US619609A - Theophil pfister - Google Patents

Description

No. 619,609. Patented Feb. 14, I899. T. PFISTER.

BOILING, COOKING, AND HEATING STOVE.

(Application filed Dec. 20, 1897.)

(N o M o d a l Lvmo.v wLsmNsToN u c UNITED STATES PATENT OFFICE.

THEOPHIL PFISTER, OF LONDON, ENGLAND.

BOILING, COOKING, AND HEATING STOVE.

SPECIFICATION forming part of Letters Patent No. 619,609, dated February 14, 1899.

Application filed December 20, 1897. Serial No. 662,635. (No model.)

To all whom it may concern:

Be it known that I, THEOPHIL PFISTER, a citizen of the United States, residing at 5, 6, and 7 Lensden Place, Golden Lane, London, England, have invented certain new and useful Improvements in Boiling, Cooking, and Heating Stoves, (for which I have obtained a patent in Great Britain, No. 3,614, dated February 19, 1895,) of which the following is a specification.

This invention relates to cooking and heating stoves, and has for its object to provide improved apparatus for boiling, cooking, and heating chiefly by means of gas or oil lamps or stoves.

My invention consists in novel features of construction and in the combination of parts in a stove, as hereinafter described and claimed.

The invention is illustrated in the accompanying drawings, in which Figure 1 is afront elevation of my improved stove arranged for cooking, a portion of 'the boiler and of the oven and one of the steamers being shown in section. Fig. 2 is a vertical section of the oven detached. Fig. 3 is a similar section of the boiler.

Referring to the drawings, the numeral 1 designates a center-draft lamp or stove adapted to supply heat for boiling, heating, or cooking, as may be desired. This lamp or stove is preferably supported on the lower shelf 2 of an open-top stand 3, the upper por-' tion of which is constructed to support a boiler 4, that is of annular construction.

The annular boiler 4is formed by an outer cylindrical shell 5 and an inner concentric cylindrical shell 6, the two cylindrical and concentric shells being united at top and bot tom by end plates 7 in any suitable and secure manner.

The bottom end plate of the boiler is perforated at the center and is furnished with a circular downwardly-projecting flange or lip 8, adapted to fit tightly around the .gallery of the lamp or stove to prevent the entrance of air into the space within the inner shell 6 of the boiler save through the burner of the lamp. The said inner boiler-shell 6 is preferably extended above the top of the boiler, as shown clearly in Fig. 3, and is open at the top. By this construction the said inner boilershell 6 is made to serve as the chimney for the lamp and to form a combustion-chamber in which the flame of the lamp will burn without smoking. The usual lamp-chimney is dispensed with, and the flame and products of combustion are thus allowed to come in direct contact with the boiler, whereby the heating eifect obtained is very great.

To allow of filling and replenishing the boiler with water when required, the outer shell 5 is provided with an inlet-orifice 9 and a lip or spout 10, Fig. 3. A tap 11 is provided for drawing off hot water and for emptying the boiler when required. It is preferable to provide the boiler with handles 12 for use in lifting it away from the lamp or stove.

For the purpose of supporting a removable oven 13 there may be placed around the stove 1 and boiler 4 a stand 14 of any suitable character, in the top of which there should be a suitable opening to receive the central upward-extended flue 15 of the boiler. In the bottom of the oven 13 there is an opening 16, Fig. 2, into which the top of the flue 15 or upwardprojecting inner boiler-shell 6 fits, so as to prevent loss of heat between the boiler and the oven. The heated air passing up through the boiler-flue 15 enters the oven through the opening 16 and is distributed throughout the oven by a plate or tray 17, resting on standards 18, that surround said opening. This deflecting plate or tray spreads the heated products of combustion coming from the lamp and distributes them more or less equally throughout the oven.

The sides of the oven 13 are extended upward above or beyond the crown-plate 19 and at their upper edges they are fitted with a top plate 20, between which and the crown-plate there is a shallow space 21, that, serves as an upper heating-chamber. The crown-plate 19 e I is pierced with openings 22 to allow the heated products of combustion to escape gradually from the oven into the space or chamber 21 to heat the contents of vessels or cooking utensils supported on the oven. In the top plate 20 there are openings 23, Fig. 2, to receive the wells 24, Fig. 1, of vessels or steamers 25,which are thereby kept warmer than they would be if the bottoms of the vessels were fiat.

The oven 13 is provided with handles 26, by which it can be lifted. It has a door 27, and

its interior may be fitted with shelves or trays of any suitable character for supporting articles of food.

The cooking of vegetables and the like is efiected in the steamers 25 by steam generated in the boiler. The steam is conducted through a pipe 28, leading from the boiler 4 up through the oven 13 to branch outlets 29, one such branch being provided for each steamer 25 and being arranged to enter an open pipe 30, fixed to the bottom of thesteamer and extending to near the top thereof. When it is desired to stop the entrance of steam into any one of the steamers 25, or when all or any of such steamers are not in use, the ends of the steamoutlets 29 are closed by plugs 31, inserted in the ends of said outlets. These plugs are attached by chains 32 to their respective branch pipes, and they can be removed or inserted, as required, when the steamers 25 are removed.

The boiler may be employed for the preparation of beverages and the annular waterspace may be divided into two or more compartments, if desired, by suitable divisionplates, so that each compartment can be used for preparing a separate beverage. Each compartment will then be fitted with a drawingoif tap.

It will be obvious that the boiler. can be fitted to anylamp and that either a gas-lamp or oil-lamp may be employed, as preferred.

What-I claim as my invention is The combination with a lamp, and an annular boiler supported on the lamp-gallery and having its inner cylindrical shell extended above the boiler-top, of an oven having in its bottom a circular opening fitted around the upward-extended inner boiler-shell and provided in its upper part with a heatingchamber having a perforated bottom and openings in the top for reception of steamers, and a steam-pipe extended from the boiler and through the oven to enter tubular portions of the steamers, substantially as described.

In witness whereof I have set my hand.

TI-IEOPIIIL PFISTER.

In presence of E. O. REARDON, E. BARTHELS.

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