US374965A - Heating-furnace - Google Patents

Description

(No Model.) 2 Sheets-Sheet 1.

DE WITT 0. HOWARD & W. H. BURDEN,

HEATING FURNACE.

No. 374,965. Patented Dec. 20, 1887.

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(No Model.)

HEATING FURNACE.

No. 374,965. Patented Bed. 20. 1887. 9 a

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DE \VITT C. HOVARD AND WILLIAM H. BURDEN, OF CLEVELAND, OHIO.

HEATING-FURNACE.

SPECIFICATION forming part of Letters Patent No. 374,965, dated December 20, 1887.

Application filed November 23, 1886.

To all whom it may concern.-

Be it known that we, DE WITT G. HOWARD and WILLIAM H. BURDEN, citizens of the United States, residing at Cleveland, in the county of Guyahoga and State of Ohio, have invented certain new and useful Improvements in Heating-Furnaces; and we do hereby declare that the following is a full, clear, and exact description of the invention, which will enable others skilled in the art to which it appertains to make and use the same.

Our invention relates to heating-furnaces of the variety in which oil is burned to produce the heat; and the object of the invention is more especially to provide a furnace or stove that is adapted for heating streetcars, although it may also be used in private residences or offices, or wherever artificial heating is required.

The invention consists, broadly, of an oilreservoir provided with burners having suitable chimneys, a flanged base in which the cured to the base and perforated above and below for the ingress and egress of air, all as shown and described, and particularly pointed out in the claims.

Referring to the accompanying drawings, Figure l is a transverse section of a street-car, showing our improved furnace located centrally in the aisle. Fig. 2 is a vertical longitudinal section of the furnace. Fig. 3 is a Vertical crosssection thereof. Fig. 4c is an end elevation. Fig. 5 is a side elevation. Fig. 6 is a perspective of the reservoir with a part of the cover broken away to reveal the interior and the chimneys in position. Fig. 7 is aperspective of the flanged base. Fig. Sis a cross section of the furnace and base as united with the chimneys broken off. i

In the drawings, A represents the furnace as an entirety, consisting in detail of the reservoir B, chimneys 0, base D, and body part or dome E. llhe shape of the furnace isnot considered material to the invention and any preferred shape or form may be adopted; but the form shown, which is elliptical in horizontal section, as seen in the perspective view of the base, Fig. 7, is preferable when the furnace is used to heat street-cars, as thereby we are enabled to place the furnace in the center of the aisle and leave ample space at either Serial No. 219,551. (No model.)

side for the free passage of passengers. The reservoir 13 is shaped to correspond to the style of the furnace as here shown, and is shallow and flat, so as to occupy as little vertical space as possible and to prevent the undue agitation of the oil resulting from the movements of the car. As a measure of further precaution in this direction, ribs 1) are placed transversely on the inside of the reservoir, and, if deemed necessary, similar ribs may be run also in the other direction.

I) I) represent two Argand burners, selected for their heat-producing qualities, secured in the top of the reservoir and operating in the manner of burners in common use.

It of course is desirable to employ burners possessing the greatest heat producing capacity; but apart from this consideration one burner will serve as well as another.

- b is a guard plate or shield over the'top of the reservoir and raised slightly above it, so as to leave an air-space between them and protect the reservoir from the heat of the burners.

G C are sheet-metal chimneys braced near their top by conical deflectors 0, attached to the walls of the dome. As the entire structure herein described is placed bodily in the car or room and the products of combustion are discharged immediately into the room with no other escape, it is of the highest importance that the chimneys should be so constructed as to insure perfect combustion under all circumstances.

If the furnace be placed where it remains stationary and is not moved or shaken, the common lamp-chimney will suffice; but if it be used in a car where there is constant vibration and jarring the common chimney will not do at all, as the intermittent movements of the car will cause the furnace to smoke, produce imperfect combustion, and flll the carwith disagreeable odors.

c is a mica window in the side of the chimney to enable one to properly adjust the wick.

D is the base or pan of the furnace, having a vertical flange or rim, cl, about its sides and a series of cross-bars, (1, across its bottom. The flange is perforated at intervals, as at (i to admit air about the sides of the reservoir, and the cross-bars d are designed to lift the reservoir slightly above the base, so as to permit of air-circulation between them. To establish these conditions it is only necessary to make the reservoir slightly smaller than the base about the sides, which will form an airspace at that point and allow the air to flow in about and over the reservoir. Any equivalent of the cross-bars-such as ribs or studs on either the reservoir or the basewhich will separate the parts and produce a chamber between them will serve the purpose, and any suitable means may be employed to center and secure the reservoir in the base. Small brackets b are shown for fastening the base to the floor; but these may be substituted by screws through the bottom of the base or by other temporary fastenings.

E is the body or dome of the furnace, preferably secured to the base by a stovcpipe joint and catches e at the ends. Air is supplied to the body for the purposes of combustion through the openings d in the base and openings 0, covered by wire-gauze, at either side of the body.

6 are hand-holes for turning the wick-wheels, and are covered with mica plates sliding in guides-at the sides. Longitudinally through the center of. the top of the body or dome we place a pipe or tube, 6 preferably flattened, as shown, and extending between openings e in the ends of the dome. The chimneys approach this pipe within an inch, or thereabout, and the pipe has perforations 6 along its bottom to admit the heat which issues into the car or room from its ends. The pipe is of less width than the dome, so that the heated air may escape through perforations e, above the plane of the pipe, and 0 below it. The top of the dome is plain and closely covered, and there are no other openings about the sides than those above described. Handles e are provided at the ends to lift the dome on and off.

Having thus described our invention, what we claim, and desire to secure by Letters Patent, is-

1. In a heating-furnace for cars, a base portion-constructed to be temporarily fastened to the floor of the car and provided with an oilreservoir having partitions to prevent the rocking of the oil in the reservoir and with burners and chimneys, in combination with a metal dome oblong in cross-section and having openings about its top for the escape of heat, said dome being secured to the base by suitable fastening mechanism and bodilyremoved there from, substantially as set forth.

2. In combination with a car, a heatingfurnace comprising and combining the following elements: a base attached to the floor of the car, a partitioned oil-reservoir within the base provided with burners and chimneys, and a metallic dome set upon the base and secured thereto by temporary fastenings, said dome being perforated, substantially as shown and described, and inclosing the chimneys and burners and serving to distribute the heat, as set forth.

DE XVITT G. HOWVARD. W'ILLIAM H. BURDEN.

Witnesses:

H. T. FISHER, WM. M. MONROE.

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