US2536355A - Extension light for use with flashlight batteries - Google Patents

Description

v. L.. cox 2,536,355

EXTENSION LIGHT FOR UsE WITH ELASELIGHT BATTERIES Jan. 2, 1951 Filed July l2, 1949 llllllllllllllllllllllllllllllllllll I lllllllllllllllllllllllllllllllllllllll 1,

INVENTOR. VL. 70x BY 91M ATTORNEYS Patented Jan. 2, 1951 EXTENSION LIGHT FOR USE WITH `vIIiASIcILIClIIT BATTERIES M Vernon L. Cox, Texarkana, Tex. 'Application muy 12, 1949,*se1-ia1N0. 104,221

iClam. 4 .1 This invention relates to electric extension 'lights.

An object of this invention is to provide an extension light which is designed for use with llashligltbatteries, or electric lanterns or the like for previding a `portable 'iight Awherein the light rays are diiused.

Another object of this invention is to provide an improved light bulb which is removably encased in a frosted glass globe, the light bulb being centrally supported within the globe by means of a tubular element which is frictionally secured in the shank of the globe so that the bulb and support may be removed for replacement of the bulb.

A further object of this invention is to provide an extension light structure which uses a low voltage light bulb encased in a globe adapted to be mounted in a conventional light socket, the globe being in the form of a frosted light bulb having a screw threaded base with the inner end of the neck or shank cut off to permit insertion of a small bulb and socket within the body of the globe.

With the above and other objects in view, my invention consists in the arrangement, combination and details of construction disclosed in the drawing and specification, and then more particularly pointed out in the appended claim.

In the drawing,

Figure l is a detail side elevation, partly broken away and in longitudinal section, of a portable light constructed according to an embodiment of this invention,

Figure 2 is a bottom plan View of the light socket support,

Figure 3 is a detail side elevation of the light socket support removed from the frosted globe,

Figure 4 is a side elevation of an adapter extension for use where the socket of the flashlight or lantern is not of the threaded type.

Referring to the drawing, the numeral I designates generally a threaded socket within which a relatively low power or voltage bulb II is mounted. The socket Ill is secured to an elongated tubular supporting member I2 which has secured to the lower or outer end thereof a metal cap I3.

The bulb I I includes a central contact l! which engages a xed central contact i5 disposed at the inner end of the socket Ill, and a conductor It extends through the tube I2 and is insulated therefrom, by an insulating sleeve I'I. The conductor IB is connected at the opposite or outer end thereof to a center contact I8 which is in,-

2 sulatedrfrom the cap Why-insulating means I9, and the center rcontact Hl is adapted to engage a centercontact-ZU carried by a conventional light socket generally-'designated as 2|.

Thelight socketZ-I is-of conventional sfiz'efthat is, `of the size "normally `used for im) V'volt light bulbs and includes a switch 22. In order to provide a means whereby the support l2 with the cap I3 may be electrically connected with the socket 2|, there is provided a threaded metal sleeve 23, which is adapted to be threaded into the socket 2l and is secured to the inner end of the neck 2t of a globular globe 25.

In order to provide a means whereby the supporting tube I2 may be frictionally held within the neck 24, I have provided a resilient insulating bushing or sleeve 26 which tightly engages about the tube l2 adjacent the outer end thereof and bears against the inner side of the metal cap I3. The threaded sleeve 23 which is xed to the inner end of the neck 24 is formed with an internal flange 2l adapted to bear against the resilient bushing 26. When the combined socket and support is mounted within the globe 25, the cap IS is in contact with the inner end of the threaded sleeve 23 thereby completing one side ofthe electric circuit to the socket I0. A 2wire conductor 28 is connected with the socket 2l and has secured thereto a screw plug 29 for engagement in a screw socket of the type which is available in a flashlight or electric lantern, or where a threaded socket is not available in the flashlight or lantern, the plug connection 30 carried by adapter extension 3l may be used. Extension 3l has a threaded socket 32 at the other end to receive threaded plug 29.

In the use of this device where it is desired to provide a light and a suitable source of electric power is not available, a flashlight, electric lantern or the like may be used to illuminate the bulb l I. The light bulb in the flashlight or electric lantern may be removed and the screw plug 29 inserted in the socket of such bulb or where the socket in the ashlight or lantern is of the slip-in type, the plug 3! may be used. The cord or 2wire conductor 28 is of a suitable length so that the light may be positioned at the desired location. The provision of the frosted globe 25 will provide a means whereby the light will be spread in an even manner and will not be of a glaring characteristic. If desired, a suitable wire guard or the like may be positioned about the globe 25. In practice, the globe 25 is constructed in the form of a frosted volt light bulb which has the plug or base end thereof cut oil' and the 3 filament support removed. This extension light will provide a suitable illuminating means in remote locations or in locations Where a normal extension light and cord cannot be used.

I do not mean to conne myself to the exact details of construction herein disclosed, but claim all Variations falling within the purview of the appended claim.

What I claim is- In a device of the character described, a conventional lamp socket having contacts therein, a source of electric current connected to said socket contacts, a bulb structure adapted to be mounted in said socket, said bulb structure comprising a globular member, a threaded metal sleeve on the lower end of said member contacting said socket, a metal cap at the base of said member and contacting said sleeve, a center contact adjacent said cap,rinsulating material between said contact and said cap, a metal tube extending from said cap interiorly of said member, a reduced diameter socket at the end of said tube, a centrer contact in said reduced diameter socket, a conductive member extending through said tube connecting said center contacts, insulating material between 25 said tube andsaid conductive member and said center contacts, a bulb having a metal plug thereon in said reduced diameter socket adapted to close a circuit between said second mentioned center contact and said first mentioned socket, and

an insulating bushing positioned between the lower end of said tube and the interior of said globular member for holding said tube in upright aligned position.

VERNON L. COX.

REFRENCES CITED The following references are of record in the le of this patent:

UNITV ED' STATES PATENTS Number Name Date Y 825,182 Bonnella July 3, 1906 V1,322,968 Smith 1; Nov. 25, 1919 1,560,289 Noll Nov. 3, 1925 2,204,316 Miller et a1 June 11, 1940 2,457,666 Harjes Dec. 28, 1948 2,476,683 Sohr July 19, 1949 FOREIGN PATENTSV Number Country l Date 261,303 Great Britain Nov. 18, 1926

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