US1310150A - woods - Google Patents

Description

H. A. WOODS.

LANIERN.

APPLICAUON FILED IULYS. 19H.

Patented July 15, 19M).

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A. ORMEYS UNITED STATES PATENT OFFICE.

Original application filed November 29, 1915, Serial No. 68,981.

Divided and this application flled July 9,

To all whom itmay concern:

Be it known that I, HOMER A. Wooos, a citizenof the United States, residing at Inclianapolis, in the county of Marion and State of Indiana, have invented a new and useful Lantern, of which the following is a specification.

It is the object of my invention to prov de a portable self-contained electric lantern which permits a relative adjustment between the reflector and the incandescent bulb while at all times holding the bulb firmly; which avoids the possibility of dis placement of the bulb contacts; which clamps the lens and the reflector in place by a single member and permits lenses of different thicknesses, or several lenses at once, to be used without interfering with the clamping of the reflector; which insulates the bulb con tacts and their mounting from the casing of the lantern and avoids all charging of such casing; and which provides a simple and effective arrangement for holding the bulb contacts and reflector housing in proper position relative to the casing, with a mini- .mum number of clamping parts.

This application is a division of my copending application, Serial No. 63,931 filed November 29, 1915, now Patent No. 1,232,642, granted July 10, 1917.

The accompanying drawing illustrates my invention. Figure 1 is a vertical central section through the reflector, the'lens, the lamp bulb, and their mountings, of an electric lantern embodying my invention, being taken on the line 1-1 of Fig. 2; Fig. 2 is a front view of the reflector housing and bulb mounting; and Fig. 3 is a rear view of the bulb mounting, taken from within the lantern casing.

The casing 15 which contains the dry cells of the battery is here shown only in part, as the arrangement and connection of the battory and control switch is no part of the in vention covered in this case.

The lamp 39 and its reflector 45 are mounted on the front of the casing 15. The front of the casing has a suitably located hole 26, with which registers a similar and centrally located hole in a reflector housing 27 which is mounted on the front of the cusmg 15, the two being separated by an insulating' washer 28 and being provided with registering projections and indentations 19 which when the reflector housing and the Specification of Letters Patent.

Patented July 15, 1919.

Patent No. 1,232,642, dated July 10, 1917. 1917. Serial No. 179.317.

casing are clamped together produce a corresponding deformation of the washer 28. ()n the inside oi' thc casing 15 nd behind the reflector housing 27 are two superposed in sulating plates vided with holes which register with the hole 26. The plate 29 has a se'riesof holes 31 which register with the rearward projections 19 on the casing 15, so as to prevent movement of the plate 29 relative to the easing 15 when the parts are clamped together, an insulating bushing extends tl'lrough the hole 26 and the holes which register with it, and within the insulating bushing 32 is a metal sleeve 33 which is provided with a flange 34 at its rear end for fitting in the cup of a cupshapcd connection terminal member 36, through a hole in the bottom of which cup the sleeve projects. The front 'end of the sleeve 33 is riveted outward so that the sleeve 33 serves to clamp together the reflector housing 27, the washer 28, the casing. 15, the insulating plates 29 and 30, and the cup-shaped connection terminal member 30. The interior of the sleeve 33 is threaded to receive the'threaded base 38 of the incandescent bulb 39 which furnishes the illumination, so that by the inter-engagement of the threads one terminal of the bulb is connected to the terminal member 36. The other or central terminal 40 of the bulb projects through and beyond the sleeve 33 into engagement with a spring contact 41., which. together with a connection terminal member 42, is clamped to the rear insulating plate 30 by a single rivet 43. The upper end 44 of the spring contact 41 is bent. over the upper end of the plate 30 so as to prevent turning of the spring contact on the rivet 43 and thus insure that the free end of such 9 contact is always behind the' hole 26. The

spring contact 41. is sufiiciently resilient so as to engage the central terminal 40 for a considerable range of movement of the bulb 39 in the sleeve 33, so as to vary the position of the source of light along the axis of the parabolic reflector 45 which is supported within the reflector housing 27. This adjustability of the bulb permits the point at which the rays oflight are focused to o varied to a considerable cxlcnt. or the rays to be made convergent, divergent, or parallel, as desired.

The reflector 45 and the lens 44' in front of the lamp bulb 39 are clamped in place 29 and 30, which are also pro- 0 by a clamp cap 47, which has a screw-thread engagement 48 with the front portion of the reflector housing 27 and at its forward end has an inturned flange 49 for hearing against the lens 46 near its edge. the lens in turn bearing against an outturned flange 50 on the front edge of the reflector 43. The screw threads 48 have considerable axial extent, so that lenses of various thicknesses, or several lenses at once, may be used without afi'ecting the clampin of the reflector 4.).

Wires lead from the connection terminal members 36 and 42 to the ener 'zing battery and to the control switchin t ie manner set .15 forth in my aforesaid co-pendin application, but as that forms no part c the resent Invention, it is unnecessary to descri )0 it in detail here.

By reason of the two insulating plates 29 and 30 and the location of the head of the rivet 43 between them, and of the washer 28 between the reflector housing 27 and the casing 15, and of the insulating bushing 32, the current-carrying parts of the bulb and its mountin are insulated from the casing 15, and such casing is prevented from be.- coming charged; and yet the parts are firmly held in roper relative position against turning, y the use of only two 30 rivetsthe rivet 43 and the riveting of the sleeve 33.

I claim as my invention: 1. In a lantern, the combination of a casing, a reflector housing, an insulr ling washer between the reflector housing and the casing, and a bulb-receiving sleeve which projects through said washer, housing, .and casing, said housing and easing being provided with registering projections and depressions for preventing relative movement between them around the axis of said sleeve, and said washer being deformed to correspond with said registering projections and depressions.

2. In a lantern, the combination of a ousing, a reflector housing, an insulating washer between the reflector housing and the casing, and a bulb-receiving sleeve which projects through said washer, housing, and casing and clamps them together, said housing and easing being provided with registering projections and depressions for reventin relative movement .between t em aroun the axis of said sleeve.

3. In a lantern, the combination of a casing, a reflector housing, an insulating washer between the reflector housing an the casing, and a bulb-receiving sleeve which projects through said washer, housing, and easing, said housing and casing being provided with registering projections and de pgessions for preventing re ative movement tween them around the axis of said sleeve; 4. In a lantern, the combination-of a reflector housing. a sup )ort therefor, wnd a bulb-receiving sleeve w ich projects through said housing and support and is riveted outward to clamp them together, said housing and support being provided with registering projections and depressions for prcrcnling relative movement between them around the axis of said sleeve.

In a lantern, the combination of a reflector housing, a support therefor, and u bulb-receiving sleeve which projects through said housing and support, said housing and support being provided with registering pro jections and depressions for preventing rcln tive movement between them around the axis of said sleeve.

6. In a lantern, the combination of n .-+np-- 250 port, a projecting incnsing member for surrounding a bulb, and a bulb-receiving sleeve which projects through said support and said member and clamps them together. sand support and said member being provided with registering projections and depressions for preventing relative turning between them.

7. In a lantern, the combination of n cusing, a bulb-receivin sleeve mounted therein and insulated there .rom, a pair of insulating plates clamped to said casing by said sleeve, and a bulb-engaging spring contact riveted by a single rivet to that one of said insulating plates which is farthest from the casing, so that the rivet is separated from the resin by the other insulatingxpiate, the end of said spring contact beingg t over theedge of t e insulating plate" which it is riveted so as'to prevent said spring contact from turning around the axis of the rivet connecting it to said plate.

8. In a lantern, the combination of a casing, a bulb-receivi sleeve mounted therein and insulated there rom, a pair of insulating plates clamped to said casing by said sleeve, and a bulb engaging spring contact riveted to tltat one of said insulating plates which is farthest from the casing, so that the rivet is sepai'ated from the casing by the other insu lati plate.

9. a lantern, the combination of a casing, a bulb-receiving sleeve mounted therein and insulated therefrom, a pair of insulating plates clamped to said casing by said 116 sleeve, a bulb-engaging contact riveted to that one of said insulating lates which is farthest from the casing, so 1; at the rivet is supported from the casing by the other in.- su atin plate, and a terminal member 120 clam by said sleeve between it and the insulating plates.

10. In a lantern, the combinm ion of a casing, an insulating plate within the casing, a bu b-recoiving' sleeve clamp ng said plate to 1 5 said casing and insulated from the latter, said casing and said plate being provided with registering projections and depressions for preventing relative movement between them around the axis of said sleeve, and a 10 is separated from the (using bulb-engaging wettest great/ed from said casing by said plate.

11. In a lantern, the combination of firm ing, a bulb-receiving sleeve mounted thereuand insulated therefrom, a pair of insulating plates clamped to said casing by said sleeve, and a bulb-engaging contact riveted to that/ one of said insulating plates which is farthast from the raging, so that the rivet by the other HOMER A. woons.

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