US1152581A

US1152581A - Adjustable reflector for incandescent lamps.

Info

Publication number: US1152581A
Application number: US984015A
Authority: US
Inventors: Louis Weidlich
Original assignee: Individual
Current assignee: Individual
Priority date: 1915-02-23
Filing date: 1915-02-23
Publication date: 1915-09-07
Anticipated expiration: 1932-09-07

Description

. LOUIS WEIDLICH, OF STRATFOBCD, CONNECTICIIT.

ADJUSTABLE REFLECTOR FOR INCANDESGENTEAMPS.

Specification of Letters Patent.

Application filed February 28,1915. Serial No. 9,840.

To all whom it may concern:

Be it known that I, LOUIS WEInLIoH, a citizen of the United States, residing at Stratford, county of Fairfield, State of Connectiout, have invented 'an Improvement in Adjustable Reflectors for Incandescent Lamps,

of which the following is a specification.

This invention has for its object to provide a simple and inexpensive universally adjustable reflector for incandescent lamps which may be easily attached and detached and may be locked securely in any position relatigely to the lamp, in which it may be ace P With this end in view I have devised'the novel reflector which I will now describe, referring to the accompanying drawing forming a part of'this specification and using reference characters to indicate the several parts. 7

Figures 1 and 2 are views partly in elevation and partly in section illustrating the application of my novel reflector to the bulb of an incandescent lampand showing different adjustments of the reflector relatively to the lamp.

- My novel structure comprises a coil spring of special construction and clamping means for adjustably securing the spring to the reflector. I

10 denotes the bulb of an incandescent lamp, and 11 a reflector which may be of any ordinary or preferred shape 'or design.

My novel spring comprises two holding coils, indicated by 13, w ich are connected by a central coil 14 of greater radius than the holding coils, the purpose of which will presently be explained.

The clamping member comprises afstud 15 which is provided near one end with atransverse hole through which the spring is passed and is threaded atthe other end, a sleeve 16 upon the stud within the reflector and an ornamental nut 17 outside the reflector which engages the thread.

In assembling, the spring' is passed through the hole in the stud until the stud is approximately at the middle of the central section, then the sleeve is placed over the stud, then thestud is passed througha central hole in the reflector from the inner side and then the nut is turned onto the stud to lock the parts in place. The sleeve is shown as provided with a transverse groove 18 in oneend to receive the central section of the spring. This groove is not essential how'- ever to the. operativeness of the structure. The coils of the spring are made of suflicient size to yieldingly receive the bulb of the lamp between them and to receive. within their peripheries sufiicient of the curved cheeks of the bulb to retain the structure as a whole securely in place through such engagement. By providing the sprin with a central coil of greater radius than t e hold-- ing coils, I carry the point of attachment of r the spring to the stud entirely outside they path of movement of the teat 12 at the end of the lamp bulb in shifting the position of the reflector, as from the position shown in Fig. 1 to that shown in Fig. 2.

It will be readily understood that within the sphere of movement permitted by the size of the reflector there 15 no limit to the universality of the adjustment. The coils'2"- will slide freely over the surface of the bulb in placing the reflector in any required P081. tion, while theslight grip of the coils upon the lamp bulb is sufiicient to retain the reflector in any position in which it may be placed. By sllghtly loosening the nut, the central coil may be either oscillated in the stud or moved longitudinally therein.

.Having thus described my invention I claim A device of the. character described comprising a reflector, holding coils adapted to yieldingly engage the bulb of an incandescent lamp, a central coil continuous with and connecting the holding coils and of greater radius than said coils, a' stud through which the cent ral coil passes, a sleeve between the central coil and the re and a nut on the stud for locking the parts in Patented Sept. "1, 1915.

place, loosening of said nut permitting LOUIS WEIDLICH.

Witnesses:

H. W. MEADE, E. M. CULvnR.