US1013681A - Lamp-socket. - Google Patents

Description

4R.W. OSLAND & M. J. HUGGINS.

LAMP SOCKET.

APPLICATION FILED MAY 19, 1909 Patented Jan. 2, 1912.

UNITED STATES PATENT orrroa RICHARD W. OSLAND, or PLAINEiELfD, NEW JERSEY, AND mnnron J. nueems, or

BROOKLYN,

NEW YORK.

LAMP-SOCKET.

I Specification of Batters Patent.

To all whom it may concemi v Be it known that we, RICHARD W. OSLAND and MEnIoN J. HUGGINs, citizens of the -United States, residing at Plainfield, Union county, New Jersey, and BrooklymKings county, New York, respectively, have incostly binding screws which would otherwlse require tools to connect the necessary circuit wires as will be more fully described in the followin specification, set forth in the claims an shown in the drawings, where:

Figure 1 is a perspective view of the im-' roved socket with the'cap removed. Fig. 2 is an elevation of the socket. Fig. 3 is a vertical sectional view. Fig. 4 is a side view of the metallic shell. Fig. 5 is a perspective view of the uniting key.

The body 5 of the socket is preferably made of some substantial non-conductive material such as porcelain or glass and has a cap 6 of similar material to be fitted upon the upper end of same and the two to be locked to ether by means of a key 7 which may also e of non-conductive material such as vulcanized fiber but preferably of metal as the latter is stronger and as it is in no way adjacent any of the metallic connections is in consequence notliable to interfere with the functions 'of the socket. This key has two heads which'enter similar keyways 7' in the'socket and the cap and holds'the two together. The socket has an interior .recess 8 to contain a metallic shell9 cemented therein as usual screw threaded toy-receivethe ordinary incandescent lamp and having surface of the body 5 and through the parallel grooves 17- and 18, the pins 10 and 1 1 passing up through the vertical passages 16. and 19, and in the under surface of the cap ins.

,7 The electrical connection may be easily made by removing the cap andlforcing the covered wire down on the pins which will perforate the insulating fabric and make the metallic connection. The cap is then reing key, thefeed wires being thus held in until the key is withdrawn. It; is thus"unnecessary to strip the wires of their insulae tion to insert the bared wireunder the screw head after the manner now usual and necessary with all lamp socketsand receptacles,

connection with the live feed wires. The

the central contact of the lamp and the cireuit is'completed through the'filament an the metal shell 9 and the circuit is completed the pins 10 and 14. To remove the wires the key 7 is removed and the cap lifted so that the wires are freed.

making the necessary line construction the connectlons are quickly made with means tirelyv reliable and practical.

Particular attention is called to the s ecific form or shape of the pin 14, as t is form shown is absolutely necessary for accomplishing the purpose of this socket,and also to the non-conductive washer 11, its purpose and relative location to the other parts ofthe socket as it is absolutely necessary as a safeguard against-short circuits. The circuit wires are shown' connected with the pins in Fig. 3. i It is obvious that the details of this device may be modified and otherwise arran ed without departin tures above descri ed.

VVhat-we claim as new and desire to secure by Letters Patent is:.

a socket of non-conductive material having Patented J an. 2, 1912. Application filed May 19, 1909. Serial No. 496,897. 7 I

are two depressions 20 'for the ends of the placed and locked to the socket by the unit-' place andonto the, pins and *not released.

through the same to the wires by means of" It will thus be seen that this socket is simple and substantial and while effectual in that are quickly operated, very cheap, en-

1. In a lamp socket, the combination with the pins 10'and 14 extend-above the upperand at the same time providing a suitable metal. eyelet 21 makes the connection with from the essential ea,-

conductive material with a similar keyway in its lower side, a key to fit the keyways, a metallic shell for the socket and pins extend- 'ingfrom the shell to the top of the socket sectin'g horizontal grooves, of a cap of similar material having depressions 'comciding with the verticalpassages of the socket, a'

key witha double head to fit similar keyways in'the socket and cap, a threaded metallic shell, a pointed pin secured to the side of the shell andpassing up one of the pas-' sages, a second pointed pm of angular form secured to the center metal eyelet of a nonconducting washer at the bottom of the shell and occupying the other passage, and a washer of non-conductive material to insulate the horizontal part of the second pin from the shell.

In testimony whereof we afiix. our signatures in presence of witnesses.

RICHARD W. OSLAND. MERION J. HUGGINS. Witnesses:

Monms FL'oRnA, JAMES F. DUHAMEL, MAE W. CLINTON.

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