US639372A - Reflector for incandescent lamps. - Google Patents

Description

N0. 639,372. Patented D80. I9, |899. E. F. GENNERT.

REFLECTOR FDR INCANDES'GENT LAMPS.

(Application led June 30, 1896.)

{No Model.)

`rrnn rnrns artnr i EMIL F. GENNERT, OF NEW YORK, N. Y., ASSIGNOR TO THE E. P. GLEASON MANUFACTURING COMPANY, OF SAME PLACE.

REFLECT'OR FOR INCANDESCENT LAMPS.

SPECIFICATION forming part of Letters Patent No. 639,372, dated December 19, 1899. Application filed .Tune 30, 1896. Serial No. 597,518. (No model.)

To @ZZ wir/m it may concern:

Beit known that I, EMIL F. GENNERT, a citin zen of the United States,residingin New York, (Brooklyn,) in the county of Kings and State of New York, have invented certain new and useful Improvements in Reliectors for Incandescent Lamps, of which the following is so full, clear, and eXact a description as will enable those skilled in the art to which my in vention appertains to make and use the same, reference being had to the accompanying drawings, in Which- Figure lis a perspective view of a reliector, showing one form of clamping-collar and supporting-arms included in my invention; and Fig. 2 is a similar view of another const-ruction of clampingcollar and supporting-arms detached. l

The object of my invention is to provide a side reflector for incandescent lamps with a clamping-collar adapted to be firmly secured on the socket of the lamp and connected to the reflector in such manner that the latter will be firmly held in fixed relation to the bulb of the lamp without engagin git or being liable to be brought into contact therewith by jarring or otherwise.

Referring to Fig. 1, A represents the side reiiector, which corresponds in shape to substantially one-half of the bulb of an incandescent lamp, and is to be of such size as to partially embrace the bulb and leave a space between them. n

C is a divided clamping-collar adapted to lit around the socket of' the incandescent lamp. The ends a and c of the collar are bent out at substantiallya right angle to the collar,

and one end is provided with a threaded opening to receive the threaded end of a screw d, which passes loosely through an opening in the other end of the collar. The head of the screw is slotted, as at f, for the reception of a screwdriver, and it is obvious that by turning up` the screw the collar can be firmly clamped on the socket.

B B are arms curved in opposite directions to correspond to the curvature of the reflector, to the inner face of which, at its upper end,

they are rigidly secured in any suitable manner; These arms are formed by splitting a strip of metal longitudinally for a portion of its length and bending one division thereof in one direction and the other division thereof in the other direction.

The uusplit portion h of the metal is rigidly secured to the collar O by riveting or otherwise, as indicated at b.

It will be observedthat in the construction described the clamping-collar and the arms are formed separately and rigidly connected one with the other; but, if preferred, said col lar and arms may be formed integral with each other, as shown in Fig. 2, in which they are shown as made from a single strip of metal, which is folded upon itself to make two plies of substantially equal length. These plies are riveted together between their ends, as indicated at h2, and the disconnected end portions of the two plies are suitably bent to form the collar O', while the other portion of the plies are split longitudinally, and the div visions formed thereby are bent in opposite directions to form the arms B B', which will be rigidly connected with the refiector A, as indicated in respect to the construction of Fig. l.

It will be observed that in both forms of the invention the connection of the collar and arms is a rigid one, and the arms are formed by splitting a strip of metal longitudinally a portion of its length and bending the divisions in opposite directions.

It will be readily seen that with either of the constructions shown and described the arms will form a very rigid support for the reflector, and, as in all cases they are rigidly connected to the collar, it will also be obvious that when the latter is firmly secured to the socket the reflector will be very firmly and steadily held in xed relation to the bulb, out -of contact therewith, and that there will be no liability of the refiector and bulb being brought into contact with each other by jarring or otherwise. The bulb will also be free to expand under the influence of heat without danger of being broken by pressure of the reflector or its support, which sometimes happens when the reflector is supported directly on the bulb.

Having described the invention, I claiml. The combination with a side reflector for an incandescent lamp, of an adjustable collar to fit on the lamp-socket, and a pair of oppositely-curved arms formed by splitting a piece IOO of metal longitudinally a vpart of its length, said arms being rigidly securedeto the upper end of the reector and the unsplit portion of the piece of metal being rigid with the collar.

2. The combination with a side reiiector for an incandescent lamp, of a collar to `fit thel lamp-socket and arms rigidly secured tothe upper end of the inner face of the reiector, said arms and collar vbeing formed integral With each other and said arms consisting of tWo plies of metal split throughout a portion of the length and bentin opposite directions 'and rigidly secured together yadjacent to the

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