US1560289A - Miniature lamp - Google Patents

Description

NOV

Filed April v 1924 J I w w M M W U d f AITORNEV WITNESSESv Patented Nov. 3,

f gUNIrED STATES JOHN L. NULL, OF JUNIATA, IENNSYLVANIA.

i MINIATURE LAMP.

Application nea April 7, 1924. serial No. 704,828.

toys and so forth and has for an object th*l provision of means which may be detach ably associated with the sockets of' ordinary Christmas tree electric lamps and with other miniature sockets to provide miniature lamp posts of an attractive and pleasing appearance.

Another object ol the invention is the provision of a post of the above character which may be made of soft, easily worked material to reduce cost of manufacture, reinforcing means being provided to stili'en the post and to provide a conduit for a conductor wire.

Another object of the invention is the provision of means for attaching the post to a miniature electric socket, the said means also serving to attach the post to a suitable support.

With the above and other objects in view, the invention further includes the following novel features and details of construction, to be hereinafter more fully described, illustrated in the accompanying drawings and pointed out in the appended claims.

In the drawings Figure 1 is an elevation of the invention.

Figure 2 is a vertical sectional view of the same.

Figure 3 is an enlarged elevation of the conductor which extends through the post and the contacts at opposite ends thereof, parts being broken away to more clearly show the structure.

Referring in detail to the drawings wherein like characters of reference denote corresponding parts, the reference character 10 indicates a miniature electric lamp socket, such as the socket usually found in Christmas tree lighting outfits and in which there is provided a threaded shell 11 and a contact 12 at the bottom of the shell. A conductor wire 13 is connected to the con tact 12 while a conductor wire 14 is connected to the shell 11, `thesaid conductor lamp within'the socket 10. It is obvious of course that other types o1" sockets are suit- Vable for the purpose and `may be employed.

In the present invention, instead of connecting the lamp directly within the socket 1U, there is provided a post 15 of suitable attractive configuration. this post is provided withma base 16A which is adapted to rest upon the top of .a support 17, while the socket 10 enters an opening 18 provided in the support, the walls ofthe opening and the upper end of the socket beslightly tapered as shown in Figure 2 so as to limit the entrance of the socket within the opening.

Extending from the base 1G is a threaded projection 19 which engages the threads of the shell 11 and which has extending therefrom a centrally arranged contact 20. This contact extends a suitable distance from an insulating plate or washer 21 which engages the lower end of the threaded extension 19 of the post 15 and which is adapted to engage the contact 12 so as to effect an electrical connection therewith. The contact 20 has secured thereto one end of a conductor wire 22 which extends upward through the post 15 and which is encased within an insulating cover 23. The opposite or upper end of the conductor 22 extends through an insulating plate 24 and has secured thereon a contact 25, the latter extending within the lower end of a lamp socket 26 provided upon the upper end of the post 15. The latter may thus support an electric lamp 27 whose contact 28 will engage the contact 25. Current may thus How through the conductor 13 of the socket 1() and through the contacts 12 and 20, the conductor 22, the contacts 25 and 28, through the filament of the lamp 27 and back to the conductor 14C through the post 15 and the shell 11, the post 15 being covered with suitable insulating material 29, for example insulating paint.

It is preferred to make they post of a soft cheap metal which may be easily worked so as to reduce the cost of manufacture and in order to stiften the base and provide a conduit for the conductor 22 there is provided The lcottom of I a stiffening sleeve 30. This sleeve extends substantially throughout the length of the base.

The invention is susceptible of various changes in its form, proportions and minor details of construction and the right is herein reserved to makev such changes as properly fall Within the scope of the appended claims.

Having described the invention what is claimed is o l. In a miniature electric lamp, the coinbination With a support having an opening M therein,v a lamp socket adapted to extend only partly Within the opening, a lamp post,

a Vbase extending from the post beyond the edges of the support opening and engaging said support, a threaded projection extending from the base tork engagement `with the socket to hold the latter in position and provide a support for the post, whereby the socket and post may be secured to the supopposite end of the standard, a reinforcing sleeve extending longitudinally Within the standard, an-'insulati'ng plate located at the bottom 'of the socket, an insulating` plate at the outer end ofthe extension, an electric conductor extending through .the reinforcing sleeve and having its opposite ends extending through the insulating plates and contact members at the outer ends of the` conductor and bearing` against the insulating plates.

ln testimony whereof I afiix my signature.

` JOHN L. NOLL.

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