broken top plan view of a heating stove embodying the invention.
Figure 2 is a vertical section on the line II`II of Figure 1.
Figure 3 is a plan view with the top plate omitted.
Figure 4 is a vertical cross section on the line IV--IV of Figure 1. i
Figure 5 is a perspective View of the form the drum may take when used as an attachment for a stove'.
Referring to the drawing in detail, I indicates a drum of rectangular or other suitable form,
adapted to constitute an integral part of an attachment to a heating stove or as a heating attachment for a cook stove. In either use, the drum is provided with a heat chamber 2 and inlet and discharge openings 3 and il, for the flow of the products of combustion from the former ,5; to the latter through the heat chamber, and in the preferred construction, the opening 3 is in proximity to the top of the drum and the opening 4 is in the top itself. Y
A damper is disposed within the drum and is 10 adjustable to accommodate a direct flow of products of combustion from the inlet to the discharge opening or to prevent a direct ilow and establish an indirect iiow between said openings. As shown, the damper 5 is spaced above the bot- 15 tom of the drum and at its lower end is secured upon a cross rod 6, journaled in the sides of the drum so that by grasping one end, it can be turned from a vertical to an inclined position. In the former position, it contacts the top of the 20 drum to shut off direct flow of products of combustion from the inlet to the discharge opening. In the inclined position, see dotted lines, it opens up communication between said opening to accommodate the direct flow mentioned. By spac- 25 ing the damper from the bottom of the drum an intermediate opening 'l is provided through which the products of combustion must pass when the direct ilow is prevented by the damper when occupying a vertical or substantially vertical or closed'position. It will thus be apparent that under the condition last mentioned, the products of combustion are compelled to travel downward through the drum from the inlet to the intermediate opening. 35
The drum is provided with one or more air ducts 8 for circulating air through the heat chamber from a point below to a point above the drum, this travel of air being counter or opposite to that of the flow of the products of combustion, especially when the damper is in closed position. As a result of thus providing opposed flows, the products of combustion lose heat in their downward travel while the heating of the air is intensied in its upward flow. It has been found that 45 practically all of the heat units of the products of combustion as the latter enters the drum are extracted by the time escape is made through the discharge opening and that in consequence, the temperature of a room can be raised to a higher degree and in less time and at less cost for fuel, than by any heating appliance or drum using the same character of fuel, through which the air flows in the same direction or merely cross-wise of the travel of the products Aof combustion. For convenience in cleaning the inte- 'rior of the drum of adhering soot, the back wall has an opening 9 at its lower end, and a door or f Y drum, the back wall of the lire boX I I, terminates shortV of the top plate to provide the inlet opening 3. The stove may be adapted for burning solid or other types of fuel, and for burning wood or coal, preferably has a large door-controlled opening I2, a grate I3, a bottom draft control vmeans, such as a slide I4, and a top draft control means, such as a slide I5. There will also be supporting legs I6 or the like to provide for free circulation of air up through the air ducts.
From the above description and drawing, it will be apparent that the invention possesses the features of advantage set forth as objectives, and
that the structure may be modified in various particulars without departure from the principle of construction involved and the scope of the appended claim.
I claimz- An air heating drum, comprising a casing having spaced inlet and outlet openings in its upper portion for products of combustion, and a series of air-ducts extending through the casing between said openings and open to receive air below and discharge it above the casing, and a damper within and pivoted at its lower end to opposite side walls of the casing above the bottom of the latter and in a vertical plane between the `air ducts and said outlet opening, and adapted to be swung to dispose its upper end against the back wall of the casing to prevent the flow of the products of combustion to the outlet opening by passage back of the damper, or to stand vertically back of the air ducts and form a partition compelling the products ofy combustion to reach the outlet opening only by passing below and then upwardly at the rear side of the damper.
SAMUEL G. GILLELAND.
US2015793D Heating drum Expired - Lifetime US2015793A (en)

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