US1187104A - Electric pocket flash-light. - Google Patents

Description

I vC. 1.:SAGEBRECHT.

ELECTRIC POCKET FLASH LIGHT. APPLICATION FILED JAN. 31, 1916.

. 1,187,104, "PatentedJune 13, 1916.

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CHARLES J. SAG-EBRECHT, F TORONTO, ONTARIO, CANADA, ASSIGNOE T0 INTERSTATE ELECTRIC NOVELTY COMPANY, OF NEW YQRK, N. Y., A CORPORATION OF NEW YORK.

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ELECTRIC POCKET FLASH-LIGHT.

Specification of Letters Patent. Patentqgfl June 13, 1pm,,

Application filed January 31, 1916. Serial No. 75,289.

' following is a full, clear, and exact description.

This invention relates to improvements in electric pocket flashlights, the object being to prevent short circuiting of the battery by connecting the circuit-closer and the metal cap that holds the lens and reflector and lamp carried thereby, that is to say, by connecting the circuit-closer and lamp in case the flashlight is placed upon a metallic substance-whichconnects the said parts. To prevent such short circuiting,-I employ special means to insulate the lamp from the reflector.

I will now proceed to describe my invention in detail, the essential features of Which will be summarized in the appended claims, reference being had to the accompanying drawing,- forming part hereof, wherein:

Figure 1 is a side elevation of'a flashlight,

partly in section, embodying my improvements; Fig. 2 is an enlarged sectional view of the reflector and lamp-socket; Fig. 3 is a top plan view of the casing, the reflector being omitted; Fig. 4: is an enlarged sectional view on line 44, Fig. 3 ofthe conductors which complete the circuit for the lamp; illustrating one way to connect the said conductors; and Fig. 5 is an enlarged sectional view of another form of my invention.

The embodiment of my invention herein illustrated comprises a casing 6 containing a battery 7 to supply current to a lamp 8 carried by a metallic reflector 9, said reflector and lamp being covered by a lens 10. The lens and reflector, and consequently the lamp, are retained in position in the casing by a screw-cap 11 which engages a threaded sleeve 12. The opposite end of the casing carries a similar threaded sleeve'13 engaging a cap 14. The sleeve 13 has in engagement therewith one end of a conducting strip 15, the other end being connected to the frame 16 of a circuit-closer 17. The circuitcloser 17 carries a contact 18 arranged to impinge upon the end 19 of a conducting strip 20. The upper end of the strip 20 engages a bridge-contact 21 which extends across the a slight give. into the bushing 29. y Y

The circuit for the lamp will be comcasing over the battery 7. One end of said bridge-contact is secured to the, casing, while the other end is secured to the strip 20. In

this instance the strip 20 is providedwith clips 22, 22 whichgrip the bridge-contact and securely hold it; butother means may be employed to hold the bridge and conductor together.

The bridge 21 has an enlarged centrally disposed body portion 23 having a central opening 24 through. which the end 25 of the lamp passes to contact with the carbon-pole 26 of the battery 7. The body portion 24 does not touch the lamp or reflector but contacts with the flange 27 of the lamp-socket 28. The lamp-socket 28 is carried by a bushng 29 0f insulating material, which in turn is carried by the reflector 9, the said reflector being provldeol with a socket 30 to receive the bushing 29. To hold the bushing in place and prevent it from moving, I preferably form the socket 30 tapering as shown, the lower or smaller end being slightly flanged inwardly, as at 31, to engage a notch or groove 32 in the bushing 29.

The tapered formation of the socket 30 and bushing 29 prevents the said bushing from moving downwardly, whilethe flange 31, whlch engages the groove32, prevents the said bushing from moving upwardly. The bushing is forced into the socket and while the bushing is being forced in, the flange 31 will spring into the groove 32, as the thin metal will spring enough to permit The lamp-socket 28 is screwed pleted, when the circuit-closer 17 is moved to cause the contact 18 and end 19 of the strip 20 to touch, through the strips 15 and 20 and bridge 21 to the lamp, then through the lamp back to the battery. The bushing 29 insulates the lamp-socket 28; hence the reflector is not a'current carrying element or a part of the circuit, and consequently the only exterior element which is a part of the circuit is'the circuit-closer17.

In the form illustrated in Fig. 5 the reflector 33 is insulated from the lamp-socket 34 by a washer 35 of insulating material. In this form the end of the strip 20 can be extended as at 36 to contact with the lampsocket 34. The lamp-socket 34 is provided with a flared wall 37 to receive the washer 35 and small end of the reflector 33. The

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reflector, Washer and wall 37 can be cemented together or secured by rivets, Which are insulated from the reflector, there being various Ways to accomplish this result. The lamp 8 is of course screwed into the lampsocket 28, the outer shell of the lamp being provided With threads.

Having now described my invention, what I claim and desire to secure by Letters Pat ent is: i

1. The combination of a metallic reflector, a tapering socket carried thereby, an inwardly directed flange carried by said re-' flector at its smaller end, a tapering bushing carried by said socket having a groove to receive said flange, and a lamp-socket carried by said bushing. y

2. The combination of ametallic reflector, a tapering socket carried thereby, an inmemoa wardly directed flange carried by said reflector at its smaller end, a tapering bushing carried by said socket, means carried by said i bushing to engage said flange, and a lampsocket carried by said bushing.

3. The combination of a metallic reflector, a tapering socket carried thereby, a tapering bushing carried by said socket and provided with an annular groove, a lamp socket carried by sald bushing, and means carried by said reflector to engage said groove when said bushing is forced into said socket. Signed at Toronto, Canada, this 26 day of January 1916.

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