US1239317A

US1239317A - Lamp-socket.

Info

Publication number: US1239317A
Application number: US?938916A
Authority: US
Inventors: George B Thomas
Original assignee: Bryant Electric Co
Current assignee: Bryant Electric Co
Priority date: 1916-04-06
Filing date: 1916-04-06
Publication date: 1917-09-04
Anticipated expiration: 1934-09-04

Description

Between the button 19 and the button 11 are arranged

coil springs

34 and 35 which may be engaged in position by seating them in appropriate wells formed in adjacent laces of the buttons. These springs serve to constantly force the button 19l outward. llhen a lamp is inserted however, its contacts bear upon the studs 17 and 18 and press the button 19 inward toward the button 1l, thus compressing the springs 34, 35.` During this movement the

spring contact forks

20 and 21 move upward on the plates Q6 and Q7, in wiping contact therewith, thus insuringa good electrical connection from the wire terminals to the studs 17 and-1 8,4v ,l

The casing as here shown comprises a cap 36 having a skirt 37 which tclescopically sleeves over the upper end of the shell 38. These parts are provided with suitable latching means 39 and 40, to prevent endwise separation and relative rotation of the parts, after the fashion lof the Goodridge Patent No. 958,626. At its lower end the shell 38 is provided with an inwardly projecting ledge 41. Resting upon this ,ledge is the outwardly extending shoulder 42 of the lamp-supporting sleeve 48. The outer end of the latter is recessed to afil'ord the. usual bayonet slot connection 44 for the l'ateral studs on the lamp base (not shown). This sleeve 43 is preferably provided with. on eX- terior threadedarea 45 on which works a milled ring 46 which serves to clamp the neck of a lamp shade 47 against the bottom of the ledge 41 of the casing shell 38.

This ledge41 also supports the insulating socket body vwhich is shouldered at 48 for this purpose. are a pair of bays 49 and '50 into which take a pair of tongues 51 and 52 stamped inward from the sleeve 43. Inasmuch asthe socket= body is held against rotation by the engagement of the stem of the switch key'33 with v its slot in the casing shell 38, the sleeve 43 is held against rotation through' its engagement with these

bays

49 and 50 in the outer face of the button 11. Corresponding

channels

53, 54, are formed in the floating button '19 to permit the latter to be passed into the sleeve 43 beyond the straps 51 and 52.

It is obvious that the sliding connection between the

parts

26 and 27 and 20, 21, may he variously modified to obtain the same relatively displaceable electrical connection and that these parts themselves may be modified in shape without departing from `the scope of my invention. The arrangement of the springs S4 and 35 may also be variously altered. 1t is unnecessary of course to provide the threaded area 45 on the sleeve 43 if it is notf'desired to secure a`Z shade to the lamp, and various other shade@ supporting means may be provided without departing from what I claim as my invention.

Opening below this shoulder i I claim as my invention z- I 1. An electric lamp socket of the Edi- Swan type having an insulating body, wire terminalsethereon, a floating insulating button at the lamp-receiving end of the socket, lamp-engaging contacts thereon, spring means tending to force said button outward, and sliding brush'means, allording constant electrical connection between said contacts and wire terminals, irrespective of the position of the floating button.

2. An electric lampv socket of the Edi- Swan type having an insulating body, wire terminals thereon, a floating insulating button at the lamp-receiving end 4of the socket, lamp-engaging contacts thereon, insulating spring means tending to force said button outward, and sliding brush means, affording constant electrical connection between said contacts and wire terminals, irrespective of the position of the loating button.

3. An electric lamp socket of the Edi- Swan type having an insulating body, wire terminals thereon, a floating insulating -button at the lamp-receiving end of the socket, lamp-engagingcontacts thereon,

and slidably connected conductorsfor constantly electrically connecting said contacts and wire terminals. 4. An electric lamp socket of thel EdilSwan type having an insulating body, wire terminals thereon, a floating insulating button at the lamp-receiving end Aof the socket, 1ampengaging contacts thereon, spring means tending to force said button outward, and slidably connected conductors for constantly electrically connecting said contacts and wire terminals, together with stop means associated with said rconductors for limiting the outward 'displacement of the button by said spring means.

5. An electric lamp socket of the Edi- '.Swan type having an insulating body, wire terminals thereon, a floating insulating button at the lamp-receiving end of the socket, lampengaging contacts thereon, spring means tending to orcevsaid button outward, and means for electrically connecting said contacts and wire terminals, said means comprising a pair of spring forks and a 'pair of coperating blades, one pair being electrically connected to the wire terminals and' the other pair to the lamp-engaging con tacts.

6. An electric lamp socket of the Edi- Swan type having an insulating body, wire .-terminals thereon, a floating insulating but- .ton at the lamp-receiving end ol the socket, lampfengaging contacts thereon, spring means tending to force said button outward, and means for electrically connecting said contacts and wire terminals, said means comprising a pair of springF forks and a pair of cooperating blades, one pair being electrisaid spring forks .bemg slotted and the.

Hades having studs working in said sotS to limit the extent of separation of said insuating body and button.

In tesfilnon.;V whereof I have signed my I name to thisy speccation two subscrlbmg Wltnesses.

Witnesses: l GILBERT W. GOODRIDGE,

H. M. WCHERT.

, in the presence of y .GEORGE B. THQMS. K