US1881663A

US1881663A - Lamp clamp

Info

Publication number: US1881663A
Application number: US442077A
Authority: US
Inventors: John J Kennedy
Original assignee: Pyle National Co
Current assignee: Pyle National Co
Priority date: 1930-04-07
Filing date: 1930-04-07
Publication date: 1932-10-11
Anticipated expiration: 1949-10-11

Description

Oct. 11, 1932. KENNEDY I 1,881,663

LAMP CLAMP Filed April '7, 1930 flfi [55- J 1. 5 B j IN V EN TOR.

Jaiwgyef fenneqy Patented Oct. 11,1932

UNITED STATES *P ATENTLoFFicE JOHN J. KENNEDY, OF CHICAGO, ILLINOIS, ASSIGNOR TO THE PYLE-NA'IIONAL COM- PANY, OF CHICAGO, ILLINOIS, A CORPORATION OF NEW JERSEY LAMP CLAMP Application filed April 7, 1930. Serial No. 442,077.

My invention relates to improvements in ported on the member A in which the lamp lamp clamps and'has for one object to prois adapted to be screwed. This socket 1s vide a clamp for a screw base socket for elecslotted at B B on opposed sides thereof. trio lights and the like wherein means are Each of these slots is inclined to the horizon- 5 provided for yieldingly holding the threaded tal and in line with the line of travel of the lamp base against rotation to hold it in place. thread. B B are U-shaped spring clamp- Another object of my invention is to proing members, each end or the U being vide a spring clamp or lock to hold a threaded socketed in pockets B in the member A, the lamp base in its socket wherein a spring eX- central part of the U being bent inwardly tends for an appreciable distance in a direcand penetrating through the slots B B into tion parallel with the threads on the base the interior of the socket. These interiorly whereby the spring member may penetrate penetrating portions of the U springs B are and engage the root circle. Other objects curved as indicated in Figure 5 so as to conwill appear from time to time throughout the form generally to the curvature of the lamp I specification and claims. base whereby when the lamp is screwed into My invention is illustrated more or less the socket, it engages these springs and diagrammatically in the accompanying spreads them so that the springs are under drawing, wherein tension and grip the lamp base to prevent Figure l is a side elevation in part section rattling loose of the lamp.

7 of the socket; I claim:

Figure 2 is a plan view of the socket; 1. In combination, a threaded socket for Figure 3 is a detail of the socket, a view he electric lights and the like, a locking spring ing taken placed 90 from the position of adapted to penetrate the socket and engage Figure 1; I the threaded lamp base, the spring having an Figure 4 is a detail similar to Figure 3; elongated bent arm disposed where it en-' this view being taken in the same direction as gages the base in line with the line of ad- Figure 1; Vance oi the thread, the spring comprising a Figure5 is a perspective view of the spring U-shaped structure, the two arms of the U support; being fixed in position, the central bent por- 30 Like parts are indicated by like characters tion being the part which engages the lamp throughout the specification and drawing. base.

A is a supporting base or housing, A an in- 2. In combination, a threaded socket for sulating ring encircling the housing and proelectric lights and the like, a locking spring jecting thereabove. A is an electric lamp adapted to penetrate the socket and engage bulb having a threaded base A A is a supthe threaded lamp base, the spring having an Y porting collar flanged at the bottom as at A elongated arm disposed where it engages the and perforated at A to be engaged by holdbase in line with the line of advance of the ing screws which lock this collar in position thread, the spring comprising a U-shaped on the base A. structure, the two arms of the U being fixed B B are terminal blocks on the base A havin position, the central portion being the part ing screw 13 to engage conductors. One of which engages the lamp base, such central these blocks is connected to the supporting portion being curved to conform to the conring A, the other to a spring contact finger tour of the base.

B on the base substantially concentric with 3. An electric light socket comprising a the member A. B is a threaded socket supsupporting member, a collar mounted there- 1 socket.

on, a threaded light base supported by the collar, the wall of the base being slotted, aU- shaped spring,- the ends of the U being socketed on the collar, theicentral portion of the U penetrating the slot to engage an electric light base, the U whei'e it engages the base being elongated and extending In line W1th the line of advance of the thread of thed Chicago, county of Cook and ois, thisBlst day of March 1930. a

' JOHN J KEITNEDY.

Signe