US469824A - Gas-burner - Google Patents

Description

(No Modell) H.. KENNEDY. GAS BURNER.

No. 469,824, Patented Maf. 1l 1892.

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NTTED STATES PATENT OFFICE.

HUGH KENNEDY, OF SHARPSBURG, PENNSYLVANIA.

GAS-BURNER.

SPECIFICATION forming part of Letters Patent No. 469,824, dated March 1, 1892.

Application filed January 19,1891. Serial vNo, 378,185. (No model.)

` To @ZZ whom it may concern:

Be it known that I, HUGH KENNEDY, ofv

Sharpsburg, in the county of Allegheny and State of Pennsylvania, have invented a new and useful Improvement in Gas-Burners, of

which the following is a full, clear, and exact pecially for burning blast-furnace gases in the furnaces of steam-boilers, &c. Such gases are difficult to burn with economy and good results; but by means of my improvement I am enabled to utilize their heating qualities to the best advantage.

My invention also affords means by which the burner may be used as an efficient-device for regulating the supply of gas, or, if need be, cutting it off altogether.

In the drawings, 2 represents the combustion-chamber of a boiler-furnace. The gas for the furnace is derived from apipe or conduit 3, the mouth of which is faced by aplate 4, having a port or opening registering with the conduit. The burner consists of a gooseneck pipe 5, whose delivery end is elongated in width horizontally and is relatively narrow in vertical dimension. This pipe when in operation enters partially a hole 6, formed in the wall of the combustion-chamber, and the hole is larger in dimensions than the end of the pipe, so that a considerable vacant space is left around the latter, through which the entering gas, expanding in the opening, induces asupply of air into the furnace. The

I pipe 5 is carried by a valve-plate 7, which is set on the plate 4t and is movable thereon by means of a lever 8 or other appliance. This burner-pipe and its supporting-plate may be' moved as desired.

In Vthe modification shown in Fig. 3 the lever is pivoted to a stationary pivot 12, and thelink 9 is notched, and its notches are adapted to engage and to be shifted on a pin 13 on the lever to afford it a greater range of action, as in Fig. l. By operating this lever as above described the plate 7 may be moved, so that the end of the pipe shall register with the conduit 3 and shall be adapted to receive gas therefrom, or it may be moved back, so as todisconnect the pipe from the conduit and to close the conduitby covering it with the plate 7 and to cut off the supply of gas to the burner.

Vhen the parts are in the position shown in Fig. l, the gas passes through the burnerpipe and through the opening 6 into the combustion-chamber 2, and being delivered from a small hole in the pipe it expands in the opening 6, and thereby induces with strong suction a supply of air, as indicated by the arrows b. The size of the opening 6 is so proportioned to the size of the delivery-opening of the burner that a proper amount of air shall be induced to mingle with the gas to cause the best results in combustion. The proportional size illustrated in the drawings is proper to cause the entrance 'of sufficient volume of air to burn the gas without any other air-inlet. This is desirable because it causes the combustion to begin at the very front of the combustion-chamber, and thus supplies greater and more rapidly-acting heat to the boiler. The gas enters in a wide thin sheet, so that it mingles at once with the air and produces the most effective combustion, and when ignited the wide flame passes under the boiler and affords thereto a maximum of heat. By moving the 'plate 7 back on its seat, as above indicated, the gas-open ing may be partially or entirely cut o and the size of the flame thus regulated, as may be desired.

Divers modiicationsin the form and relativev arrangement of the parts of the mechanism may be made by the skilled mechanic without varying from the invention as stated in the following claims, each of which states an item of invention unqualified by peculiar limita- IOO tions expressed in the other. Thus it will be understood that I intend to claim, broadly, the

burner having a discharge end of "the shape air-inlet space around the burner, substantially as and for the purposes described.

2.` The combination, Wlth a gas-burner and valve-plate attached thereto, of a projecting piece rgidlyattached to the burner, a link pivotallr connected to the projecting piece, a lever engaging said link,said lever having a pivotal bolt passing therethrough, a separate piuprojecting from its side, and a slotted bearing'for the pin, Substantially as and for the purposes described.

LD, testimony whereof I` have. hereunto set my' hand this 10th dayof January,`A. D. 1891.

HUGH KENNEDY.

NVitnesses:

THOMAS W. BAKEWELL, W. I?. Comm,

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