US189916A - Improvement in gas-burners - Google Patents

Description

4F. n. Buss.

l GAS-BURNER. No. 189;.916..

PatenteaApm 24, 187,7.

UNITED STATES FRANCIS D. BL1ss,joE NEwHAvEN, CoNN., AssieNoR 0E Two-trumps' 'Eis EIGHT To JOELy W. s. PECK AND' CEAELEsA; CHASE, oF sAME PLACE.

vlwnRc'avElvlENT IN "eAs-BuRNERs.l

Specification forming part of LettersPatent No. 189,9161, dated April 24, 1877; application filed v February 22, 1877.

To all whom t may concern:

of the city andvcounty of New Haven, in the State of Connecticut, have invented certainA new and useful Improvements in GrasBurn-l ers; and I do hereby declare that the following specification, taken in connection with the` drawings furnished and forming a part of the same, is a full, clear, and complete description thereof.

My said improvements relate to a general class of burners known as self-lighters,77 and to that particular class which embody with the main burner an auxiliary jet or burner,

which affords a flame by means of which the main burner is lighted.

One feature of my invention consists in the combination, with the main cock of the burner, of a screw-cock in the center thereof, which admits of the regulation of the iiow of gas to the auxiliary jet, and by which the gas may be wholly cut off therefrom. As heretofore constructed the auxiliary burner has been provided with a screw-cock, by which the ow of gas thereto may be regulated, and this feature of my invention is limited to the screw-cock within the main cock, which admits of a simpler and less expensive construction.

Another feature of my invention consists in the combination, with a tapered plug-cock and a spring for advancing it in its seat, of a cap which incloses the spring and protects the cock and spring from dust and dirt, and affords a neat nish. As heretofore constructed, the plug-cock and spring have been employed without the cap.

To more particularly describe my invention, I will refer to the accompanying drawings, in which Figure lrepresents one of my improved burners in perspective. Fig. 2 represents the same in vertical central section. Fig. 3 represents the plug-cock detached from the burner. Fig. 4 represents the plug in section on line wy.4 Fig. 5 represents the plug in section on line y z. Fig. 6 represents in perspective the cup which incloses the small end of the plug and its spring. y

A denotes the main body of the burner, provided with the usual screwneck for attachment to the gas-xture, and a shield for prol y tecting-the auxiliary jet from currents of air, Beit known that 1, FRANCIS D. -BL1ss','ofi

asheretofore.` The main jet of the burner is `shown at a, and the auxiliary jet atb. B denotes the plug of the cock. It is tapering, as usual, and is provided with a lever, which has' a stop-pin foren'gaging with the ends of a recess in the side of the body of the burner, as heretofore, for limiting the rotative movement of the plug. At its small end, which projects beyond the body of the burner, it is provided with an expansive spiral spring, which abuts against the interior of the head of the cap c, which is connected with the plug by means of a central end screw, as at d. The edge of the cup engages with the adjacent surface of the body of the burner, and affords a tight joint and a neat finish. y

The plug has a central chamber, as at e, which extends from its largest end for about two-thirds or more of its length,and there terminates. The outer end of this cham ber is somewhat larger than theinner end, and is threaded at its outer end for the reception of the screwplug f, which is provided with a milled head. At a point opposite the interior of the base of the burner, the main plug is provided with a main diametrical passage, as at g, through which the gas flows directly to the main burner. A radial passage,-as at h, in the same plane with-the main passage, communicates centrally therewith and with the central chamber. of the main passage by means of a peripherical channel, as at t', so that in whatever posi-- tion the plug may be the gas will iiow into the central chamber, whether it be permitted to pass to the main burner, or is wholly cut od' therefrom. At the rear end of the central chamber there are two other radial passages, as at k, which communicate with the central chamber and with each other by means of a peripherical channel, as at l. lie quartering to each other, so that, as the plug can only be moved in either direction a quarter of a revolution, one or the other of the passages will communicate with the axiliary jet or burner, and during this movement the channel l permits a free supply of gas thereto. It will be seen that, when the upper end of the main passage y is passed be- FrrE N It also communicates with the lower end These passages yond the entrance to the main jet, the gas will nevertheless be free to enter the central chamberin the plug by the way of the channel/i and radial 'passage h, and thence, under all circumstances, through the passages k to the auxiliary burner.

As has before been stated, the inner end -of the central chamber e `is smaller in diameter than the outer end. At the point at which the diameter is reduced a concave seat is afforded for the convex inner end of the screwplug f, so that this latter is enabled to cut off the gas entirely from the rear end of 'the central chamber, and, therefore, from the auxiliary burner, or it may be set so as to admit much or little gas thereto.

that the simplicity of the parts admits `of economical construction, and that the channels which :connect the passages are not so liable to become clogged as-Would be the case if they extended longitudinally on the surface of the `plug instead of circumferentially. By having the auxiliary screw-plug within It will be seenv the main plug 1 am enabled to supply both the main and auxiliary jets from-a chamber l beneath the plug, which is common to both jets, instead of having a separate chamber below the main plug controlled by'a screw-plug,

as described. I

FRANCIS D. BLISS.'

Witnesses; f

JAMES A. Woon, GEO. R. GooLEY.

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