US701303A - Gas-burner. - Google Patents

Description

Patented lune 3, |902. C. W. CURRIEH.

GAS BURNER.

(Application led Sept. 20, 1901.)

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(un Mdem ATTORNEY.

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SPECIFICATION forming part of Letters Patent No. 701,303, dated J une 8, 1902.

Application filed September 20,1901. Serial No. 75,843. (No model.)

,To all 'whom it r11/ay con/cern: l

Beit known that I, CHARLES W. CURRIER, a citizen of the United States, residing at Columbus, in the county of Franklin and State of Ohio, have inventeda certain new and useful Improvement in Gas-Burners, of which the following is a specification. n

My invention relates to the improvement of gas-burners of that class in which a plurality of burner-supporting arms are made to radiate from a central supply-head or valve-casing; and the objects of my invention are to provide an improved valve construction and` pilot-light whereby a comparatively small flame maybe maintained in position for lighting the various burners, to so construct and arrange my improved valve mechanism and pilot-light as to insure an increased iiame at the mouth of the pilot-burner tube when the main valve is operated to supply the gas to the burneresupporting arms, and to reduce the pilot-light after the iiame has been communicated to the burners. These objects I accomplish in the manner illustrated in the accompanying drawings, in which- Figure lis a vertical section of myimproved gas-supply head on line oc to' of Fig. 2. Fig. 2 is a sectional view on line fJ y of Fig. l.

Similar numerals refer to similar parts throughout both views.

In carrying out my invention I employ a gas-supply head or main valve-casing l having an upper end socket 2, into which leads the lower end of a vertical gas-supply pipe 3. From the lower end of the socket 2 leads downward a central port 4, which communicates with a central valve-chamber 5. From this Valve chamber lead radially outward pipearms 6, from which are adapted to extend upward burner-supporting arms 7, which may be surmounted by mantles 8 or other suitable burners. Leading vertically through the lower portion of the valve-casing or head l is the threaded stem portion of a needle-valve 9, the latter having a suitable enlargement IO on its lower end to facilitate the turning of the same. As indicated in the drawings, the upper and preferably conical end of the valve 9 is adapted to close communication between the port 4L and the chamber 5. The upper portion of the valve-body 9 is provided with a central vertical port or recess ll, the upper end of lwhich .is adapted to be made to communicate with the lower termination of the port 4, as shown. Leading into the lower portion of the internal port ll from the threaded outer side ofthe valve 9 is a short transverse port l2. Leading into an internally-threaded socket 13, formed in the lower portion and inner side of the head l, is a short horizontal pipe-arm 14, which at its outer end terminates in a vertical valve-casing head 143, the upper side of this casing-head receiving the lower end of a .vertical pilot-light tube l5, the communication between which and the interior of the valve-casing 14: is regulated by a needle Valve 16. Leading from the end of the pipearm 14 through the casing l to the periphery of the valve 9 is a horizontal port 17, the latter being adapted to register with the port or opening l2.

Although in the drawings I have for the sake of clearness in illustration shown but one of the burner-supporting arms 7 and one of the burners 8, it is obvious that one of these burner-arms and burners being supported from each of the pipe-arms G will result in the pilot-burner tube l5 being projected between two of said burners.

In the construction of my device the ports 12 and 17 are so located with reference to each other that when the valve 9 is in its innermost or closed position said ports will be out of direct communication, the only communication between the same being through the comparatively narrow grooves 12a, formed by the threads on the periphery of the valve. In case there is not, as ordinarily exists, sufficient play between the engaging threads the threads at this point may be slightly led to provide a passage for the gas. The gas which enters the head l from the pipe 3 and passes through the ports 4i, ll, and 12 and thence through the threadedgrooves to the port 17, arm 14, and pilot-burner tube l5 is sufficient to maintain a comparatively small fiame at the upper end of said pilot-tube and between the burners When the Valve 9 is turned, however, to the position indicated in the drawings-'that is, so as to inclose the port 4L and establish communication between the latter and the chamber 5 and admit the IOO gas to the burners 8-the ports 12 and 17 are in the first part of the operation of thus turning on the gas to the burners made to register one With the other. During the registering of these two ports it is obvious that a greater flow of gas is attained through the ports 11 and 17 to the pilot-burner tube 15, with the result that an increased flame is provided at the outer end of the latter, which Will serve to ignite the gas at the adjacent burners, the flame from these burners being communicated to the remaining burners. The operation of turning on the gas being continued, it is obvious that the ports 12 and 17 are again thrown out of direct communication, and the ioW ot' gas through said ports is sufficiently retarded to decrease the flame at the pilottube mouth.

From this construction and operation it will be readily understood that improved means are provided for maintaining a pilot or igniting flame in desirable proximity to the burners and that this flame is increased when ignition is desired. It Will also be seen that this operation of regulating the ame or volume of gas at the outlets of both the burners 8 and the pilot is controlled by one valve.

Having now fully described my invention,

what I claim, and desire to secure by Letters Patent, is"

In a gas-burner, the combination with a valve-casing; a gas-supply pipe leading down- Ward therein,said casing having formed therein an internal chamber and an inverted valveseat in the top of said chamber, and a port leading thereto; a vertically-arranged valve loosely mounted in the casing and controlling the vertical port said valve having a port in line with the port of the casing and adapted to be in communication therewith; said casing being provided with a port at right angles to the valves port; and burner-supporting arms radiating from the casing and in communication with said chamber; of a pipe extending from the casing in communication With its right-angled port; and a tube at right angles to the said pipe having a valveseat in its end, and a vertically-adjustable valve in the end of the pipe adapted to contact the seat in the tube and control the fiow ot' gas through the tube.

CHARLES W. CURRIER.

In presence ot- C. C. SHEPHERD, EDWARD M. TAYLOR.

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