US1210290A - Incandescent-lamp socket. - Google Patents

Description

G. H. FEICK.

INCANDESCENT LAMP SOCKET. APPLICATION FILED NOV. 29, ms.

v1,210,290. Patented 1360. 26,1916.

wmmw UNITED STATES PATENT OFFICE.

GEORGE HERBERT FEICK, 0F BALTIMORE, MARYLAND.

INCANDESCENT-LAMP SOCKET. 7

Application filed November 29, 1915. Serial No. 64,196.

To all whom it may concern:

Be it known that I, GEORGE H. FEICK, a citizen of the United States, residing in the city of Baltimore and State of Maryland, have invented new and useful Improvements in Incandescent-Lamp Sockets, of which the following is a specification.

This invention relates to electric cord pro- .tectors and more specifically to devices of this character for protecting an electric cord at its juncture with a fixture.

This invention has for its primary object to provide a device of this character slidable on the cord and provided with means for looking it upon the cord at the point subject to the deteriorating action.

My invention also includes resilient means for allowing the proper amount of flexibility between the cord and the protector.

Although in my drawings I have shown my protector cooperating with a lamp socket, it is to beunderstood that the same can be used independently of any particular fixture.

Referring to the drawings :-Figure 1 is a side elevation of the lamp socket showing my invention applied thereto. Fig. 2 is a longitudinal section through the protector showing a portion of the socket also insection. Figs. 3 and at are cross sectional views.

Referring to the drawings, the numeral 1 designates a casing slida'bly'on a sleeve 2 of taperin outline. Held in close contact with the sma ler end of the sleeve 2 by means of the inturned end 3 of the casing is one end convolution of a coil spring 4 shown encircling the cord 5 at. its juncture with the sleeve 2. The purpose of this spring A is to give the proper amount of flexibility to the cord, and at the same time preventing acute angles being formed in the conductor cord, which would tend 'to break the insulating material forming one element of the cord. This spring 4 has its remaining end convolution completely inclos'ed by an insulating bushing 63, that in turn encircles the cord. The sleeve 2 is provided with a slot 7 one wall 8- of which is arranged at an incline, and to engage an inclined end wall 9 of a locking key 10, the latter being of a size to snugly fit the slot. This locking key '10 is provided with abulged portion 11, disposed opposite an arcuate shaped depression 12 formed in the bore 13 of the sleeve that receives the cordfi'.

From this arrangement it will be seen that when the key 10 is forced home by means of the sliding casing l the bulgedportionll will force the portion of the cord into the de+ pression 12 with the result that the protector as a whole is held against movement upon the cord and thus insuring the protector being held upon the cord at the point of wear. As stated before the protector is Specification of Letters Patent. Patented Dec, 26, 1916,

shown associate with a lamp socket, but the same can be readily used independent of any fixture due to the fact of the gripping action between the cord and the sleeve which prevents relative movement of the protector and the cord. For attaching the sleeve to the lamp socket I provide the former with a threaded shank. 14 engaging the usual threaded extension 15 in one end of the lamp socket. Cooperating with the shank is the set screw 16 passing through the tubular extension 14 of the lamp socket 18 and shown binding against the threads of theshank.

' At this point attention is called to the fact that the bushing 6, spring 4 and casing 1 can be slid lengthwise of the cord independent of the sleeve so that the key 10 may be readily removed to allow the sleeve to be unscrewed from the lamp socket.

Obviously variouschanges could be made in certainparts of the device by one skilled in the art without departing from the scope and spirit of the invention.

What I claim as new is:-

1. The combination with an electric cord,

of a protector therefor including a semiconical sleeve having a longitudinal arcuate depression substantially centrally therein and extending lengthwise thereof, circular collars forme at each end in one piece with said sleeve and encircling the electric cord, a locking key .complemental to said sleeve and completing the conical contour therewith, saidsleeve having its ends abutting against said collars, a bulged portion on said key disposed opposite the depression in said sleeve, a casing snugly fitting over said sleeve and key and binding the same closely together with the bulge portion forcing the electric cord into said arcuate depression, and means for holding said casing in place about said sleeve and key.

2.- The combination with an electric cord, of a protector therefor including, a sleeve having a depression therein and a cut-away portion opposite said depression, integral collars at the ends of said sleeve encircling "the electric cord, one of said collars being together with the bulged portion pressing 10 beveled, a locking key fitted in the cut-away the electric cord into said depression.

portion of said sleeve and engaging against In testimony whereof I affix my signature tlie ingelr engls of Is)aid1c3llars, orfie end will in presence of two Witnesses.

5 0 sai ey eing eve e to con orm to t e beveled wall of said collar a bulged por- GEORGE HERBERT FEICK' tion on said key disposed opposite said de- Witnesses:

pression, and a casing snugly fitted over said C. ALBERT KQLLINGER, sleeve and key and binding the same closely AUGUs'r- DORR.

copies of this patent may be obtained for five cents each, by addressing the Commissioner of Patents,

Washington, D.

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