US382605A - Collar for lamps - Google Patents

Description

(No Model.) I A. GOTTSOH-ALKV,

COLLAR FOR LAMPS. No. 382,605; Patented May 8 1888;

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Nv FIBERS Fholo'Liihcgmpher, Washington, D- G To all whom it may concern:-

Be it known that I, ANDREW GoTTscHALK,

UNITED STATES PATENT QFFICE.

ANDREW GOTTSOHALK, OF MARTINS FERRY, OHIO.

COLLAR FOR LAMPS.

SPECIFICATION forming part of Letters Patent; No. 382,605, dated May 8, 1888. i

Application filed June 9, 1887." Serial No. 240,744. (No model.) I

of Martins Ferry, in the county of Belmont and State of Ohio, have invented a new and useful Improvement in'Oollars for Lamps, Ste. and I do hereby declare the following to be a full, clear, and exact description thereof.

The object of my invention is to provide an improved collar forthe necks of oil reservoirs or founts of lamps, the construction being such that the collar is held very securely in place without the use of the cement heretofore commonly employed, and that oil is prevented from leaking around the collar. My invention is illustrated in the accompanying drawings, in which- Figure 1 is a vertical sectional view of the lamp and collar when connected. Fig. 2 is a horizontal section on thelinexxof Fig. 1. Fig. 3 is a side elevation of the collar detached.

My invention consists in a collar having an.

internal screw-thread, by which it is adapted to be screwed on the neck of thelamp, the collar being confined on the neck by having portions of its circumference forced into recesses lar projecting flange or rim, 4. When screwed in place, the rim 4 is pressed against the body of the fount very tightly and makes an oiltight joint. When thus fitted together, the

cheaply applied, without the necessity for the use of cement, it is held firmly to the lamp,

and is not in danger of being loosened or unscrewed when the burner is taken off. The

fact that the collar is not locked by a compres- 5 sion of aiportion of its body in the recess of the lamp-fount until after the collar has been secured in place enables a very tight joint to be made between the base of the collar and the fount, prevents loose motion of the collar, and affords security against leakage of oil.

I do not claim, broadly, a lamp having a screw-collar, nora lamp having a screw-collar with an annular flange at its base, since these have been known before; but

What I claim is-- A lamp whose neck is threaded and pro vided with an indentation or recess, 5, in combination with a threaded-collar of soft metal screwed on the neck and having a portion of 6 0 its body forced into the recess after the collar has been screwed on the neck, whereby the collar is locked, substantially as and for the purposes described.

In testimony whereof I have hereunto set my

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