US159635A - Improvement in argand-burners - Google Patents

Description

UNITED STAT-Es PATENT orrrcr.

JOHN A. BowLER, on Nnw vonk, Npv.

IMPROVEMENT IN ARGAND-BURNERS.

Specification forming part of Letters Patent No. 159,635, dated February 9, 1875; application filed January 12, 1875.

To all whom it may concern:

Be it known that I, JOHN A. BOWLER, of New York, in the county and State of New York, have invented an Improvement in Argand-Burners; and I do hereby declare that the following is a full, clear, and exact de- Y scription thereof, reference being had to the accompanying drawing forming part of this specification.

My invention relates to certain improvements in that class of argand gas-burners which are provided with a switchcock or valve for regulating the supply. The invention consists in a novel construction of the cock or valve-plug, and also of a wire-gauze screen used in connection therewith, as hereinafter particularly described.

In the accompanying drawing, Figure l is a central vertical section of my improved burner. Fig. 2 is an enlarged side view of the valve-plug. Fig. 3 is a vertical section of the same.

The burner B is made with its arms b b and annular chamber c in the ordinary form, the arms extending radially from the neck d, in which works the cock or valveplug E, which may be either cylindrical or tapering, corresponding in form with the inside of the neck, but not fitting tightly therein, except at the upper end, which is rounded or beveled, and bears against a cap, f, on the upper side of the arms b b, where they radiate from the neck d. At the upper end of the plug is a stem, e, which passes through a hole in the cap f, and has attached to its upper end a lever, H, which serves as a handle for turning it.. Between the lever H and the cap']c is a coiled spring, g, which surrounds the stem e,

and has its lower end bearing against the cap f, and its upper end against the lever H, by which means the plug is held in place against the cap, and the lever is held sufficiently tight to enable it to retain its place when moved to different positions. Y

The cock or valve-plug` E is hollow, instead of solid, as in the case of plugs in ordinary use. In the lower or open end of the plug is inserted a wire-gauze screen, J, of cup-like form, extending up into the hollow portion. On the outer side of the plug, directly oppo site each other7 are two curved or spiral grooves', l. The upper end of each groove communicates with one of the arms b, and is slightly wider and deeper than .the rest of the groove, so as to spread the current of gas passing therethrough. The lower end of each groove terminates in a hole, i, made through the plugfrom the outside to the inside thereof. The sides of the screen J extend upward in the neck somewhat higher than the holes c'.

The burner is attached to the gas-pipe by means of the neck d, in the usual manner. The gas passes through the screen J, and is thus cleansed of any foreign substance, which might be' carried along thereby, and is also prevented from whistling or humming in its passage to the burner. It then passes out,

through the holes t' and grooves Z, to the arms b b, and from thence to the annular chamber c, and the perforations in the upper portion thereof. When the plug is in the position shown in Fig. l, the grooves Z are in communication with the arms b, so that the gas is free to iiow to the burner.

By turning the handle or lever H, the gas is shut oli" from the burner, and, by reason of the curved or spiral form ot' the grooves, the shutting off is gradual instead ot' sudden, as in cases where the gas-passages are not curved or spiral. in the opposite direction, the gas is again turned on, and allowed to iioW to the burner with full force.

As the plug E does not t tightly in the neck d, a sufficient quantity of gas is allowed to iiow to the burner to preventit from be-V ing entirely extinguished by the operation of the leverH.

What I claim as new, and desire to secure by Letters Patent, is-

1. The combination, with an ordinary argand-burner, constructed with tubular arms, and an annular chamber, c, of the hollow valve- .plug E, constructed with the grooves l, running in opposite directions from the transverse passage t' in the valve, and each communicating with one of the arms b, substantially as and for the purpose described.

2. The combination, with an ordinary argand-burner, constructed with tubular arms b b and annular chamber c, of the hollow valve By turning the handle or lever H sage, of the Wire-gauze screen J, arranged upon the inner periphery of the hollow valve, and covering the transverse opening i, substantially as and for the purpose described.

JOHN A. BOWLER. Witnesses:

BENJAMIN W. HOFFMAN, A. J. DE LACY. f

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