US1536004A - Color lighting attachment for reflectors - Google Patents

Description

April 28,1925. 1,536,004

P. M. HOTCHKIN COLOR LIGHTING ATTACHMENT FOR REFLECTORS Filed Feli. 24, 1920 Patented Apr. 28, 1925 UNITED STATES PATENT OFFICE.

PAUL-ML HOTCHKIN, O'l CHICAGO, ILLINOIS, A'SSXG'NOR- TO THE NATIONAL X-RAY REFLECTOR COMPANY, OF CHICAGO, ILLINOIS, A CORPORATION OF ILLINOIS.

COLOR LIGHTING ATTACHMENT FOB REFLEC'IORS.

Application filed February 24, 1820. Serial No. 360,822.

To all whom it may concern:

Be it known that'I, PAUL M. Hororrnrn, a citizen of the United States, residing at Chicago, in the county of Cook and State of 1llinois,'have invented certain new and use ful Improvements in Color Lighting At tachments for Reflectors, of which the following is a specification.

The present invention relates to the art of displaylighting and is m'oreparticularly concerned with instrumentalities for the production of colored effects in connection with such lighting. i

The primary object of the invention is to provide a novel form of attachment for the reflectors usually employed in display lighting, whereby to color the light rays emanating from the 1"etlectors, and thereby to obtain colored effects on the objects to which the light 'is directed.

A further Ob]8Ct of the invention is toembody such anattachmentfin the: form of an adapter that may be manufactured in standard form soas to fit standard reflec' tors, the construction being such as to enable its ready application to and removal fronrtliereflectors, and which, when so applied, Will permit access freely to be had to the interior-of the reflectors for cleaning the same or replacing the lamps used therewith.

Furthermore, the invention seeks to provide an attachment of the class referred to wherein the coloring media may be expeditiously changed when such is desired in order to modify the color scheme to meet varying requirements, and to so construct the attachment that it shall possess marked advantages in point of firstcost, maintenance, appearance and ease with which it may beprocured.

Other objects and advantages will appear 7 as the nature of the invention is better understood, the latter consisting substantially 46 in the novelconstruction, combination and arrangement of parts hereinafter fully de scribed, illustrated in the accompanying drawings, and finally pointedlout in the appended claims. 1 l 1 5o i rpractical embodiment of the invention is herein presented to disclose the adaptability of the same tothe purposes for which it is intended, but this disclosure for lighting fixtures equipped with a color attachment constructed in accordance with the present invention. i

Fig. 2 is a longitudinal sectional view thereof, as on the line 2 2, Fig. 1.

Fig. 3 is a transverse sectional view, parts being broken away as on the line Fig. 1.

teferring in detail to the accompanying drawings, the numeral 10 designates a reflector of standard form, commonly enrployed in display lighting, the same being of the parabolic type frequently used in the illumination of the display windows of stores and in the like localities. This reflector has the usual contracted neck 11 at its upper portion for encircling an electric light bulb and is, of course, open at its lower end for ready passage of the light rays reflected thereby.

As indicated, the present invention is an attachment for templates the employment of an adapter generally in the form of a rectangular frame 12 the top of which is provided with an enlarged opening '13 the dimensions of which are substantially the same as the dimensions of the open end of the reflector 10. Surrounding the opening 13 is an upstanding fiange 1 1 which is designed to fit the inner walls of the reflector 10 at its mouth and thereby to enable the adapter to be fitted to the reflector. The flange 14, when the frame 12 has been fitted to the reflector, also prevents relative crosswise movement of the adapter and the reflector, thus maintaining the color screen in proper position over the reflector to receive the light rays therefrom.

The adapter 12 is provided-with side flanges 15, a rear flange 16 which extends between the rear ends of the side flanges 15, and a front flange 17. The front flange 17 is of less width than the side and rear flanges 15 and 16, respectively, and this provides a mouth at the forward end of the adapter 12 for permitting introduction and coloring the light rays. emanating from the reflector 10. It coniii removal of the color screen to and from the adapter. This is designated by the numeral 18, and it may be made of glass, gelatin or other material suitable for the purpose and of the required color. For protecting the screen 18 against breakage it may be provided at its opposite sides with wire mesh fabric 19. This is especially desirable if the screens be made of gelatin or such material as is easily fractured.

The screen 18 is supported by horizontal inwardly extending guide flanges 20 formed at the lower edges of the side walls 15 and spaced :1 suitable distance below the top of the adapter 12 for facilitating free movement of the screen into and from the adapter. when inserted within the adapter the rear end of the screen will abut against the rear wall 16 and thereby be prevented becoming displaced at the rear end of the adapter.

To sustain the adapter 12 in assembled re lation with respect to the reflector 10 a supporting loop 21 is employed. This loop may he of any desired flexible material and is adapted to embrace the neck 11 of the reflector 10 as clearly illustrated in Fig. l, and to .fit over the upper portion of said rcflector. One end of the loop 21 has an attaching strap 22 which is suitably connected to the rear end of the adapter 12, a flexible coupling 23, preferably in the form of a coil spring, being connected to the other end of the supporting loop 21 and provided with a hook 24 adapted to engage an opening formed in the flange 17 at the front of the adapter. It will thus be seen that the adapter is yieldingly connected to and supported by the reflector 10, and by simply disengaging the hook 2 1 from the flange 17 the supporting loop 21 may be readily removed from about the neck of the reflector to permit detachment of the adapter from the reflector.

in the use of the hereii'idescribed invention sci-rams of the desired color are inserted in the adapter and thereby intercept the light rays emanating from the reflector .10. llilierently colored screens may be substituted from time to time in order to change the colored effects produced by the screens, and this may be accomplished by simply sliding the screen outwardly from the adapter, and thereby overcoming necessity of removing the adapter from the reflector for effecting such change. Access also may be readily had to the interior of the reflector by the removal of the color screen 18, either for cleaning the interior of the reflector or relamping the same.

For ventilating the attachment the top thereof is provided at its corners, and at points therein which lie at the exterior of the reflector when the. attachment is assembled then-on, with a plurality of open- These openings are in direct comings 25.

with the space above the munication screen 18.

I claim:

1. An attachment of the class described, comprising a supporting frame having an opening therein for passage of light rays, oppositely-disposed guide flanges arranged at the sides of said frame, a displaceable color screen supported by said guide flanges to intercept the light rays passing through said opening, said guide flanges providing an opening for the insertion of said screen accessible when the frame is in position on a reflector, and means for attaching said frame to a light reflector.

2. An attachment of the class described, comprising a supporting frame having an opening therein for passage of light rays, an upstanding flange surrounding said opening to adapt said frame to the reflector with which the same is associated, a color screen supported by said frame to intercept the light rays passing through said opening, and means for attaching said frame to said light reflector.

3. An attachment of the class described, comprising a supporting frame having an opening therein for passage of light ray-s, a pair of guide flanges arranged at opposite sides of said frame, a color screen slidably mounted on said guide flanges and adapted to intercept the light rays passing through said opening, said guide flanges providing an opening for the insertion of said screen accessible when the frame is in position on a reflector, means at one end of said guide flange for limiting movement of said color screen over said flanges, and means for attaching said frame to a light reflector.

4. An attachment of the class described, comprising a box-like supporting frame having an opening at one side for passage of light rays and provided at said opening with means for adapting the frame to the configuration of a light reflector, said frame also having oppositely disposed flanges and an opening affording access to said flanges, a color screen displaeeably mounted on said flanges to intercept the light rays passing through said frame and movable into and from the latter through said opening afford ing access to said flanges, the last-mentioned opening being accessible for insertion of the screen when the frame is in position on a reflector, and means for attaching said frame to a light reflector.

An attachment of the class described, con'iprising a box-like si'ipporting frame having an opening at one side for passage of light rays and provided with an upstanding flange surrounding said opening for fitting the configuration of a light reflector to adapt the supporting frame to the light reflector, said, f'ame also having oppositely of light rays emanating from saidreflector, said adapter having means conforming to the configuration of the reflector to fit the adapter thereto a color screen di-splaceably mounted in said adapter to intercept the light rays passing therethrongh, and means for detachably connecting the adapter to the light reflector.

In testimony whereof I have hereunto subscribed my name in the presence of two sub- 20 scribing witnesses.

PAUL M. HOTCHKIN. lVitnesses ESTELLA WOLFE, FRED J. STIER.

Images