US2062772A - Lighting fixture - Google Patents

Description

Dec. 1, 1936.

M. E. SURFACE LIGHTING FIXTURE Filed Dec. 23, 1935 2 Sheets-Sheet I 23 I a 22 v 21 2 Dec. 1, 1936. 5 SURFACE I I 2,062,772

LIGHTING FIXTURE Filed Dec. 23, 1935 2 Sheets-Sheet 2 v fizz/en afar UETE LIGHTING FIXTURE Morris E. Surface, Waterbury, Conn, assignor to The Chase Companies, Incorporated, Waterbury, Conn, a corporation of Connecticut Application December 23, 1935, Serial No. 55,705

2 Claims. (Cl. 240-78) This invention relates to improvements in adjustment of the locking-sleeve 22 on the lighting fixtures, and more particularly to electric I threaded portion IS, the locking-sleeve will conlighting fixtures of the type known as ceiling ceal the externally screw-threadedportion l5. fixtures. The globe-hanger [9 has secured to its lower One object of this invention is to provide a end, a hanger-plate 25 to support a globe 26. 21 lighting fixture having improved means for prois a globe-holding or -locking plate adapted to viding adjustment of the globe-hanger and globe slide up and down on the cylindrical outer surrelatively to the light source used in the fixture. face of the globe-hanger l9.

With the above and other objects in view, this The construction shown in Fig. 3 is similar to 10 invention includes all improvements over the that shown in Fig. 2, except that a difierent form 10 prior art which are disclosed in this applicaof globe 28 is illustrated. In consequence of this tion. different form of globe, the position of adjustment In the accompanying drawings, in which cerof the globe relative to the light source or bulb tain ways of carrying out the invention are shown 18 is diiierent in Fig. 3 from that shown in F g- 2.

for illustrative purposes; In all of the figures of the drawings, the mode 15 Fig. l is a front elevation illustrating a lightof adjustment is the same. For example, it is ing fixture constructed in accordance with this merely necessary t grasp the c g-sleeve 22 invention; with the hand and rotate it to raise it a suitable Fig. 2 is an enlarged vertical sectional View distance above its locking position against the on line 2-2 of Fig. 1; and D 20 0f t e bea ger l9, whereupon by 20' Fig. 3 is a view similar to Fig. 2, but illustrating merely grasping he lindrical outer surface 01' a difierent form of globe and with the globethe globe-hanger I9 with the hand, the latter hanger shown'in a different position of adjustcan be rotated to adjust the same up or. down ment to carry the globe 26 or 28 up or down relatively 0 In the description and claims, the various to the light source l8, after which the locking- H parts are identified by specific names for consleeve 22 can be rotated by'hand to bring the venience, but they are intended to be as generic latter down against the top 25!. of the globein their application as the prior art will perhanger l9 to securely lock the latter in its deit, sired position of adjustment. 30 Referring to Figs. 1 and 2 of the drawings, Ill The invention may be carried out in other 30 is a lighting fixture of the ceiling type having a Specific ways than those herein set forth withcanopy H, a self-aligning coupling l2 and a out departing from the spirit and essential chartubular suspension-tube or stem l3, through acteristics of the invention, and the present emwhich the electric wires l4 extend, for the usual bodiments are therefore 'to be considered in all and well-known purpose. The suspension-stem respects as illustrative and not restrictive, and I3 has an externally screw-threaded portion l5 all changes coming within the meaning and of considerable length at its lower end. equivalency range of the appended claims are An electric socket I6 is adapted to be screwintended to be embraced therein. threadedly engaged upon the lower end of the I claim: 49 screw-threaded portion l5 and locked thereon 1. A lighting fixture including: a suspension- 40 by means of a set-screw H. The electric socket tube having an externally screw-threaded por- !6 is adapted to contain any suitable electric tion adjacent its lower end, the length of said bulb or other light source, such as IS. A tubular threaded portion being considerably greater" than globe-hanger l3 has its top or upper end-portion its diameter; an electric socket secured to the 2!] firmly secured to a threaded member 2 I, which lower end of said tube; a nut screw-threadedly en- '45 latter is screw-threadedly adjustable down and gaged on said externally screw-threaded portion; up the screw-threaded portion l5 toward and a sheet-metal tubular globe-hanger adapted to from the electric socket It. A locking-sleeve 22 house and extend above said electric socket and has an internally screw-threaded portion 23 having its upper end connected to said nut and a ap d to w hr y engage upon the adapted to be adjusted toward and from said 50 screw-threaded portion l5 and to engage against electric socket by rotation of said globe-hanger; the top 20 of the globe-hanger 19 to hold the and a locking-sleeve adapted to be screw-threadlatt fi y in a j d position. The lockingedly engaged on said externally screw-threaded sleeve 2 has an upward annular extension portion and having a recess in its lower face of so that regardless of t e up or down position of greater diameter than the diameter of said nut 55 and having a flange surrounding 'said recess and adapted to engage against the sheet-metal top of said globe-hanger.

2. A lighting fixture including: a suspensiontube having an externally screw-threaded portion adjacent its lower end, the length of said threaded portion being considerably greater than its diameter; an electric socket secured to the lower end of said tube; a nut screw-threadedls engaged on said externally screw-threaded portion; a cylindrical sheet-metal tubular globehange'r adapted to house and extend above said electric socket and having its upper end connected to said nut and adapted to be adjusted to-

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