US442270A

US442270A - Device for attaching incandescent electric lamps to gas-fixtures

Info

Publication number: US442270A
Authority: US
Publication date: 1890-12-09
Anticipated expiration: 1907-12-09

Description

(No Model.)

N. MARSHALL. DEVICE FOR ATTAGHING INGANDESGENT ELECTRIC LAMPS T0 GAS FIXTURES.

Patented Dec. 9,1890.

INVENTDR ATTEET. m L

BY W

2 HIE ATTORNEYS- UNITED STATES PATENT O FICE.

NORMAN MARSHALL, OF BOSTON, MASSACHUSETTS, ASSIGNOR TO THE STAR ELEOTRIX COMPANY, OF PHILADELPHIA, PENNSYLVANIA.

DEVICE FOR ATTACHING INCANDESCENT ELECTRIC LAMPS T GAS-FIXTURES.

SPECIFICATION forming part of Letters Patent No. 442,270, dated December 9, 1890.

Serial No. 355.047, (No model.)

To ctZZ whom it may concern.-

do it known that I, NORMAN MARSHALL, of

Boston, in the county of Suffolk, State of Massachusetts, have invented certain new and useful Improvements in Devices for Attaching Incandescent Electric Lamps to Gas -Fixtures, of which the following is a description sufficiently full, clear, and exact to enable any person skilled in the art or science to which said invention appertains to make and use the same, reference being had to the accompanying drawings, forming part of this specification, in which Figure 1 is a vertical longitudinal section of my improved device; Fig. 2, an end elevation of the same, looking from the left in Fig. 1; Fig. 3, a top plan view; Fig. 4, a plan of the blank from which the device is constructed, and Fig. 5 a plan view showing a modification of the improvement.

Like letters and figures of reference indicate corresponding parts in the different figures of the drawings.

My invention relates especially to brackets for supporting incandescent electric lights on gas-fixtures; and it consists in certain novel features hereinafter fully set forth and claimed, the object being to produce a simpler, cheaper, and more effective device of this character than is now in ordinary use.

The nature and operation of the improvement will be readily understood by all conversant with such matters from the following explanation.

In the drawings, A represents the bracket considered as a whole. The bracket is preferably formed from a blank 13, (shown in Fig. 4,) cut or stamped from a single sheet of metal. Thisblank comprisesaflatbody-pieced,on one end of which a head f is formed projecting laterally at right angles to said body. The ends of the head are folded or curved upward toward each other, forming a loop, the outer surface of which is screw-threaded at g to receive the electric lamp. On the opposite end of the body d a plate 72 is formed, also projecting at rightangles to said body. This plate is bent vertically upward at 1'. at right angles to the body, and its ends bent or curved horizontally into a loop 75, adapted to inelose the base of the gas-burner. The ends of the loops are provided with holes or openings m to receive a binding-screw 19, whereby said loops may be clamped securely around said burner.

In the modification shown in Fig. 5 the head f is bent or folded around a screw t, composed of hard rubberorsimilarinsulating substance and adapted to receive the lamp-socket.

In the use of my improvement the bracket is adjusted on the lamp-burner by means of its clamp 7r, its body occupying a horizontal position. The lamp may be then t-urnedonto the threaded head f in the ordinary manner.

By forming the holder from a single sheet of metal, as described, a great saving of labor and in the cost of construction is effected. Moreover, the device is much more durable than when the head and clamp are formed separate from the body portion and secured thereto by brazing or similar means.

Having thus explained myinvention, what I claim is- A bracket for attaching incandescent electric lamps to gas-fixtures, constructed from a single sheet of metal out to form ahorizontal body portion, provided at one end with a head arranged at right angles thereto, said head being bent or folded upward to form a loop and exteriorly screw-threaded to receive the lamp, and at the opposite end with a plate bent vertically at right angles to said body and folded or curved upon itself to form a clamp for receiving a gas-burner, substantially as described.

NORMAN MARSHALL.

Witnesses:

K. DURFEE, O. M. SHAW.