US379562A

US379562A - cooke

Info

Publication number: US379562A
Authority: US
Publication date: 1888-03-20
Anticipated expiration: 1905-03-20

Description

(No Model.) 1

G. K. COOKE.

` GAS BURNER. No. 379,562. Patented Mar. 20, 1888.

Flc-I l 'I l H132,

WIT E55 E5, INVENTDR,

NrrE STATESV ATENT Erice.

GEORGE K. COOKE, OF NEW YORK, N. Y., ASSIGNOR TO D. SACKETT MOORE, OF SAME PLACE.

GAS-BURNER.

SPECIFICATION forming part of Letters Patent N o. 379.5762, dated March 20, 1.888.

Application filed September 6, 1887. Serial No. 248.928. (No model.l

To aZZ whom it may concern:

Be it known that I, GEORGE K. COOKE, of New York city, New York, have invented a new and Improved Gas-Burner, of which the following is a specification.

This invention relates to a gas-burner ofthe kind which when turned off still admits a limited supply of gas sufficient for a minute flame. Thus the burner can be turned on without the ro use of a match. The burner is provided with a sliding chimney, which is raised up to surround the small flame a short time after the main flame has been turned off. In this way the chimney will not be apt to become cracked by the main flame, and will still protect the small dame.

The invention consists in the various fea. tures of improvement, more fully pointed out in the claim.

In the accompanying drawings, Figure l is a front View of my improved burner with the chimney down. Fig. 2 is a side view thereof with the chimney up. Fig. Sis a vertical central section of the burner proper. Fig. 4 is a 4section on line .c x, Fig. 3. Fig. 5 is a section on lineyy, Fig. 3. Fig. 6 is a side view of the valve-plug, showing inlet-opening of slit j; Fig. 7, a similar view showing the outlet-opening ofslitj.

The lettera represents the gas-inlet pipe en tering the valve-seat b, from which projects upwardly the discharge -pipe c, having the usual tip. i

d is the tapering plug-valve projecting beyond the valveseat at both ends. These eX- posed ends are squared and are embraced by an oscillating frame consist-i ng of two U -shaped pieces, e, having laterally-projecting arms e' and perforated centrally to fit upon the ends 4o of the plug-valve.

ff' are chains connected to arms e', andgis a pivoted link connecting the oscillating frame to the cap 7i, carrying chimney 'i'. By pulling either the chain f orf', the chimney is raised or lowered, and at the same time the plugvalve is partially revolved.

The plug d is provided with a transverse slit, j, connecting the inlet with the dischargepipe, though intercepted by an axial perforation, lr. The slitj should be long and narrow at its discharge end, (see Fig. 7,) so as to be brought rapidly past the pipe c when the The slit j serves for the pasplug is turned.

sage of the gas that supplies the large or main flame. For the auxiliary flame there is a perforation, Z, smaller than slitj, and connecting the axial perforation k with the surface. Here the perforation Z joins a short groove, m, partly encircling plug d. The inlet end of slit j is also connected to an encircling groove, n.

When the chain f ispulled down, the chimney z'islowered, and at the same time the plug d is revolved to bring the slitj in line with the pipes a o, and thus cause a full supply of gas, Fig. 3, for the main flame.

WVhen the chain f is subsequently pulled down, the first fraction of rotation of plug d will bring the slitj past the mouth of pipe c, and therebyV quickly cut off the main supply of gas. In order to carry this out, this slit, 7o as before stated, should be long and narrow, and the -lower end, c', of pipe c should also be long and narrow. (See Figs. 3, 4, and 5.) Thus enough gas can be admitted by these parts to feed the main liame, and still the main 7 5 flame can be very quickly cut off. This is necessary, because the main dame should disappear before the frame e has oscillated sufficiently far to raise the chimney il up to the dame, for otherwise the chimney would-be 8o cracked or injured by the main flame. The main dame being thus turned off, gas will be fed, through groove n, slit j, central perforation, 7c, perforation l, and groove m, into the contracted mouth c of pipe c, to supply the auxiliary darne.

In order to regulate the size of the auxiliary iame, I make use of a set-screw, 0, entering axial perforation 7c, and of such a length that it may close up the perforation Z to a greater 9o or less extent, Fig. 3.

p is a spring, between the oscillating frame and the plug d, for holding the latter tightly to its seat.

The combination, in a gasburner, of the pipe a, valve-seat b, and pipe c, having long and narrow-slitted mouth c', with the valve d, having a direct gas-passage, j, with a long and narrow discharge end, and having an auxil- IOO iary gas passage, and with an oscillating frame connected to the chimney-cap 7L and operating the valve, substantially as specified.

Witnesses: GEORGE K. COOKE.

F. v. BRIESEN, WM. A. LOWE.