US2327696A - Safety lamp - Google Patents

Description

Aug. 24, 1943. G. N. BISHOP SAFETY LAMP Filed March 6, 1942 IN VE/YTo/l Gannon NORMAN Bis/10F.

Patented Aug. 24, 1943 WEED STATES PATENT orries SAFETY LAMP I Gordon Norman Bishop, Vancouver, British 1 Columbia, Canada 7 Application March 6, 1942, Serial No. 433,614

2 Claims.

My invention relates to improvements in safety lamps which are particularly adapted for use by seamen and others who become shipwrecked.

The objects of the invention areto provide a lamp adapted for attachment to a life belt or other life saving equipment which is normally sealed against being used; to provide a convenient means whereby the lamp may be tested at any time to determine if the battery is in good condition; to provide a lamp in which th battery and battery container are proof against the ingress of water or moisture, and also to provide means whereby the lamp may be immedi ately put to use when required without having recourse to the use of tools or other devices.

The invention contemplates a watertight battery casing and battery, a lamp and jack connected in series with the battery and a removable cover for thelamp and jack, said cover being apertured to permit the lamp circuit being closed to check the condition of the battery, as will be more fully described in the following specification and shown in the accompanying drawing, in which:

Fig. l is an elevational view of the lamp in sealed condition.

Fig. 2 is a vertical sectional view of the invention taken on the line 2-2 of Figure 3.

Fig. 3 is a plan view looking down on the lamp cover.

Fig. 4 is a view looking down on the lamp casing, showing the battery circuit closed.

In the drawing like characters of reference indicate corresponding parts in each flame.

The numeral I indicates a metallic casing having a cylindrical wall 2, a top closure 3, an inturned annular flange i at the base of the cylindrical wall and a removable bottom closure 5.

The top closure 3 is apertured to receive a rubber grommet l in which a lamp socket 8 is held and a second rubber grommet 9 through which a flexible connector wire I0 passes. The connector wire I0 is fitted at its free end. with a plug H and is secured at theother end to the lamp socket 8. A lamp bulb I3 is fitted within the socket and is connected. by a wire It to an interior part of the casing I preferably by soldering. An insulated jack l5 extends through the top closure 3 and has connected to its base I direct contact with the casing l and also permit the ready removal of the spring when necessary to replace the battery.

Fitted to the casing is a safety pin 20 for the purpose of securing the lamp to a life belt, gar-. ment or other equipment.

When the lamp and circuit parts'of the de-' vice are assembled the casing is inverted and suitable insulating compound 2| is poured in to embed all the parts extending into the casing except the free end of the'contact 16; thus making the casing waterand moisture-proof from the top. 1

When the battery i8 has been put in the casing and the conical spring 19 has been placed in position upon the inturned flange 4, the bottom closure 5 is put onto the casing and a strip of adhesive tape 23, see Figure 1, is wrapped around the periphery of the bottom closure and casing to seal the joint against water or moisture and as a further protection the lower end of the device is dipped into a suitable waterproofing compound, thus completely proofing the casing and its contents.

On the top of the casing a cover 25 of wood or plastic is placed, which is held in position by a length of adhesive tape 26 wound around the cover and the upper periphery of the casing. This cover is provided with apertures 21 and 28. The aperture 21 is small and through it the plug ll of the flexible connector is thrust from the inside, as shown in Figure 2. The connector obviously requires to be bent around to facilitate the fitting of the cover and the bending supports the plug with its free end resiliently projecting through the aperture 2'! as shown. The aperture 28 is disposed directly above the jack 15 so that by inserting a bent wire as indicated at 3i] in Figur 2, through the aperture 28 into the jack and swinging the free end of said wire into contact with the plug H the circuit can be closed and the condition of the battery be determined by the illumination or otherwise of the lamp I3.

A person having one of the devices attached to his clothing or life belt when in the water, say, at night, would be able by unwrapping the adhesive tape 2-6 or forcibly wrenchingoff the cover 25 from the casing I and inserting the plug-l! into the jack 15 cause the lamp Hi to glow and indicate his position to any adjacent rescue vessel.

What I claim as my invention is:

1. In a lamp having a casing, a battery and a normally open circuit including a light bulb, a

minal on one end of the casing and a. flexible connector adapted to be connected together to close the circuit. anopaque cover for the casing enclosing the bulb; the terminal and a portion of the flexible connector, said cover having two I apertures one of which is adapted for alignment With the terminal and the other being adapted to support the outer end of the flexible connector in exposed position.

GORDON NORMAN BISHOP.

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