US873525A - Gas-burner. - Google Patents

Description

PATENTBD DB0. 1o, 1907.

J. W. PARNOPF.

GAS BURNER. APPLICATION FILED OCT. 10, 1906.

r l .MM fm@ support, taken on line -x Fig. 1.

lating-valve, taken on line y-fj, Fig. 2.

UNTTED sTATEs PATENT oFFioE.

.TAY W. FARNOFF, OF BUFFALO, NEW YORK, ASSIGNOR, BY MESNE ASSIGNMENTS, TO SHIRLEY M. STOWELL, OF ALBEN,4 NEW YORK.

GAS-BURNER.

Specification of Letters Patent.

. Patented Dec. 10, 1907.

Application filed October l0..1906. Serial No. 338.301.

To all lwhom it may concern:

Be it known that I, JAY W.` FARNOFF, a citizen of the United States, anda resident of Buffalo, in the county of Erie and State of New York, have invented certain new and useful Im rovements in Gas Burners, of which the ollowing is a specification.

My invention relates to gas-burners, and more particularly to pressure regulatingvalves therefor.

The objects of this inventionare, the production of a regulating-valve of simple construction which can be cheaply manufactured and wherein provision is made to positively retain the valve in any adjusted position; to so construct the valve that it can be quickly and conveniently regulated and whereby leakage of gas between the casing and the actuating-spindle is prevented.

To these ends, the invention consists in the construction, arrangement, and combination of parts to be hereinafter described and particularly pointed out in the subjoinedclaims.

In the accompanying drawings,-Figure 1 is an elevation of a complete burner ap lied to a fixture for use. Fig. 2 is avertica section of the bunsen lor mixing tube, its attached gas regulating-valve, and the mantle- Fi 3 is an enlarged vertical section of the gasgi'gu- 1g. 4 is an enlarged cross-section taken on line 2-z, Fig. l. Fig. 5 is a detached perspective view ofthe tension-spring by means of which the regulating-valve is maintainedin any adjusted position. perspective viewof the removable taper tube within the bunsen or mixing tube.

Referring now to the drawings in detail, corresponding numerals of reference refer to corresponding parts throughout the several figures. l

The reference numeral l designates the gas- I fixture through which the gas is fed to the burner; it being rovided with the usual cock 2 by means of w 'ch the supply of gas is shut off or turned on. This fixture may be of any design or form to permit of connecting the burner in position.

3 designates the bunsen or mixing-tube, 4 the gas regulating-valve, 5 the combined mantle-support and diffuser, and 6 the mantle held to said su port. Said mixing-tube is internally threadlad at its upper end to receive the threaded portion 7 of the gas regu- Fig. 6 is a detached mixing-tube by a shoulder 12 formed on the y latter against which the shutter bears.

The bore of the mixing-tube is cylindrical at both ends, but somewhat smaller in diameter at its lower end than at its upper end, and the intermediate portion' is tapered downwardly, as at 13, to connect the cylindrical ends by a gradual restriction. Fitting into said tube is a removable tapered-tube 14 having the same degree of taper as the intermediate portion of said mixing tube and extending down into the latter to a point even with or almost even with the lower end thereof. length and by reason thereof, is se arated at its lower end from the wall of t e mixing tube 3 by an annular space I5 gradually restricted upward to a point where tube 14 is in contact with the tapered portion of the bore in the mixing tube. Said tapered tube serves to compress the commingling gas andy air, and causes the gas to pass therefrom under higher pressure, which is highly essential when burning artificial gas, usually under considerable lower pressure than natural gas. It is apparent therefore, that by the use of said tapered tube, the pressure of the gas is increased previous to issuing from'the mixing tube, and burns with a blue flame.

Tube 14 is tapered throughout its This tapering tube also avoids back-hashing,

prevents flickering of they light, and carbonizing; due to the fact that the gas entering the mixing tube under low and uneven pressure issues therefrom under increased and constant pressure. When burning natural gas or any other gas under ahigh and constant pressure, the tube 14 is removed.

The lower end of the mixing tube is provided with an e'xternal threaded collar 16 engaged by the internal thread of the diffusing chamber 5 which has a depending tube 17 provided with a plurality of lugs 18 to be engaged by the mantle holder 20 to which the mantle is affixed. Within said diffusing chamber is a removable wire diffuser 19 through which the gas issuing from the mixing tube passes prior to being ignited. This diffuser, has been found by experiment to be very advantageous when using a low pressure gas, but when burning a high-pressure gas, it also may be omitted. Midway between its ends the mixing-tube has eXte-l riorly a collar 20a and a plurality of upwardly tapering lugs 21.

The globe-holder, designated 22, fits onto the mixing-tube and is held in frictional contact with said lugs to prevent turning or wabbling, while collar 2Oa supports said globe-holder. Passing through said globeholder are fastening-screws by means of which the globe 24 is fastened to said holder. The globe-holder and means of fastening the globe thereto may be varied, as it forms no part of my invention. The globe 24 is closed at its lower end, as at 25, and while the body or main portion may be of any shape or outline desired, I preferably enlarge the lower end beyond the adjacent portion of the body, as at 26, to form an internal restriction or bead 27, and in said enlarged lower end, a plurality of air-apertures 28 are formed through which the air is admitted to the interior of the globe. In this manner accidents, caused by particles of the mantle falling when accidentally j arred, are guarded against, and the direct inrush of air to the mantle is also prevented by reason of the restricted portion deflecting the air-currents to the sides of the mantle.

The regulating-valve easing has its lower end made conical, as at 29, and projects into the upper end of the mixing-tube so that its lower extremity terminates beneath the airapertures in said tube, thus causing the air to be drawn into said tube by the gas issuing from said valve-casing. Within the valvecasing is a needle-valve 30 adapted to be adjustedwith reference to the gradually restricted portion 31 of the bore 32 of said casing, and thus regulate the supply of gas to the mixing-tube. Said needle-valve has enlarged longitudinally grooved portions 33 -which bear against the interior of the valveeasing and guide the valve for Vvertical movement while permitting the gas to pass through said casing. Between said longitudinally grooved portions, a cylindrical portion 34 is formed in which is machined a circumferential groove 35 adapted to receive the crank-pin or eccentric studY 36 of an actual.- ing spindle 37 iitting into an opening 3S in the valve-casing. Said opening has a concaved portion 39, into which is seated the correspondingly shaped enlargen'ient 4;() on said spindle to form a gas-tight joint and prevent leakage of gas through said opening; said enlargement having an annular groove 4:1. into which fits the lower end of a retainer and tension spring 42 that has at its upper end an inwardly directed portion 43 bearing against the valve-casing. Said springr has its lower end `bifurcated,ias shown in lig. 5, to straddle the actuating spindle and between its ends has an aperture 4A: through which is passed a screw 45 that enters a threaded bore in the valve-casing. By loosening or tightening said screw, the tension el' the spring may be regulated to seat the enlarged portion of the spindle firmly against its s .at, and to maintain said spindle in anyv adjusted position. i

VIt is apparent from the foregoing; that upon rotating the actuating spindle, which has a milled head 4G to conveniently manipulate the same, the needle-valve is raised or lowered to the position desired.

Having thus described my invention, what I claim is,-

In a gas-burner, a valve-casing haring a chamber and an opening inits side, a verlically movable valve in said chamber provided with a circumferential groove, an actuating-spindle passing through said opening in the easing and having an eccentric stud entering the circun'iferenti al groove in said valve, said spindle having an annular groove in its projecting portion and a retainer vharing a lip at one cnd. bearing against the valvecasing, a bifurcated portion at its other end fitting the annular groove in said spindle, and a fastening screw passing therethrough between its ends and. entering the valvecasing.

In testimony whereof, I have allixed my signature in the presence of two subscribing witnesses.

JAY IARNOIPD Witnesses HARRY D. RAPP, EMIL NEUHART.

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