US1318400A

US1318400A - Portable electric light

Info

Publication number: US1318400A
Authority: US
Publication date: 1919-10-14
Anticipated expiration: 1936-10-14

Description

H. (A MARTIN.

PORTABLE ELECTRIC LIGHT. APPLICATION FILED FEB.2.1918.

'Patented ot.14,1919.

HORACE G. MARTIN, OF RUTI-IERFORD, NEW JERSEY.

' PORTABLE ELECTRIC LIGHT.

Application filed February 2, 1918. f Serial No. 215,056.

To all 'whom it may concern.'

Be it known that I, HORACE G. MARTIN, a citizen of the United States, residing at Rutherford, in the county of Bergen, State of New Jersey, have invented a new and useful.- Improvement in Portable Electric Lights, of which the following is a specication.

My invention relates to improvements in portable electric lights. Referring to the drawings, Figure 1 is a front elevation of an apparatus embodying my invention; Fig. 2 is a side elevation of the same, looking toward the left in Fig. l; Fig. 3 is a sectional view somewhat enlarged of the upper portion of the apparatus of Fig. 2.

In the drawings, 1 is a dry battery

cell having poles

2 and 3. A main connector piece, 4, whichmay serve both as a conductor andas a handle or support 4a for carrying the apparatus, is secured to pole 2 by a nut 5, and another connector or conductor, 6, is secured to pole 3 by a nut 7. An electric lamp 8, with a suitable bulb 8a and reflector 9, is secured to aI metal piece or holder 10, so arranged that itserves as a spring to hold the lamp in electrical contact with main connector 4 at the point 8b, Fig. 3. A switch 11 is fastened to the metal piece or lamp holder 10 by suitable means, such as a rivet 12. The

parts

4, 6 and 10 are secured together by two

bolts

13 and 14, but so as to be insulated from one another. As shown particularly in Fig. 3, insulated

pieces

15 and 16 are placed between the

metal parts

4, 6 and 4, 10, respectively, with cylinders of insulation through which

bolts

13 and 14 are inserted, with the result that

metal pieces

4, 6 and 10 are held firmly together but insulated from one another.

Switch 11 is in electrical contact with lamp holder 10 and thence through lamp 8, point 8b and main connector 4 with pole 2 of cell 1. Bolt 13 is in electrical contact with piece 6 and pole 3 of cell 1. When, therefore, switch 11, which is in position to be readily moved between the thumb and finger of the hand holding connector 4 at its horizontal portion 4a, Fig. 2, is moved into contact with bolt 13, Fig. 3, a circuit is established, otherwise the circuit is open.

The operation of the device is very simple. In Figs. l and 2 switch 11 is open. the circuit is broken and no light issues from the apparatus. When switch 11 is turned so as to bear against bolt 13, as shown in Fig. 3, the circuit through the dry cell 1 and the lamp 8 is closed and the current flows from pole 2 of cell 1 through parts 4, 8b, lamp 8, holder piece 10, rivet 12, switch 11, bolt 13 and the connector 6 to pole 3 of the dry cell. By moving switch 11 to close and open the circuit the lamp 8 may be illuminated or darkened at pleasure. It will be seen that the connections may be made directly to the poles of the battery without any intermediate wiring, thus simplifying and cheapening construction, increasing eiliciency, etc.

I claim:

1. In an electric light, the combination of a battery cell, two metal connector pieces secured one to each pole of said cell, a holder piece for an electric lamp, insulation pieces for keeping said connector and holder pieces out of electric contact with one another. means for securing said connector and holder and said insulation pieces together, an electric lamp secured to said holder piece and having its two elements in electric contact Vwith said holder piece and one of said connector pieces, respectively, and a switch secured to said holder piece and arranged to be moved to make and break electric contact with the other of said connector pieces.

2. In an electric light, the combination of a battery cell, two metal connectors secured one to each pole of said cell, aI holder piece of spring material for an electric lamp, insulation pieces for keeping said connector and'holder pieces out of electric contact with one another, means for securing said connector and holder pieces and said insulation pieces together, an electric lamp secured to said holder piece with one of its elements in contact therewith and having its other element held in contact with one of said connector pieces by the tension of said holder piece, a switch secured to said holder piece and arranged to be moved to make` and break electrical contact with the other ot" said connector pieces.

3. In an electric light, the combination of a battery cell, a connector piece having one of its ends secured to one pole of said cell and its other end free and shaped into a handle for carrying said apparatus, a second connector piece connected to the other pole of said cell. a holder piece for an electric lamp, insulation pieces for keeping said connector and holder pieces out of electrical Contact With one another, means for securlng sald connector and holder p1eces and ing its elements in Contact with said holder lpiece andone of said connector pieces, re-

spectively, and a switch connected to said holder piece and adapted t0 loe alternately moved by the thumb and forefnger of the hand While holding said handle to open 10 and close electrical contact between said Y holder piece and the othel1 of Said connector pieces.

v Copies of this patentidnay A'ne Vobtained forV v'e cents each, by addressing 'che Commissioner ofPatents,

Washingtoml. C. s

HORACE GJMARTIN. Y