US1072113A - Portable gas-range. - Google Patents

Description

W. L. HALL & R. P. GEORGE.

PORTABLE GAS RANGE.

Patented Sept. 2, 1913.

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WALLACE L. HALL ANLD RICHARD F. GEORGE, OF SAN FRANCISCO, CALIFORNIA.

PORTABLE GAS-RANGE.

Specification of Letters Patent.

Patented Sept. :5, .1913.

Application filed September 12, 1911. Serial No. 648,871.

To all whom it may concern:

Be it known that we, VVALLACE L. HALL and Riot-Iain) F. Gnonon, both citizens of the United States, residing in the city and county of San Francisco and State of California, have invented new and useful Improvements in Portable Gas-Ranges, of which the following is a specification.

This invention relates to improvements in a portable gas stove or range.

It is the object of this invention to provide a light and compact gas or oil range which :an be readily moved from place to place by hand, and which is adapted for use in baking, boiling, steaming, frying and otherwise cooking and preparing foods, etc.

Another object is to provide in a range of the above character, a simple and e'llicient means for distributing heat throughout the interior of the even from a single burner.

Other objects will appear hereinafter.

The invention consists of the parts and the construction and combination of parts as hereinafter more fully described and claimed, having reference to the accompanying drawings, in which- Figure 1 is a perspective view of the invention with parts broken away. Fig. 2 is a vertical longitudinal section of same.

In the drawings A represents a rectangular base supported on legs 2 and having an upwardly extending flange 3 on its outer edge, and is preferably formed of cast metal. The oven portion of the invention is constructed of sheet metal, and the sides are formed with double walls 4-4), with the intervening space filled with a non heat con doctor or insulator 6, such as asbestos, to confine the heat to a large degree within the oven. One side of the oven is provided with a door 7. which is also made double and lined with asbestos or other heat insulating material. The bottom 8 of the oven is attached to the sides thereof, while the top 9 is in the form of a plate having a downwardly extending flange 10 on its outer edge, the top plate 9 being preferably formed of cast metal and rests upon the upper edge of the sides of the oven with the flange 10 overlapping the sides a short distance, as shown in Fig. 2.

The top plate 9 is provided with openings 11 closable by means of lids 12 in the usual manner. and a series of vents or perforations 13 are formed in a row along the front edge of the top plate to admit of the escape of a small portion of the heated air in the oven at this point.

In assembling the range the oven is set on the base A within the flange 3 and the top plate 9 is set on the upper edge of the oven sides as before described, and bolts 13 are passed through the plate 9, between the walls a t of the oven and extend through the base A; nuts 14: being screwed on the lower ends of the bolts 13 to bind the parts together. A bolt 13 is disposed near each of the four corners of the top plate 9.

Formed in the bottom 8 adjacent the back wall of the oven is a perforation 15 which is adapted to receive a removable hood 1G, constructed in the form of a truncated cone and having a peripheral flange on its lower edge which is adapted to rest on the bottom 8, said hood having, also, a downwardly extending flange projecting into the perforation in to prevent sidewise shifting of the hood 16. The upper open end of the hood 16 extends into a sheet metal flue 17, which flue normally rests on the hood 16 and extends upward within the oven and terminates a short distance below the top plate 9 adjacent one of the covered openings 11. Disposed within the hood 16 is a gas burner 18 of any suitable description which burner is connected with a pipe 19 through a needle valve 20. The pipe 19 is adapted to be attached to a conduit leading from any suitable source or gas supply not necessary to be here shown.

The stem 21. of the needle valve 20 extends beneath the bottom 8 of the oven and through the flange 3 in the base A to the front of the range. and is fitted with the usual hand wheel 92 for operating the valve. to regulate the flow of gas to the burner 18.

A damper 95? is mounted in the fine 17 to regulate the flow of heat from the burner 18 to the interior of the oven. A perforation 24 is formed in the fine 17 at its lower end through which a light may be readily applied to the burner 18 from the interior of the oven. this perforation being adapted to be closed by means of a downwardly projecting shield 25 formed on a partition 26 arranged to he slid in or out of the oven in the usual manner. This partition divides the casing of the oven into a plurality of compartments with each of which the flue l7 may he made to communicate, as we will hereinafter describe.

A series of removable shelves 27 are disposed within the oven above the shelf 26. in any suitable manner.

In the application of the invention, a light is applied to the burner 18 through the perforation 24, the shelf 26 being previously withdrawn, the pipe 19 connected with the source of gas supply and the valve 20 opened. burner are impinged on the inner wall of the hood 16 and the heat rising direct from the flames passes upward through the flue 17 and enters the oven through the upper end thereof, this direct heat acting to heat the top plate 9 so that it may be used as a stove. The perforations 13 insure the heat rising from the flue 17 passing along the underside of the top plate 9 so as to thoroughly act on the latter. The heat radiating from the hood 16 and flue 17 serves to heat the interior of the oven.

By making the hood 16 removable, it can be taken out and quickly replaced by a new one when it becomes warped or Worn by the intense heat of the flamesimpinging thereon.

A strap or band 28, mounted on the back wall of the oven, passes around the flue 17 near its upper end and is attached to the flue by means of a screw 29 in such manner as to securely hold the flue 17 against move ment or displacement; the flue 17 being held rigid acts to retain the hood 16 in place. The lower end of the flue 17 is flared outwardly so as to readily fit the upper end of the conical hood 16 and form a tight oint at this point without necessitating the use of rivets,'screws, or other devices for connecting the hood 16 and flue 17 together.

The apron or shield 25 formed on the underside of the partition 26 and extending over the opening 24:, forms a closure therefor to prevent the escape of the heat through this opening. "When it is desired to permit the heat to pass through this opening into the space below the partition 26, the latter is inverted and the damper 23 is closed,

which then acts to direct the heat through the perforation 24 to the underside of the shelf 26 which is preferably formed of an imperforate sheet of metal. It will thus be seen that the partition 26 divides the oven easing into a plurality of compartments, and the flue, 17, for the heating agent is formed with a plurality of outlets which communicate with said compartments, the partition being adjustable and carrying the apron or shield as'a means for varying the discharge of the heating agent through the respective outlets of the flue according to the various adjustments of the partition.

Having thus described our invention what we claim and desire to secure by Letters Patent is 1. In a portable gas range the combina- The flames emanating from thetion of a base having an upwardly extending flange on its outer edge, an oven resting on said base, having a separable top plate, said top. plate having a series of perforations near one edge, and said oven having a perforation in the bottom, a removable hood disposed over said last perforation, aflue resting on said hood and opening to the interior of the oven near the top plate thereof, a gas burner disposed in said hood and mounted on the base, said flue having an opening adjacent its lower end for the insertion of aflame, and a damper in said flue above said opening, substantially as described.

2. in a portable gas stove, of the character described, the combination of a base, a removable oven supported on the base, said oven having its bottom plate provided with an opening nearthe back thereof, a downwardly flared hood removably fitted to said opening and extending into the oven chamher, and having a flange fitting said opening whereby the hood is prevented from side movement, a flue fitted to the upper end of the hood and extending to a point in the oven near the top thereof, said oven having a top plate with vents therein for the escape of products of combustion, and a' gas burner in said base and entering the lower end of said hood.

3. In a portable gas stove of the character described, the combination of a base, aremovable oven supported on the base, said oven having its bottom plate provided with an opening near the back thereof, a downwardly flared hood removably fitted to said opening and extending into the oven chamher, said hood having a vertical flange at its bottom fitting said opening whereby the hood is'prevented from sidemovement, a flue fitted to the upper end of the hood and extending to a point in the oven near the top thereof, said oven having a top plate with vents therein for the escape of products of combustion, and a gas burner in said base and entering the lower end of said hood, said flue having an opening in one side, means for opening or closing said opening to prevent or allow the passage of heated air through the opening into the lower portion of the oven, and a damper in the flue above the opening for controlling the passage of heated air through the flue.

In testimony whereof we have hereunto set our hands in the presence of two subscribing witnesses.

WALLACE L. HALL. RICHARD F. GEORGE.

Witnesses:

CHARLES EDELMAN, LEsLIE E. ALT.

Copier. ef this patent may be obtained for five cents each, by addressing the Commissioner of ratents, Washington, D. G.

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