US794429A - Gas-burner for singeing-machines. - Google Patents

Description

No. 794.429. 7 PATENTED JULY 11, 1905. H. H. SKEVINGTON, W. L. WHITEHEAD & W. H. SELTZBR. GAS BURNER FOR SINGEING MAGHINBS.

APPLICATION FILED 11120.16, 1904.

NITED STATES Patented July 11, 1905.

HENRY H. SKEVINGTON, WILLIAM L. WHITEHEAD, AND WILLIAM HARRIS SELTZER, OF PHILADELPHIA, PENNSYLVANIA.

GAS-BURNER FOR SINGEING-NIACHINES.

SPECIFICATION forming part of Letters Patent No. 794,429, dated July 11, 1905.

Application filed December 16, 1904:. Serial No. 237,093.

To all whom it may concern:

Be it known that we, HENRY H. SKEVING TON, WILLIAM L. WHITEHEAD, and WILLIAM HARRIS SELTZER, citizens of the United States, residing in the city and county of Philadelphia and State of Pennsylvania, have invented new and useful Improvements in Gas-Burners Especially Adapted for Singeing-Machines, of which the following is a specification.

Our invention relates to gas-burners, and especially to such which are designed to produce an even uniformly thin sheet of flame adapted for singeing fabrics of various kind.

The burners'heretofore used for singeingmachines gave unsatisfactory results, due to the arrangement of the gasorifices, which when in the shape of holes drilled at intervals in the burner-tube would give jets of flames instead of an even sheet, and where a slotted burner-tube was provided the heatwould affect the metal surrounding the slot and close it almost at the middle of the tube, so that at each end of the slot the escaping gas would produce a big sheet of flame and at the middle there would hardly be a flame at all.

Our invention has for its purpose to avoid these disadvantages and to produce a reliable burner-tube producing at all times an even and uniformly thin sheet of flame.

Our invention consists of a burner-tube having orifices drilled in a line in a Wall of the tube and a groove connecting all the orifices at the outside of the tube, so that the gas escaping through the orifices will fill the groove and when ignited give an even thin sheet of flame uniform throughout the length of the groove.

Our invention further consists of means for mixing air with the gas and keeping the mixture of gas and air under pressure in the burner-tube; and our invention consists of the improvements hereinafter described, and pointed out in the claim.

Our invention is illustrated in the accompanying drawings, in which Figure 1 is an elevation showing in end View the burner-tubes, the gas-supply pipe with stop-cocks, the air-supply pipes, and a rotary blower. Fig. 2 shows two burnertubes or gas-burners, one above the other, and showing also the gas and air supply pipes. Fig. 3 is a detail view, partly in section and partly in elevation, showing one gas-burner composed of a burner-tube and gas and air supply pipes with stop-cocks; and Fig. 4 is a section of the burner-tube, showing the orifices and groove on the outside of the said tube.

Referring now to the drawings for a further description of our invention, and especially to Fig. 3, f is a burner-tube closed at one end and secured with the other end to an air-supply pipe f by an elbow f The airsupply pipe f is provided with a valve or regulator f to admit and regulate a supply of air to the burner-tube f. In the elbow f of the air-supply pipe is secured a gas-supply pipe f, the horizontal extension of which is concentric with the burner-tube f, and the free end of this extension is contracted to cause the escaping gas to traverse the whole length of the tube f and mingle with the air contained in said tube. This admixture of gas and air escapes through the orifices f and the groove f is provided to form a channel in which the escaping gases are distributed evenly over the whole length of the groove. This will be especially the case when the gases are ignited, the resulting flame acting as a resistance to the issuing gases, causing an even uniformly thin sheet of flame. The gas-supply pipe f is provided with a stop-cock f of any preferred construction.

In Figs. 1 and 2 we have shown two burnertubes f and f, arranged for use in a singeingmachine as, for instance, shown and described in an application for a patent filed by us August 26, 1904:, Serial No. 222,225, and in which feed-rollers d and d are arranged to forward forms 8, supporting the goods to be singed between the said burner-tubes f and f, so that the singeing takes place at both sides of the forms 8.

The air-supply pipes f of the burner-tubes f and f are connected to a reservoir 10, from which they are supplied with fresh air under pressure. It is essential in order to produce an even flame to have the air in the supplypipes f and burner-tubes f and 7 under pressure, as the latter are rather long in comparison with their diameter, and to obtain the best result We found it necessary to install a blower p, capable of taking pure air from the outside of the building or from some other room and force the same into the reservoir 10 under moderate pressure.

It Will be understood by those skilled in the art to which our invention appertains that modifications may be made without departing from the spirit of the invention.

Having thus described the nature and objects of our invention, What we claim as new, and desire to secure by Letters Patent, is

A gas-burner comprising a burner-tube into which air and gas are admitted, in combination With an air-supply pipe and a gas-supply pipe a valve on each of the supply-pipes, a

nozzle or contracted free end on the said gassupply pipe extending into the burner-tube, a number of orifices in the Wall of said burnertube and a groove on the outside of the burner-tube communicating With the said orifices for the purpose of forming a thin sheet of flame, substantially as and for the purposes set forth.

In Witness whereof We have hereunto set our hands in the presence of tWo subscribing witnesses.

HENRY H. SKEVINGTON. WILLIAM L. WHITEHEAD. WILLIAM HARRIS SELTZER.

Witnesses:

D. J. MILLER, E. F. S ITH.

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