US678550A - Acetylene-gas burner. - Google Patents

Description

No. 678,550. Patented .luly l6, l90l.

E. N. DlCKERSON.

ACETYLENE GAS BURNER.

(Application filed. Jan. 22, 1897.) (No Model.)

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UNITED STATES PATENT EDWARD N. DIOKERSON, OF NEW YORK, N. Y.

ACETYLENE-GAS BURNER.

SPECIFICATION forming part of Letters Patent N 0. 678,550, dated July 16, 1901. Application filed January 22, 1897. Serial No. 620,214. (No model.)

To all whom it may concern:

Be it known that I, EDWARD N. DIOKERSON, of No. 253 Broadway, in the city, county, and State of New York, have invented a new and useful Improvement in Acetylene-Gas Burners, of which the following is a full, true, and exact description, reference being had to the accompanying drawings.

A difficulty in burning acetylene gas has been found due to the fact there is a tendency of the gas to break up and deposit its carbon at the orifice where the gas issues to the airfor the purpose of burning. Many efforts have been made to produce a burner which will not clog under these conditions. It has been discovered that a lateral indraft of air at about the orifice will out d the flame from the burner-orifice. Such draft has been produced by an independent airpump and requires a separate pipe and is consequently not always applicable. I have discovered that practically the same result may be obtained by a peculiarly-shaped burner in which the orifice is located in a cavity so shaped that the air is drawn down and against the flame, tending to prevent the combustion immediately at the orifice and causing the carbon-depositing temperature to exist only at a distance above the orifice.

It is believed that the deposition of the carbon occurs only at an intermediate temperature between the normal temperature of the gas and the point to which it may be heated by its combustion. The principle of my invention consists, therefore, in supplying the gas with a limited amount of oxygen at its point of escape from the orifice, which oxygen or air is caused to flow substantially at right angles to the delivery-orifice. By uniting two of these orifices the ordinary unionjet fiame'is obtained.

My invention will be readily understood from the accompanying drawings, in which- Figure 1 represents a section of my preferred form of burner; Fig. 2, a section of a modified form and Fig. 3 two of the burners of Fig. I mounted so as to make a fiat flame.

A represents the burner-tip of any suitable material. I have found metal to give good results. It may be mounted upon any suitable support 13. It is provided with a single orifice O, and the gas jetting upward in the burner, Fig. 1, draws in a current of air around the sides of the basin D, which is turned at right angles by the lower inclined sides, This inrush of cold air being so caused to fiow into the gas at its point of escape has a tendency to prevent the gas reaching its kindling temperature immediately at the delivery. Oonsequently in actual practice the deposit of carbon is hindered. In Fig. 2 substantially the same view is shown, excepting that the gas is delivered slightly above the bottom of the. basin D through the orifice E, as shown.

In Fig. 3 a union-jet arrangement is shown. This figure is of course merely by Way of illustration, for the arrangement can be mounted in many different ways.

It will be observed also that the downwardly-moving 'air is in part impoverished of its oxygen by the flame, which fact may have some influence on the question of the carbon deposit. Of course the theories here adduced are not stated as necessarily correct, but only as explanatory. It is desirable, in order to secure good results, that the cavity should have a definite relation to the gas-pressure, in order to secure the impoverishment of the air. I have found that a cavity one-quarter of an inch in diameter and one-quarter of an inch deep,'hav'ing a gas-pressure of approxi mately five inches, Works well. I do not state these proportions as essential,- but as desirable.

What I claim as my. invention, and desire to secure by Letters Patent, is-

A burner for acetylene gas having a oen tral cylindrical orifice located in the bottom of an opening substantially hemispherical in shape and having a slight elevation in the bottom of the opening through which elevation passes the orifice, substantially as described.

In testimony whereof I have signed my name to this specification in the presence of two subscribing witnesses.

E. N. DICKERSDN;

Witnesses W. LAIRD Gonnsnononen, H. OoUrANr.

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