US1157075A - Electric-lamp socket. - Google Patents

Description

Patented Oct. 19, 1915.

C. D. BLACKBURN.

ELECTRIC LAMP SOCKET.

APPLICATION FILED APR. 21. 1914.

r nX 4 r 1 V ,State of Colorado,

UNITED sTATEs PAT NT orincs CHARLES D. BLACKB TRN, OF LIME, COLORADO.

ELECTRIC-LAMP sooner.

- vided with improved contact wires which have their outer ends formed into sharpened penetrating points so that when the socket I is placed between a pair of electric wires,

the sharpened points may be pressed through the insulating cover andengage the wires embedded therein.

Another object of the inventionis to provide a socket of 'the removable type which is so constructed that it may be easily connected with and disconnected from theelectric wires, but which is so constructed that it will be securely held in place when connected with the W-ires.

This invention is illustrated in the accompanying drawings wherein Figure .1 is a. view in elevation showing the socket connected with the conducting wires; Fig. 2 is a vertical sectional view through the socket; Fig. 3 is a top plan view of the socket.

The socket 10 is formed of porcelain, or any other suitable material, and resembles in .its general construction an ordinary lamp socket, the socket being provided with an opening in which the usual threaded liner 11' is placed so that the incandescent bulb 12 may be screwed into the socket. It is of course obvious that the bulb may be removed and a'-plug connected with wires substituted for-the light bulb. The uppelzend portion of the-socket is formed into a neck 13 which is of less width than the socket and is provided with a head 14 having depending arms 15.

These arms 15 form pockets 16 which re-' semble bayonet slots so that the conducting wires 17 may be engaged by the socket and the socket suspended from. the wires as shown in Figs. 1 and 2.

The contact Wire 18 extends through an opening formed in the neck of the socket,

Specification of Letters Patent.

of which the following is a Patented cat. 19, 1915.

Application filed April 21, 1914. Serial No.'833,539.

and is held in place ,by a nut19 which fits an opening closed by wax or other suitable substance 20 after the nut has-been screwed tight. The wire 21 has its inner end secured to the contact 18 adjacent the head 92 thereof, and is carried through an opening formed in the neck of the socketto an openring formed in the head of the socket. The wire is then bent to extend along the bottom of the opening and is passed through an 'openingformed in the head of the socket into-one of the pockets 16. After-the wire 2l-is passed into the pocket 16, wax or other suitable substance23, is placed in the opening formed in the head of the socket so that the wire will be securely held in place. The.

second wire 24 has its inner end formed into an enlarged head 25 which engages, the threads of the sleeve 11, and is then passed through an openingformed in the nee-k of the socket to an opening formed in the head thereof, and isthen bent to extend through an opening formed in ond pocket 16. Vax or other substance 26 is also provided to hold the econd wire 24 in place. The outer ends of the wires 18 and 24 are sharpercd to form penetrating pins 27 which will easily penetrate the'insulation the head into the secof the conducting wires 17 and engage'the wires, thus permitting the through the socket to illuminate the lamp. l2. WVhen-tlns device is in use, the w1res'17 are separated at the point where it is desired to connect the socket and the head and neck of the socket are passed between the wires. By having the neck and he id tapered as shown in Fig.1, the wires will be separated as the head and neck are pressed between the wires, and therefore the head and neck current to flow can be easily passed between the wires. Af-

ter the head and neck have been passed between thewires, thesocket is turned to the position shown in Fig. l movcinto the pockotslG. The socket is then drawn downwardly so that the pins 27 will penetrate the insulating of the wires and engage. thewires as shown in Fig. 2.

When .it is desired to remove the socket, wires 17 may be grasped and the socket moved upwardly and then turned and" slipped from between the wires. From an lnspectlon'of Fig. 2, it will be readily seen that the pins 147 form very small openings in the insulation of the wires 17, and that,'

and the wire will I therefore, the insulation will not be damaged and thus the danger of the wire 1 becoming crossed is prevented.

What'is claimed is i 1. A socket provided with a neck terminating in an enlarged head overhanging the body portion of the socket and terminating in fingers extending in spaced relation to the neck to provide pockets, contacts positioned in said pockets, and conductors leading from said contacts through said neck and through said head having their outer end portions extending into said pockets sharpened.

2. A socket provided with a neck terminating in a head extending beyond the neck and having depending fingers extending in spaced relation to 'the neck, said socket being provided with passage ways leading through said neck and through said head across said fingers and having their end portions extending downwardly and com- Gopies of this patent may be obtained for nating in municating with said pocket, contacts positioned in said socket, and conductors leading from said'contacts through said passageways into said socket and having their outer 7 five cents each, by addressing the Commissioner of Patents,

Washington, D'. G. a

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