US101676A - Improvement in summer cooking-furnace - Google Patents

Description

I R. 0. STEVENSON.

Portable Furnace.

No. 101,676. Patented April 5, 1870."

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Letters Patent No. 101,676, dated Ajlirz'l 5, 1870.

IMPROVEMENT IN SUMMER COOKING-FURNACE.

The Schedule referred to in these Letters Patent and making part of the same To all whom it may concern Be it known that I, RUFUs O. STEvnssox, of Baltimore, in the county of Baltinore and State of Maryland, have invented a new and valuable Improvement in Summer Cooking-Furnaces; and I do hereby declare that the following is a full, clear, and exact description of the construction and operation of the same, reference being had to the annexed drawing making a part of this specification, and to the letters and figures of reference marked thereon.

Figure 1 of the drawing isa representation of a vertical section of my furnace;

Figure 2 is a view of the cover;

Figure 3 is a perspective view of the disk D and tube E; and

Figure 4 is a view of thel cylinder B, all of which are hereinatter described.

My invent-ion relates to means for cooking, heating sad-irods,'and other similar domestic activities, and consists in the construction and novel arrangement of devices by which such domestic labor may lbe carried on in an open yard or summer kitchen without the aid of the ordinary cooking-stove, and which s aid devices may also'be made to serve as important appendages to a cooking-stove when desirable so to do.v

A of the drawing represents an outmwcyliluler, with openings at its bottom, marked c, for the admission of air. i,

B represents an interior cylinder, constructed in the 'funn of an inverted frustum of a cone, and having its lower end slotted, as shown.

The top of this cylinder B has a circular Hauch, a,

by which it rests upon the top of cylinder A. This cylinder B is of less length than cylinder A, as the drawing represent, and at its lower end it has a lianch turned inward to form a rest and support for the disk D, next mentioned.

The disk D 'is formed in theshape of a slotted plate, of a diameter adapted to the interior of the bottom of cylinder B, upon the lower flanch of which itl rests, and from which it is removable' at will.

E is a perforated conical tube attached 'firmly upon the disk D, as shown, and extends upward therefrom to within' three inches, more orless, from the top of cylinder B. There is an openingr in the center of disk D, of the size ofthe lower .end o'f this tube, and over which opening said tube is attached.

The letter H represents my combined cover, damper, and griddle. It consistsin a disk that rests upon the topof cylinders A and B, as shown, and is removable therefrom. This disk is cnt out in the manner shown, forming a series of slots.

Above this disk I affix a slotted wheel with radiating arms, adapted for opening or closing the slots in the disk at will, in the manner of registers for heaters. This wheel marked K ou the drawing.

To operate mydevice, I arrange the several parts together in the manner shown on iig. l, and build a coal iire upon the disk D.

I can then use the cover H as a griddle for broiling, or can remove it if desirable, and place a kettle in its stead.

The tube E serves to preventthe coal from packing, while its perforations, in conjunction with the openings c and the slots iu disk D and cyliuderB, serve to supply the requisite air to the burning fuel.

My apparatus is also adapted for use in an ordinary cooking-stove, being usedin a boiler-hole, or it may be used in an open tire-place, when it is desirable, to prevent heat from passing into the apartment.

`In using it in a boiler-hole, I tirstmake the fire as great as necessary, and afterward arrange it in the boiler-hole, when the draught of -air will pass downward and out through the stove-pipe.

The slots lin the side of the tire-pot, and the perforations c in the wall'of the central tube, are designed to permit a thorough draught to all parts ofthe coalbed, and at the saine time to prevent the walls of the lire-pot and central tube from being rapidly burned out.

, During the operation of kindling, the register at the top is opened, and adownward draught is at once created through thc openings above mentioned, and through the removable grateat the bottom.. After the tire is thoroughly kindled, the register may be totally or partially closed, and the heat allowed -to ascend for the purposeof cooking'. Ihe door of the stove should then be opened to supply air to the tire.

I cla-ini as my invention- In combination with a register-cover H, the lire-pot B, havingside slots I, and removable grate D, having central conical tube E open at both ends, and provided with the pcrtbrations c, as specified.

In testimony that I claim the above, I have hercunto subscribed my name in the presence of two witnesses. II'FLS 0. SIEVEXSOX. \\'itncsscs:

lil. ILMAs, I). D. Kann.

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