US1025742A - Pendent electric-lamp socket, &c. - Google Patents

Description

G. W. GOODRIDGB.

PENDENT BLEGTRIG LAMP SOCKET, am.

APPLICATION FILED JULY 21, 1909.

1,025,742. Patented May 7, 1912.

"'TERT Vf. GOIDRIDGE, Ol? BRIDGEPDRT, CONNECTICUT, ASSIGOR TO THE BRYANI @CTR-() COMPANY, AOlli' BRIDGEPORT, CONNECTICUT, A CORPORATION OF CON- PENDENT ELECTRIC-LAMP SOCKET, 65C.

Specification of Letters Patent.

Patented llllafy tt', Mill?.

Application Ied l.Tilly 21, 1909. Serial No. 508,764.

' Lamp Sockets, fxfc., of which the following is a specitication.

'lilly invention is especially applicable to pendent elect-ric incandescent lamp sockets, pendent switches and other such devices, which are adapted to be suspended from elect-rie conducting cords, and my invention consists ot an improved construction Where.- l" the ccnnection oit the bared ends of the with the terminal binding' posts is yved from the strain due to the weight- "he socket lamp and attachments or other suspended. e of the important features oit' my in- Avent-ion is to provide such a construction that it impossible to wire up the device without using` the strain relief feature.

ln the accompanying drawing' Figure l is -a side elevation of an electric vincandescent lamp socket constructed in accordance, with my invention, the outer inclosing' shell and cap with their linings being indicated by dotted lines; Fig. i). is a sectional View on the line l---/l, Fig. 4t, the wi-res being' indicated by dotted lines; Fig'. 3 is an elevation at rigl'it angles 'to Fig. 't. the wires, cap and shell being' omitted and the key stein being` sectioned; Fig'. l is a plan View or Fig'. 3; ltig'. 5 is a sectional view of suticient ot' apendent switch to illustrate the application et my invention thereto.

` Referring; to Fig-1s. l to 4. l have there illustrated my invention as applied to a lamp socket. which comprises au insulating' body il of porcelain or the like farryingg` any usual lamp holding' terminals. a switch key D. an inclosing outer shell l and cap -tll'l (l with the usual insulating linings 7) and c.

rlhe insulating' body may be in one or more parts as usual or convenient.y In the drawingr l have shown a socket of the well known Perkins type haring' the body formed ot' two insulating' buttons or blocks` a. and (.1. containing and mclosme' between them a suitable switch mechanism. which it is unnecessary to show. One o'l' the lamp holding' terminals 1n the -t'orm ot' the usuall screw shell is shown at E, while the center contact is indicated by dotted lines at lt in Fig. l. VThe terminal l'iimling posts for the baredends of the wires are illustrated at G, G1. rlfhese several parts, (except a certain portion et the insulating body, which l will particularly7 describe), may be of any usual or convenient construction.

The important. feat-ure oi .my invention Consists in forming' in one with, or attaching' to the top ol. the insulating body (in this particular typ-e .o'l socket, the upper button c.) a tubular extension or neck K, which forms a bushing' to pass through the neck ot' the cap C (Fig. l), and in the side walls of this tubular neck l form holes a, 7e. ot' a size sullicient to permit the passage of the covered parts oit' thc conductors W, Whose bared ends are to be conncctedto the binding posts (l, Gl. l prefer to form .these holes 1, 7c, diametrically opposite each other and considerably out of line with the usual grooves ,r/, g, in the sides of the insulating body leading' to the binding' posts G, so that the covered parts of the wires will have to go around several corners on the way from the binding' posts to their exit from thc tubular neck K, as will be readily understood from the drawings. Accordingly the wires are held with sufficient friction to relieve the terminal coi'mections of the wires 'from strain of the weightot' the suspended socket, lamp and shade, it used.

-lt will bc seen. that as the wires have to come out through the tubular bushing' K it is impossible to wire up this socket. without usinel the strain relief teature. rlhe strain is also brought upon the insulating' body and not upon the cap, as is the case with some strain reliefs.

To 'facilitate the wiring, l prefer to form the bottom ot thc opening' in the tubular neck with incliucd't'aces p, Fig'. to guide the ends ol the wires out through the holes when the wirc ends are tiret inserted through thc neck K.

ln Figi'. o. l have shown my invention applied to a pendent switch. A" being the insulating body. haringl iormed on or attached to the top a tubular neck K1, trnling a bushing' tor holc in the top of the usual metallic cover. and having-side holes 7:1' leading to the grooves y!" 'for the wires. clincd faces 'for the bottom of the hole in the insulating body carrying a tubular neck passing out through the inclosing cover und strain relief means between the wire terminals and the tubular neck.

2. A pendent electrical appliance, having un insulating body vrovidedwith terminals to which the suspending Wires are to be con nected, and an inclosing cover, the insulating body carrying :1 tubular neck passing out through the inclosing cover, ,and side holes through which the Wires pass to `the tubular neck, as and for the purpose described.

3. ,A pendent electrical socket, having an insulating body provided on its sides with terminals to which the suspending wires nre to be connected, and an inclosing cover, the

insulating body carrying a tubular neck passing out through the inclosing cover and l mesme side holes through which the Wires pass to the tubuiur neck7 us and for the purpose described,

el. pendent electrical socket couuprising un insulating body. provided on its sides with grooves und wire terminals, und un in- 'closing cover, the insulating body ceri-ying :i tubular neck passing oui: through the iuclosing' cover :ind side holes in the neck oui,

ot' line with the Wire grooves in the sidesv ut ilie insulatingbody.

A pendent electrical uppliuiuto, con1- pi'ising' :in insulating body, provided with wire terminals und :in inclosing cover, the insulating` body carrying' n luliului neel; passing outl through the iiiclnsinn cover :ind side holes in the neck. llic bottoni of this holes in the tubular neck having` inclined faces lending; to said side holes.

in tesl'iinoirv whereof l have signed my nfune to this :specilicutiom in the presence ol' two sul'iscribing' witnesses.

Witnesses:

H. W'. Gornsiionoueir, A. H. lonns.

Images