US1252709A

US1252709A - Lamp-burner.

Info

Publication number: US1252709A
Application number: US13129416A
Authority: US
Inventors: John W Mccrone
Original assignee: Individual
Current assignee: Individual
Priority date: 1916-11-14
Filing date: 1916-11-14
Publication date: 1918-01-08
Anticipated expiration: 1935-01-08

Description

J. W. lVIcCRONE.

LAMP BURNER.

- APPLICATION FILEDNOV. I4. 1916.

Patented Jan. 8, 1918.

WITNESSES I W'NW' ATTORNEY ED STA JOHN w mesons, or MULDOON, crazies,

IaAMP-BURNER.

Specificati on of Letters Patent.

Patented Jan, 8, 1 918,.

gppliqa tion filed November 14, 131( Serial No. 131,294.

To all whom it may concern: 7

Be it known that I, JOHN V. McCRoNE, a Citizen of the United States, residing at. Muldoon, in the county of Fayette and State of Texas, have inventedcertain new and useful Improvements in Lamp-Burners, of which the following is a specification.

This invention relates to lamp burners.

' Que o h m n i c of h in en ion i to pro ide p bu n r o mple con.- struction and operation having means for supplying air to the lamp flame so as to in-v sure proper combustion and a maximum of light produced by the flame.

further object is to provide means for directing a current of air upward along the wick tube into intimate contact with the flame, such means being provided with de? vices for maintaining it in proper position relative to the wick tube. A further ob ject. is to provide an air conducting and supplying-'- means wh ch may be produced at very small cost and may be quickly and easily applied to a lamp burner of standard construction. Still further objects will ap pear from the; detailed description.-

In the drawings:

Figure 1 is, a top. plan view of a lamp burner constructed in accordance with my inv ntion with the flame cone turned back.

Fig; 2 is a detailed front perspective viewof he air conducting casing,

Fig is} an underneath view ofthe air conducting casing. and V Fig. 4 is a detail plan view of the blank frorn'wliich the airconducting casing is formed. I,

The burner is provided W-iththe usual chimney gallery 1 and resilient chimney securing arms 2. The wick tube 3 extends upward above the perforated dis-k4 lei-the usual manner, being positioned at the center of the burner. This tube is formed from a sheet metal blank which is bent intoproper shape and has its adiacent edges secured together by a seam or bead-joint 5. The wick may be moved vertically through the wick tube 3 by means of the usual star wheels 6 operated by the wick ratchet 7. The burner so far described is of a standard and well known construction.

Mounted about the wick tube 3 is a sheet metal casing or duct 8. This casingis of approximately elliptical shape and is, when in operative position, concentric with the wick tube; In producing the casing 8 I rs o -m. bl k su h a s o n in F g-'4; of the drawings having the central upwardlyarched portion 8 and the two end upwardly arched portions 8*, and the intermediate downwardly arched portions 8, at, its; upper edge, At its lower edge this blank is provided, at its longitudinal center, with an integral downwardly directed tab having a central rectangular recess; 10 and, a ea e th a t 11- he t o bs ll are so related that, when the end strips 12; of the blank are secured together by a bent or folded joint, as at 12 in Fig. 2 of the drawings, they produce a tab diametrically opos a d s m a to, he tab, 9', t t o. re: cesses 3v e ng co tig ou o f rec ss. im ar o the r ce s 10-, T is. blank fun han Pro i d, a sho t d s anc bove its lower edge, and at its longitudinal center, with a plurality of spaced apertures, 14 near each end, with similar apertures 14 Th s: b ank ben into. the orm sho n in Figs. 1 and 2 of the drawings, having its adjacent edges secured by a folded joint as at 12 in Fig.2, The two opposite tabs at the sides of the casing orduct formed are thenturned inward at right angles. These two tabs; are of such length as to fitsnugly against the side faces of the wick; tube, the ec s f o e of the. tabs fi g a t the folded joint; 5 of the wicktub 3, as, in Fig, lof the drawings. This serves to Secure the air duct in proper adjustmen both trans; versely and longitudinally relatively to the wick tube. A cut or slit is provided the blank from which casing 8, formed, adjacent; each side of tab 9, and the inner side Of each tab 11, By this means, when the tabs are folded inward their under-faces are flush with the lower edge of the casing so that, when the casingis in operative position, its lower edge will rest snugly againstthe upper face of perforated disk 4. In this position the tabs serve to cover or close the perforations through disk 4 at the sides of the wick tube 3 so as to prevent air from flowing upward through the disk along the sides of the wick tube, the air necessary to cool this tube being supplied through the

perforations

14 and 14 of casing 8.

The air duct or casing 8 causes the air supplied through the perforated disk 4 upon which it rests at each end thereof, to pass upward toward the upper edge of the casing where it flows inward directly and toward the wick tube 3 mixing thoroughly am aware,

with the oil vapor from the'wick. There-V sult of this mixing of the air and oil vapor by this means is the productioirot a very brilliant flame of great illuminating power with no increase in oil consumption, on account of the very complete combustion. of the oil vapor.

As will be noticed vfrom Fig. 2 of the drawings, the casing has its upper side edges of arcuate shape and curving downwardly toward each end of the casing from the longitudinal center thereof. This results in the ends 0]": the casing being somewhat lower than the center of the casing so that the lamp flame, in its endeavor to extract the,

maximuinainount of oxygen from the air, will tend to spread downward from each end of the wick tube, thus producing a very broad rounded flame having a relatively large surface and capable of producing a large amount of illumination.

A flame cap 16 is hingedly secured to the burner base as at 18; This cap is provided with the usual transversely extending slot 19 for the flame and acts to insure a steady and clear flame and to supply air to the flame above the top of the wick, in the usual manner. In normal position this cap is secured over the wick tube 3 and'casing 8 by means of a spring hook or finger 20 which engages through a slot 21 formed in the burner base.

I am aware that it has been proposed to produce lamp burners having an air duct or casing mounted about the wick tube for supplying air to the flame but, so far as I it'has never been proposed to roduce a casing which is detachably mountedabout the wick tube and is provided with means-engaging with the tube for holding the casing in operative position, this casing being so constructed and shaped as to produce avery broad flame of maximum illuminating capacity.

\Vhat I claim is: r I -1. In a lamp burner, the combination of a wick tube provided at thecenter of one side with a vertically extending scam, and

Copies of this patent may be obtained for a casing mounted about the tube in spaced relation and concentric therewith provided, 50.

at the center of the lower edge of each side, with an integral inwardly turned tab having a recess adapted to snugly receive the seam of the wick tube, the upper edge of each side of said casing being of arcuate shape and curving downwardly from the longitudinal center of the casing toward the end of the casing. 1 a

2. In a lamp burner, the combination of a wick tube provided at the center of one side with a vertically extending seam, and a casing mounted about the tube in spaced relation and concentric therewith provided, at the center of the lower edge of each side wall, with an integral inwardly extending tab having a recess inits inner end adapted to snuglyengage about the seam of the wicktube, the casing being further provided with a plurality of spaced apertures in each side and having the upper edge of each side wall of arcuate shape and curved downwardly from the longitudinal center of the casing toward each end of the casing;

3. An attachment for lamp burners comprising a casing adapted to be mounted in concentric space relation to a wick tube hav ing at the center of the lower edge ot'each side wall an inwardly extending tab provided with a recess in its inner end adapted to snuglyreceive the seam of a wick tube, the under faces of said tabs being flush with the lower edge of the casing whereby the lower end of'said casing will rest directly on the gallery of a lamp burner when in operative position, said casing having the upper edge of each side wall of arcuatei shape and curved downwardly from the longitudinal center toward each end of the casing. v i I In testimony whereof I affix my signature in presence of two witnesses.

Witnesses:

W. T. Jones, \V. P. IRY,

five cents each. by a'ddressingthe Commissioner of Patents, WashingtoinD. 0.?

JOHN w. iuccnonni