US1413661A - Gas burner - Google Patents

Description

G. KEITH.

GAS BURNER.

APP'LlcATmN FILED sEPLis, 1921.

Patented Ap. 25,1922.

2 SHEETS-. SHEET i.

2 sIIEE'Ts-sIIEET 2.

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GEORGE KEITH, or LONDON, ENGLAND, AssIGNOE To JAMES KEITH & BLAOKMAN COMPANY, LIMITED, or LONDON, ENGLAND, A CORPORATION or GREAT BRITAIN.

GAS BURNER.

Specication Of Letters Patent. Patented Ap1r25, `1922.

Application filed September 15, 1921." Serial No. 500,730.

To all 107mm it may concern Be it known that I, GEORGE KEITH, a subl ject of the King of the. United Kingdom of Great Britain and Ireland, and residing at 27 Farringdon Avenue, London, England, have invented a certain new and useful Improvement in Gas Burners, of which the following is a specification.

rIhis invention relates to tubular gas burners of the type divided into two chambers the outer one of which has one or more longitudinal slots and at the inlet end ofthe inner one of which is arranged a valve adapte ed to allow part of the gaseous mixture ad; mitted to said chamber to pass direct to the Outer chamber and thence to the outlet or outlets, without passing through the inner chamber.

According to the invention the injector body or casting, which is screwed or otherf wise itted on to the endof the burner tube, is bent at a suit-able angle or inclined'to the axis of the burner tube, being preferably bent downwards, so as to clear the valve spindle which projects to the exterior of the burner tube, permitting the control of the distribution of the gas while the gas is actually burning; the bending downwards of the body of the injector serving also to reduce the lia-bility to fouling of the mixture by oven products passing out of the usual inspection doors when opened for observation.

In the accompanying drawings Fig. l is a vertical section of part of a gas burner according to theinvention in which the valve is constituted by a push and pull sleeve. Fig. 2 shows a modification in which the valve is constituted by a rotary sleeve. C

In the form shown in Fig. l the valve spindle 3 is disconnectible from the valve or sleeve 4L by turning up the inner end of the spindle 3 which passes through a hole in an extension 5 of the sleeve. The outer end In the form shown in Fig. 2 the inner end of the spindle 8 is split so as to form a T head 9 which engages with cross-cuts in the end of the sleeve 10 and is retained in enf gagement by means of a spring 11 pressing it inwards. In this form also the outer end of thespindle 8 is protected from tampering by an'eXtensiOn 12 of the gland, the outer end of the spindle 8 being squared Or suitv ably shaped so' as to be operable by a key.

In both forms the injector body or 13 is bent downwards.

With the constructions describedr and shown the distribution of the gas may be controlled while the gas is actually'burning.

With the injector body bent downwards, as indicated, there is less liability 'to foulcasting ing o-f the mixture byoven products which pass by the usual inspection doors and .would otherwise enter the inlet of the injector.v

I claim A tubular gas burner comprising an inner chamber and anl outer chamber, said Outer chamber being slotted longitudinally, a valve at the inlet end of said inner chamber, said valve-adapted to allow part of the gaseous mixture admitted to said inner chamber to pass direct to the outer chamber, said valve controllable from outside the burner, and an injector for feeding said burner, the body of said injector being inclined to the axis of said burner.

In testimony whereof I have signed my name to this specification in the presence of twoA subscribing witnesses.

GEORGE KEITH.

Witnesses: l

KATE FOTHERINGHAM,

ISABEL ROLLO.

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