US38263A - Improvement in coal-oil lamps - Google Patents

Description

A.JUDSON. .Coal Oil Lamp.

ML-38.263". a Patented A ril 21, 1863.

[722/673 for:

N. PETERS. Pmlq-mpo ra hu. Washington. D C- UNITED STATES PATENT OFFICE.

ANSON J UDSON, OF BROOKLYN, NEW YORK, ASSIGNOR TO HIMSELF, LEMUEL BEERS, AND FRED. W. BEERS.

IMPROVEMENT IN COAL-OIL LAMPS.

Specification forming part of Letters Patent No. 38,263, dated April 21, 1863.

T0 at whom it may concern.-

Beit known that I, ANSON J UDsoN, of Brooklyn, in the'county of Kings and State of New York, have invented new and useful Improvements in Lamps for Burning Kerosene, Petroleum, or Goal-Oil, of which the following is a specification. v

This invention relates to the cone, as it is technically termed, which is used in lamps of this class to deflect atmospheric air upon the flame, and thus secure to said flame the proper supply of oxygen to insure the proper combustion for illumination. These cones have before my improvement thereon been constructed of opaque metal, and as the apex of the cone was necessarily a very considerable distance above the lowest point of combustion, a very large portion of the flame was hid from view, and the light therefrom consequently lost.

My invention consists in. making the'cone of a combination of transparent or translucent material and metal, as hereinafter described, by which a much greater proportion of the flame is made available, and an equal amount of light realized from a less consumption of oil, or a greater amount of light from the same consumption.

In the drawings, Figure 1 is a plan of a cone made of mica, supported by a skeleton of brass. Fig. 2 is an elevation of it. Fig. 3 is a vertical central section of the same. Fig. 4 is a plan of a cone, the upper portion of which is made of mica, confined at the base between two rings of brass, or other suitable metal. Fig. 5 is an elevation of it.

In the construction represented in Figs. 1, 2, and 3 a skeleton frame is made of metal. This frame is composed of a ring at the base, an arched top, and two narrow strips at the sides to connect the arched top to the ring at the base, and also to furnish fastenings to secure mica sides. 0 is the base-ring. d is the arched top, and e e are the sides or strips which unite c and d. ffare the mica sides, which are secured in place by being slid in between the main portions of the strips 6 e and small portions of them, which are struck out from the main body, and turned sufliciently inward to allow the mica to be inserted. The form of the cone thus made is as nearly as may be the form of cones nowin common use upon this class of lamps, the frame being substantially what would remain after cutting from a metal cone of ordinary construction the greater portion of the sides.

In Figs. 4 and 5 the cone is represented as constructed by first forming a base, a, in two parts, which are securely fastened together after the edge of the mica top I) is inserted between them. The part b is made by first cutting it into proper shape with a die, and then bendin g it in to the form represented, the edges overlapping upon the sides of the cone. The lower edge is inserted between the parts of the base a, which are then secured by vertical rivets. The parts of the ring a are almost exactl y alike, the one being in appearance substantially a duplicate of the other. It will thus 1 be seen that a great advantage is gained by using these cones instead of the ordinary brass cones in common use.

I claim- The construction of the cone of a flat-wick kerosene, petroleum, or coal'oil lamp, partly of transparent'or translucent material and partly of metal, the two being combined together as hereinbefore set forth, or in manner substantially equivalent.

AN SON JUDSON.

Witnesses:

L. A. ROBERTS, H. JAMES WESTON.

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