US1869823A - Lamp - Google Patents

Description

Aug 2, 1932. J, READER 1,869,823

LAMP

Filed Jan. 26, 1931 i Z Sheets-Sheet l g- 2, 1932- J. F. READER 2 v LAMP Filed Jan. 26. 1931 2 Sheets-Sheet 2 Patented Aug. 2, 1932 UNITED STATES PATENT OFFICE JULIUS F. READER, OF OAK- IPARK, ILLINOIS, ABSIGNOR F ONE-HALF TO WALTER G.

WARREN & 00., OF CHICAGO, ILLINOIS, A CORPORATION OF ILLINOIS, AND ONE- HALF TO JOHN W. BOOT, OF CHICAGO, ILLINOIS LAMP Application filed January 26, 1931. Serialv No. 511,119.

This invention relates to electric-lighting assemblies, and particularly to wall and coiling assemblies adapted to direct a confined beam to a localized area, as, for example, the

top of a desk, drawing board, or the like.

The invention has for its object broadly the provision of a simple electric lighting.

fixture which may be cheaply manufactured, easily installed, and securely held in position. The invention contemplates the employment of a spill ring assembly to confine the directed rays to a prescribed zone of light, and an important object of the invention is the construction mounting such a spill ring within the lighting fixture, the whole being easily adapted for installation in the ceiling with its presented face flush or substantially flush with the wall surface.

Numerous other objects and advanta es of 90 the invention will be apparent as it is etter The electric lighting fixture shown on the drawings comprises primarily a reflector or casing 11, secured at its edges, as will be presently described, into the room ceiling and provided with a light bulb receiving socket 12. This socket, in the present instance, is in two parts, screwed or otherwise secured together to provide shoulders 13 and 14 adapted to enga e and hold an inturned flange 15 on the reflector and a housing base 16 of sheet metal, this base being turned up around its edge into a flange 17. A housin cap 18 is telescopically engaged with the/flange 17 and these parts are conveniently secured together by screws19. A conductor cable 21 1s suitably let into the socket housing through a locking collar 22. The reflector is provided with a-rear cylindrical tube receiving port-ion 23'and is flared outwardly at 24 to a general parabolic shape. The inner face of the reflector is, of course, silvered or otherwise highly olished at 25 to increase the reflection an direction of the rays.

The fixture is preferably mounted in the ceihn or wall, as Will'now be described. A cylin rical sheet metal ring 31 is provided with a plaster engagin radially extending flange 32 and with a plurality of wire lath engaging lugs 33 spotwelded or otherwise'secured to the outer cylindrical face of the ring. A pluralit of nuts 34 are secured upon the outer face 0 the ring 31 by welding or otherwise and the ring is perforated in registration with these nuts for the reception of screws or bolts 35. The dimension of the rin is such that the reflector fits nicel with in it after thering has been installe in the ceiling wall structure. The screws or bolts 35 may be threaded through appropriately arranged openin s near the edge of the reflector and into t e holding nuts 34 already described. The reflector is also provided with a finishin outer flange 36 turned down at its mar ina edge at 37 for engagement with the p aster of the ceiling.

The spill ring comprises two inclined circular bands 41 and 42 supportedby spider arms 43, the spider arms belng bent at right angle at their ends at 44 and slotted as indieated in Fig. 3 at 45 to enga e down over the belts or screws 35. The racket arms, of which three are disclosed on the drawings, are slotted at 40 for interengagement with the outer spill ring 42 and are provided at the inner end with laterally extendin flanges 46 adapted for attachment at 4 with the presented face of the inner spill ring. The spill rings are preferably coated with a light absorbing material to prevent re s from the lamp bulb being directed outsi e the prescribed or desired margins of thebeam.

It is thought that the invention and many of its attendant advantages will be understood from the foregoing description, and it will be apparent that various changes .may be made in the form, construction and arrangement of the parts without departing from the spirit and scope of the invention or sacrificing all of its material advantages, the form hereinbefore described being merely a preferred embodiment thereof.

I claim:

1. In a lamp assembly, the combination of a securing ring having parts adapted for attachment to wire lath and a flange for engagement with the face of a Wall or ceiling, fastening devices arranged through said ring, and a reflector adapted for insertion Within the 'ring and 'to be engaged by said fastening devices.

2. In a lamnasselnbly, the combination of a securing ring having parts adapted for attachment to Wire lath and a flange for engagement with the face of a Wall or ceiling, fastening devices arran ed through said ring, a reflector adapted i 01 insertion within the ring and to be engaged by said fastening devices, and a spill ring assembly separately connectible in said reflector.

JULIUS F. READER.

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