US2330851A - Switching case for electric pocket lamps - Google Patents

Description

Oct. 5, 1943. E. VENOT I SWITCHING-CASE FOR ELECTRIC POCKET LAMPS Filed Oct. 8, 1940 5 6 2 \\\\\\\\R.\ I 1. z "u 0 0 r 1 INVENTORL ATTR-wsvs EMILE. VENOT Patented Oct. 5, 1943 swircmnc CASE FOR Epsom-mercenar LAMPS Emile Vcnot, Marseilles, France; vested in the .AlienProperty Custodian Application October 8, 1940, Serial No. 360,215

In France November 24, 1939 1 2 Claims. (01. 24040.65)

Actually and in a general way, it is known of disposing on one side of the case of an electric pocket lamp, a switch which may operate to effect lighting or extinction of the'lamp.

This switch is provided with an indispensable finger piece always jutting out from the case. Now, experience sufficiently proved that this conventional type of switch offers certain in conveniences, the principal of which are, first, a

. certain difliculty of moving the cut-out requiring very often for this operation, owing to a little stiffness in the working of the switch, the use of both hands, one, to hold the case, the other to move the switch; then, the jutting out of the finger piece or button of the switch, is a cause of hooking other objects being in the same pocket of the dress containing the lamp, which also may be the cause of trouble, and finally the adjustment of the contact strip of the battery engaging the interruptor, each time the battery is replaced.

Those risks and principal inconveniences are.

now suppressed by the object of the present invention, consisting essentially of a casing of an electric pocket lamp a part of which is movable with the precise aim of constituting a switch without any control device jutting out, placed in the electric circuit feeding the lamp. 1

This casing is characterised by the fact that the electric lamp is movable and that its bottom constitutes at the sametime, owing to the lamp being movable, a sliding contact on one of the conducting blades of the battery and a,

ciple of the invention itself.

a lamp I is fixed by known means, in preference by screwing, on a support 2.

This support is movable, consequently it may be moved longitudinally and alternately following the direction. of the arrows Aand B, and thatthelowest part...

of the bottom 3 bearing contact element 4 of lampv l is always in contact With'a blade-5, flexible and current conducting, connected withone of the poles of an electric source, 6, while base 3 itself is in contactwith a blade I, likewise a conductor, connected also with the'electricbattery t and forming the other pole.

It is obvious that in this position, the electric circuit is closcd'upon the connections of lamp I and that this latter will light. But if support '2 is pushed in the direction'of arrow A, position shown by a dotted line, itimmediately will result that base 3 leaving its contact with blade I will be cut ofi the electric circuit, and by this I fact lamp 1 will be extinguished.- That is the principle and the working of the switching case,

a practical embodiment of which is shown in Figs. 2, 3, 4. t

In this practical embodiment, casing El and support 2,01? lamp I are more favorably constituted of moulded and insulating materials or of wood. Support 2 slides inside case ,8, position shown in dotted line in Figs. 2 and 4,

guided by slots 9 of convenientshape, more particularly visible in Fig. 3, which permits displacement longitudinally and by sliding of lamp base 3 and its point 4 to contact with blade 5 conductor of battery 6, and to come likewise in contact with blade 1 according to the principle of the invention, already described and shown in lochange the battery 6, when exhausted, and the lens [8 removed from support 2, battery 6 is easily removed and replaced. A reversal of these operations will vof course bring" the switching casing back into operative condi- Fig. 2 is a view from the front, with parts out 01f, in order to make comprehension easier, of a practical embodiment of the switching case.

Fig. 3 is a View from the side, likewise with parts out ofi, of the switching case shown on Fig. 2.

Fig. 4 shows the same switching case seen on plan.

Considering Fig. 1 schematic, it is noticed that tion.

The switching casing contributes a progress in this kind of appliances by avoiding use of the 5 conventional type of switch and of the inconveniences thereof, andproduces likewise a new result in allowing conveniently handled pocket lamps, since lighting and extinction of these lamps may now beperformed in an easy mane ner, with a single hand. However, the shapes,

the sizes of parts and the materials used for the manufacturing of this switching casing may vary without changing the general principles of the herein described invention. I

I What I claim and desire to secure by Letters Patent of the United States is:

1. In a, flash light having a casing for a lamp battery, a slidable cover for one end of said casing made of insulating materialand having a recess with an aperture for receiving an electric lamp, and means for holding said lamp in a position adjacent the end of' said battery to maintain sliding contact between the end of the lamp base and one contact of said battery and allow sliding of the cover along said one end until the ide of said base meets the second con-

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