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Publication numberUS997326 A
Publication typeGrant
Publication dateJul 11, 1911
Filing dateMar 13, 1911
Priority dateMar 13, 1911
Publication numberUS 997326 A, US 997326A, US-A-997326, US997326 A, US997326A
InventorsJoseph Rademacher
Original AssigneeJoseph Rademacher
Export CitationBiBTeX, EndNote, RefMan
External Links: USPTO, USPTO Assignment, Espacenet
US 997326 A
Abstract  available in
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Claims  available in
Description  (OCR text may contain errors)




Patented July 11, 1911.





To all whom it may concern:

Be it known that I, JOSEPH RADEMACHER, a citizen of the United States, residing in Milwaukee, in the county of Milwaukee and State of Visconsin, have invented new and useful Improvements in Charcoal-Stoves, of which the following is a description, reference being had to the accompanying drawings, which are a part of this specification.

This invention has for its object to provide a stove for burning charcoal to be used as an auxiliary to a coal range or other heater by means of which a quick fire may be produced for cooking or other purposes at times when the range or other heater is not in use.

An object of the invention is to provide a pair of fire pots having draft connection with a common opening in the bottom of the device through which the suction from the chimney of the range or other heater will be effective upon either or both of the said fire pots.

At times when the ordinary coal-burning kitchen ranges and similar heaters are not in daily use, as during the summer months, it is a source of inconvenience and delay to have to build a temporary fire therein for cooking meals, hence the present invention has been designed as an attachment or adjunct to such coal range or heater to be merely placed thereon over one of the lid openings where the draft connection with the chimney will be available to the outlet opening of the charcoal stove, when a charcoal fire may be very quickly built which will give ample heat for cooking purposes and which will quickly die out when the cookin operation is completed and so will not un uly heat the room.

With the above and other objects in view the invention consists in the charcoal stove herein claimed its parts and combinations of parts and all equivalents.

Referring to the accompanying drawings in which like characters of reference indicate the same parts in the different views: Figure 1 is a plan view of a charcoal stove constructed in, accordance with this invention, a portion of the cover thereof being broken away for clearness of illustration; Fig. 2 is a longitudinal sectional view thereof; Fig. 3 is an endelevation thereof; and, Fig. 4 is a transverse sectional view thereof on the plane of line H of Fig. 2.

In these drawings 10 indicates a base or Specification of Letters Patent.

Application filed March 13, 1911.

Patented July 11, 1911. Serial No. 613,996.

casing comprising a bottom with a central opening 11 and side walls upstanding therefrom with end openings 12. A top plate 13 fits upon the base or casing and is provided with a pair of openings containing the usual stove lids 14. An inner casing forms a pair of somewhat conical fire pots 15 connected together by parallel walls 16 provided with flanges to form grooves between them' for receiving a central partition 17 and sliding gates 18, the latter extending only part way between the bottom and the top plate so as to normally allow of a fine space above them for the passage of gases from the fire pots to the flues formed be tween said gates and the partition 17. The gases pass out through the opening 11, as shown by arrows in Fig. 2. The gates 18 are slidable so that they may be lifted when desired to permit the ashes contained in the fire pots to be ejected through the opening 11 into the fire box of the range 19 or otherheater upon which the charcoal stove is placed, said opening 11 of the charcoal stove being positioned above a lid opening 20 of the range.

The walls of the fire pots 15 which are opposite the gates 18 are provided with slots 21 through which air may be drawn for supporting combustion, such air being free to enter the casing through openings 12, as shown by the arrows in Fig. 2, when the swinging doors 22 for said openings are held in their open position. The doors 22 are slidable on their pivotal connections so as to engage stop shoulders for holding them open in a manner well known in the art. The inner casing forming the fire pots is surrounded by a sheet metal jacket 23 which remains vertical instead of sloping with the inclined walls at the ends of the fire pots and is cut away where it surrounds the slots 21 so as to afford ample passage for the draft, but at its cutaway portion, it extends below the upper ends of the slots 21 and below the openings 12 so as to constitute a spark arrester to prevent sparks which fly through the openings 21 from passing out of the openings 12. With the guard flying sparks will be deflected to the bottom of the casing and danger of fire will be avoided. This jacket 23 further serves as a wall for an air space surrounding the fire pots to provide heat insulation therefor and the space between the jacket 23 and the outer casing is closed at each side of the stove by partitions 24: extending thereacross so that the draft may not be interfered with when one fire pot only is being used.

In operation the charcoal stove is placed upon a coal range or other heater with the opening 11 registering with one of the lid openings of such range or heater and a charcoal fire is built in one or both of the fire pots, the draft from the chimney of the range or heater drawing the smoke and gases from the fire through the fiues as indicated by arrows and fresh air being supplied to the fire through the open doors 22 and the slots 21. When one fire pot only is desired to be used, the doors 22 of the other fire pot are closed, thus shutting ofi the passage of air through such other fire pot which might act as a check draft upon the fire, and the partitions 24L prevent the passage of air around the inner casing from the open doors 22 to the opening 11 by way of the unused fire pot. The heat may be maintained as long as desired by regulating the supply of fuel for the purpose, and when the cooking operation is completed, the fire very soon dies out so that the room is not unduly heated, as would be the case with a coal fire. By sliding the gates 18 in the grooves in which they fit, the ashes in the fire pots may be discharged through the opening 11 into the fire boX of the range or heater below.

The charcoal stove of this invention does not require alteration of the range or heater on which it is used, and by simply removing the charcoal stove, the range or heater may be used in the ordinary manner.

What I claim as new and desire to secure by Letters Patent is:

1. A charcoal stove, comprising an outer casing having an opening in its bottom, said casing being adapted to be seated upon a range or the like with the opening communicating with an opening in said range or the like, an inner casing within the outer casing forming a pair of fire pots with connecting walls, said connecting walls forming flue spaces between them leading from the fire pots to the opening in the bottom of the outer casing, a partition between said connecting walls separating the flue space of one fire pot from the flue space of the other fire pot, and sliding gates also located between the connecting walls and normally preventing the contents of the fire pots from falling into the flue spaces, but capable of being moved for permitting the ashes of the fire pots being discharged through the opening in the bottom of the outer casing.

2. A charcoal stove, comprising an outer casing having an opening in its bottom, said casing being adapted to be seated upon a range or the like, an inner casing forming a pair of fire pots having fiue spaces leading to the opening in the bottom of the outer casing, there being air openings in the fire pots and in the outer casing, a jacket surrounding the fire pots and standing between the openings of the fire pots and the openings of the outer casing, doors for closing the openings of the outer casing, and partitions connecting the jacket with the outer casing for preventing draft communication from one end of the stove to the other.

In testimony whereof, I affix my signature, in presence of two witnesses.


Copies of this patent may be obtained for five cents each, by addressing the Commissioner of Patents, Washington, D. C.

Referenced by
Citing PatentFiling datePublication dateApplicantTitle
US6349713 *Jan 28, 2000Feb 26, 2002Green Life Co., Ltd.Cooking stove
Cooperative ClassificationA47J36/36