US2164106A - Test light - Google Patents

Description

June 27, 1939. w 0 CQQKSEY 2,164,106

TEST LIGHT Filed Sept. 22, 1957 2 Sheets-Sheet 1 Inventor .4fiorneus 0. COOKSEY TEST LIGHT 2 Sheets-Sheet 2 Filed Sept. 22, 1937 WW x Invenior Patented June 27, 1939 UNITED STATES PATENT OFFICE TEST LIGHT Application September 22, 1937, Serial No. 165,216

1 Glaim.

This invention appertains to new and useful improvements. in testing and more particularly to a tester which also incorporates a flash light construction.

The principal object of the present invention is to provide a combination flash light and tester which can be conveniently used either as a light projector or a means of testing fuses and other electrical devices of electrical circuit.

These and various other important objects and advantages of the invention will become apparent to the reader of the following specification:

In the drawings:

Figure 1 represents a side elevational view of the combination device.

Figure 2 is a fragmentary top plan view thereof.

Figure 3 is a longitudinal sectional view taken approximately on line 3--3 of Figure 2.

Figure 4 is an enlarged fragmentary sectional view through the testing feature of the assembly.

Figure 5 is a perspective view of the contact spring.

Referring to the drawings wherein like numerals designate like parts, it can be seen that numeral 5 represents the case of the flash light construction which is threaded at one end to accommodate the cap 6 between which and the battery cell 1 is the conductor spring 8. There is a second cell, and more if desired, and this cell is adapted to be engaged by the contact element 9 of the threaded lamp base which also has the threaded jacket H] which is normally threaded to the threaded socket l I and which socket in turn is threadedly disposed into the partition l2 of insulation. The inside of the case 5 is provided with a lining l3 of insulation. The last mentioned end of the case 5 is provided with threads for engagement into the threaded portion M of the flared head portion 15 in which is located the reflector [6 having the centrally located opening 11 through which the bulb Hi can readily project. Numeral l9 represents the switch which serves to electrically connect the socket II with the case 5, when the button of the switch is pressed inwardly so as to complete the circuit to the lamp bulb H3.

The reflector I6 is flanged at its outer end as at 20 for interposition between the inturned end portion 2| of the head l5 and the glass 22, said glass 22 being interposed between the inturned flange 23 of the rim 24 and the out-turned flange 20 of the reflector IS.

The testing feature generally referred to by numeral 24 consists of a body 25 of insulation having an outstanding semi-circular shaped wall 26 at its outer end and a reduced extension 21 at its inner end for disposition snugly into an opening of the head structure l5. The reduced portion 21 also extends through an opening of the insulating plate 28 and abuts the plate 29 of insulation at the inside of the head l5.

A bolt 36 having the head 3| is disposed longitudinally through the body 25 and through the plate 29 and is threadedly disposed into one end of the elongated spring 32 which bears against the threaded socket ll of the bulb 18.

It can now be seen that the structure can be used as a flash light, by shifting the switch IS in the usual manner. However, when the device is to be used as a tester, the switch [9 need not be considered. Mere contacting of the bolt head 3| with the part to be tested will allow current from the battery cells 18 to pass through the spring 32 and bolt 30 to the electric circuit being tested and ground, if the circuit is not disrupted.

While the foregoing specification sets forth the invention in specific terms, it is to be understood that numerous changes in the shape, size and material may be resorted to without departing from the spirit and scope of the invention as claimed hereinafter.

Having described the invention what is claimed as new is:

A testing attachment for a flash light which includes a casing and a lamp bulb socket, comprising a member of non-conducting material having a reduced end fitting in an opening in the casing and having a socket in its other end, the rear portion of the wall of the socket having an opening therein, a screw passing through the member, a piece of non-conducting material covering the inner face of said portion of the casing having the opening therein and through which the screw passes, and an elongated spring member seated on the inner face of the piece of nonconducting material and having a threaded hole therein receiving the threaded inner end of the screw, said spring member contacting the lamp bulb socket and the head of the screw being located in the socket at the outer end of the member of non-conducting material the walls of the socket surrounding the said head of the screw and projecting well beyond the head excepting at the opening in the socket.

OTHA COOKSEY

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