US1387907A - Miniature lamp-socket for christmas trees - Google Patents

Description

r A. C. BECKER. MINIATURE LAMP 'SOCKET FOR CHRISTMAS TREES.

APPLICATION FILED DEC. I2. 1919 Patented Aug. 16, 1921.

UNITED STATES PATENT OFFICE.

ADOLPH C. RECKER, OF OAKVILLE, CONNECTICUT, ASSIGNOR TO THE CHASE COM- PANIES, INC., OF WATERBURY, CONNECTICUT,

A CORPORATION.

MINIATURE LAMP-SOCKET FOR CHRISTMAS TREES.

Specification of Letters Patent.

Patented Aug. 16, 1921.

Application filed December 12, 1919. Serial No. 344,429.

To all whom it may concern:

Be it known that I, ADoLrH C. BECKER, a citizen of the United States, residing at Oakville, in the county of Litchfield and State of Connecticut, have invented a new and useful Improvement in Miniature Lamp-Sockets for Christmas Trees; and I do hereby declare the following, when taken in connection with the accompanying drawings and the characters of reference marked thereon, to be a full, clear, and exact description of the same, and which said drawings constitute part. of this application, and represent, in

Figure 1. a plan'view of my improved miniature lamp-socket for Christmas trees.

Fig. 2. a reverse plan view thereof.

Fig. 3. a view thereof invertical central section on the line 3-3 of Fig. 1.

Fig. 4. a broken view thereof partly in vertical section on the line JP-41 of Fig. 1. and partly in side elevation.

Fig. 5. a detached view in elevation of the tubular eyelet.

Fig. 6. a reverse plan view thereof.

Fig. 7. an enlarged sectional View of the tubular portion of the eyelet after it has been flattened for gripping the bared fine wires of the socket cord.

. Fig. 8. an enlarged detached view of the tubular eyelet in longitudinal section after it has been flattened to grip the bared wires of the cord.

My invention relates to an improved miniature lamp-socket for Christmas trees, the object being to greatly reduce the cost of manufacturing these very small articles with out reducing their efliciency.

With these ends in View my invention consists in a miniature lamp-socket for Christmas trees, having certain details of construction as will be hereinafter described and pointed out in the claim.

In carrying out my invention as herein shown, I employ a screw-shell 2 located within a small circular socket-body 3 'of insulating material rounded at its upper and flat at its lower end. To prevent the shell from rotating within the socket, the open edge of the shell is made with an integral leaf turned upon itself to form an offsetting sleeve 4 which enters a recess at the lower end of a longitudinal groove 5 leading out of the side wall of the concentric circular chamber 5 formed in the socket-body 3 to receive the said shell. sleeve performs the additional function of receiving the bared fine wires 6 of the covered electric cord 7 which extends downward in the said groove'5 and alongside of the shell 2, almost to the flat lower face of the body. I thus avoid soldering the fine wires of the cord to the upper or inner end of the shell 2, as is commonly done. At its inner end the shell 2 receives a porcelain button 8 mounting a tubular rivet having a flange 9 and tube 10, the latter receiving the folded ends of the bared fine wires 11 of the complementary covered electric cord 12. After the folded ends of the bared wires 6 have been inserted into the tube 10, the outer end of the same is flattened as shown in Figs. 3, 4, 7 and 8 whereby they are firmly gripped. Supposing that there are five strands of fine wire in the cord, when they are folded there will in effect be ten strands for contact purposes as shown in Fig. 7. By the means described, I am enabled to secure good contact Without the necessity of soldering, which, in articles as small as these miniature Christmas tree lamp-sockets is time-consuming and therefore very expensive. The tube 10 of the eyelet is made long enough to project from the porcelain button 8 and, when flattened as described, not only makes close contact with the fine wires of the cord but also prevents it from being pushed out of the button in the direction in which it was introduced. Also, the bends of the wires being located within the unflattened inner portion 13 the tube forms a bunch therein to prevent the cord 12 from being pulled away from the eyelet and thence from the lamp-socket.

I claim:

A miniature lamp-socket for Christmas trees, having a socket-body made of insulating material and formed with a concentric chamber having a longitudinal groove leading out of it and terminating in a recess, a

screw-shell located in the said chamber and This entering the inner end of the said body and In testimony whereof, I have signed this passing through the said groove and having specification in the presence of two subits bared end entered into and secured in scribing witnesses.

the said tubular offset, a center contact in- ADOLPH C. BECKER. sulated within the inner end of the shell, Witnesses: and means for connecting the other terminal J. S. NEAGLE,

cord with the said contact. ROBERT A. WATERS.

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