US1534577A - Automatic gas regulator - Google Patents

Description

April 21,- 1925.

I E. u. ca. ERNST AUTOMATIC GAS REGULATOR EH/Amm. A

Patented Apr. 21, 1925.

UNITED STATES PATENT OFFICE AUTOMATIC GAS REGULATOR.

Application filed September 23, 1920. Serial No. 412,408.

To all whom it may concern:

Be it known that I, EMiL ULRIK GUsTAv ERNST, citizen of the Kingdom of Denmark, residing at Copenhagen, in the Kingdom of Denmark, have invented certain new and useful Improvements in Automatic Gas Regulators, of which the following is a specification, reference being had therein to the accompanying drawing. 1

Experience has shown that the flame of a gas cooker, ot' a given size can only be economically utilized by cooking pots, frying pans or the like of a given size at the bottom thereof, and that, therefore, for larger or smaller cooking pots, or the like, correspondingly larger or smaller flames should be used, if the latter are to allow of utilizing the heating power of the gas to the maximum degree.

It is the object of my present invention to arrange gas cookers in such a manner that the size of the flame can be automatically regulated in proportionto the size of the bottom of the cooking pot, so that the flame .7 is utilized to the best advantage.

In the accompanying'drawing in which the invention is shown, by Way of example, en'ibodiments. Figs. 1 and 2 show the regulator with a large and a small flat bottomed cooking pot, respectively.

In the embodiment shown the gas supply pipe leading to the burner 3 consists of two telescoping pipes and 5, telescoping on each other. The former is attached to the burner or, if, desirable made in one piece therewith, and ends with a mouthpiece 6 near the bottom of the same. To the other pipe the gas is supplied through an open-- ing 7. One or several springs 9 are pro vided which have the tendency to lift the pipe 4 and thus the burner. When the latter is more or less pressed down, a preferably adjustable needle valve 10 or the like,

be closed, and the smaller will be the flame. WVhen a pot with a larger bottom is placed on, the cooker, the spring 9 will push the burner up, and the orifice in the mouth piece will then be opened more. i

The holes 16 for the primary air supply are disposed at the upper end of pipe 5.

The valve 10 may be provided with an enlarged part 17, and below the pipe. 1 a flange 18 may be arranged, which, when the burner is. in its highest position, is by the spring 9 pressed upwards against the said enlargement and thereby shuts the mouthpiece ofi from the gas supply opening 7. As the burner will assume this position as soon as the pot is removed, the gas will, thus, be automatically shut off fromthe burner. The cooker may be adjusted to burn with a lowered flame by means of a handle 19 having a crankpin 20 or the like, which acts on a yoke-shapedpart 21 attached to the burner.

By so turning the handle 19 that the crank pin 20 engages the yoke 21, the latter and thereby the burner can be moved down 1 against the action of the spring 9, whereby the supply of air through the air-inlet openings 16 can be regulated.

I claim as my invention:

1. The combination with a gas burner for cooking and a gas supply conduit, of a valve adapted to control the amount of supplied through the said conduit, movable means actuated by the cooking utensil when I in normal position on the b'urner to automatically operate the said valve to supply more or less gas proportional to the bottom area of said cooking utensil, and regulating I means for the air supply operated simultaneously and in accordance with the said gas supply controlling means.

2. The combination as specified in claim 1, comprising a part attached to the said movable means, and a manually operated member adapted to engage the said part thereby enabling the said movable'means to be operated at will for regulating the gas pp y- In testimony whereof I hereunto aifix my signature in the presence of two witnesses.

EMIL ULRIK GUSTAV ERNST. Witnesses:

BELL HANSEN, A. GHRIsTAFrERsoN.

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