US1107211A - Lamp-burner. - Google Patents

Description

G. G. BRIAND. LAMP BURNER. uruonmn FILED MAY 14, 1913.

1,107,21 1. Patented Aug. 11, 1914.

VV/TNESSES 1%. far 6 y 687 g TM- NORRIS PETERS W. PHOTD-LITHO., WIININOTDN, D- G UNITED STATES PATENT OFFICE.

CHARLES BRIAND, 0F REVERE, MASSACHUSETTS, ASSIGNOR TO PETER GRAY & SONS, INC., A CORPORATION OF MASSACHUSETTS.

LAMP-BURNER.

Specification of Letters Patent.

Patented Aug. 11, 1914.

Application filed May 14, 1913. Serial No. 767,588.

To all whom it may. concern Be it known that 1, CHARLES C. BRIAND, a citizen of the United States, residing in Revere, county of Suffolk, Commonwealth of Massachusetts, have invented certain new and useful Improvements in Lamp-Burners, of which the following is a specification, reference being had to the drawings accompanying the same and forming a part thereof.

My invention relates to what is known as long-time chimney burners, wherein a round wick is used, and wherein means are used to cause the flame thereof to burn in the shape of a flat flame.

The objects of my invention are as follows :To produce a lamp burner that will give a clear white flame burning constantly for several days with the smallest possible variation of candle power; that will develop the least amount of heat at the end of the wick without smoking; and that will reduce the amount of incrustation on the end of the wick.

Another object is to produce a steady flat flame of maximum candle power from a round Wick.

In the drawings accompanying this specification and forming a part thereof-Figure 1 is an elevation of the burner with the chimney attached; Fig. 2 is a vertical sectional elevation of the burner and chimney taken through the center thereof; and Fig. 3 is a sectional plan of the burner and chimney taken through line 33, Fig. 2.

In the drawings, 1 represents the body of the burner, which is provided with a threaded portion 2 for attaching it to the font of the lamp, and the upwardly extending portion 3 surmounted at the top by the gallery 4. The space in the body of the burner is closed by the diaphragm 5. Four spring clips 6, 6, 6, 6, are attached to the downwardly extending portion of the gallery a by rivets 7, 7, etc., at the flaring portion of their outer ends. The free portion of the clips extend downwardly, form a loop near the mid-portion, and then extend upwardly through the slots 8, 8, etc., formed in the horizontal portion of the gallery 4. These slots serve to keep the free end of the clips 6, 6 etc., in position, limit the inward and outward movement thereof, as well as their side movement. The purpose of this construction is to avoid having any outwardly extending rough portions outside the gallery of the burner.

A wick tube 9 is secured in the bottom of the body 1 and extends upwardly through the diaphragm 5 and has secured to its upper free end the cone portion 10 in such manner as to form a slightly cupping recess 11 around the top of the wick tube. This cupping portion is better shown in Fig. 3. The cone 10 has oppositely disposed holes, or air ports 12, punched out of it, the punch cutting three sides of the hole so that the portion cut out can be bent up as shown at 13, 13, forming flame spreaders oppositely located with reference to the upper end of the wick tube, as is better shown in Figs. 1 and 3. It will be noted that the space between vertical lines drawn from the lower edge of the cone 10 and the inner edge 14 of the gallery at is very slight. The purpose of this is to deflect the currents of air coming in through the four spaces 15, 15, etc., away from the burner so that the stronger portion of the air current will be deflected outwardly to the inner walls of the chimney.

The purpose of the cone 10, as before stated, i to prevent strong currents of air from getting at the upper end of the wick, the operation of the burner being as follows, (assuming the flame of the burner to be lighted) :Air currents flowing through the openings 15 into the body of the burner are prevented from flowing directly upwardly around the end of the wick by the cone l0, and the main current is deflected outwardly along the inner wall of the chimney and through the oppositely disposed ports 12 of the cone 10. The current passing upwardly through the ports 12 passes outside the flaring flame spreaders 13, thereby drawing the flame outwardly in opposite directions from the wick to spread it until it touches the flame spreaders 13, 13, thus producing a fiat flame from a round wick.

To support combustion below the top edges of the flame Spreaders 13, 13, suflicient air is drawn in to the flame from the currents passing up around the outer edges of the cone 10 to feed the flame and produce a clear, white flame, the cup portion 11 preventing the air currents from flowing directly to the portion of the wick immediately above the end of the wick tube, thus preventin combustion close down to the wick tube, t ereby leaving an unburned or uncrusted' portion of the wick through which the gas from the oil can escape to supply the flame after the top of the wick has become somewhat incrusted.

By cutting down the air supply to the wick at the point of combustion, less heat is generated than if the air was allowed to come easily in contact with the combustion end of the wick. The result of this lessoning of heat is a lessening of incrustation at the combustion end of the wick, resulting in a greater gas supply, and a more even candle power throughout the time the flame is burning than would be the case were strong and plentiful currents of air allowed to come in direct contact with the combustion end of the wick. This, applicant has demonstrated by exhaustive tests. By this construction I am enabled to produce and maintain a flame of medium candle power over a space of several days, without a very material decrease in the candle power of the flame.

I do not wish to confine myself to a shield 10 made exactly cone-shaped as illustrated, or to having a complete cone, for circular shields may be attached to the top of the wick tube extending between the flame spreaders 13, 13, on opposite sides of the wick tube without materially altering the results, and without departing from the spirit of my invention.

hat I claim is- 1. In a lamp burner, a body part; means for securing a chimney thereto; a wick tube secured in the body part; a truncated cone secured to the upper end of the wick tube in manner to form a cup-shaped depression surrounding the end of the wick tube; oppositely disposed flame spreaders secured to the upper edges of the truncated cone, said cone having two oppositely disposed air holes formed in it below and outside the flame spreaders so as to create a suction of air outside the flame-spreaders.

2. In a lamp burner, a body part formed to have a chimney secured to it; a ring secured to the top of the body part having a plurality of guiding holes formed in it; a plurality of flat chimney retaining springs secured to the said ring, said springs being bent in the form of a loop to extend downwardly, inwardly and then upwardly so as to extend through and be guided by the holes in said ring as specified.

In testimony whereof, I have hereunto set my hand, in the presence of two subscribing witnesses, th1s the 28th day of April, 1913.

CHARLES C. BRIAN D.

IVitnesses E. Y. Rooms, H. M. KnLso.

Copies of this patent may be obtained for five cents each, by addressing the Commissioner of Patents. Washington, D. G.

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