US1205645A

US1205645A - Electric-battery lamp.

Info

Publication number: US1205645A
Application number: US87582214A
Authority: US
Inventors: James W Lawhead
Original assignee: Individual
Current assignee: Individual
Priority date: 1914-12-07
Filing date: 1914-12-07
Publication date: 1916-11-21
Anticipated expiration: 1933-11-21

Description

J. W. LAWHEAD.

ELECTRIC BATTERY LAMP.

APPLICATION FILED DEC. 7. 1914 1,205,645. Patented Nov. 21, 1916.

.mmns'w. ILAWHEAD, or WILMINGTON, OHIO.

. j ELECTRIC-BATTERY LAMP.

Specification or Letters Patent.

. Patented Nov. 21, 1916.

Application filed December 7', 1914. Serial No. 875,822. I

' To an whom may concern:

Be it known that I, JAMES W LAWHEAD, a citizen of the United States, residing at Wilmington, in the'county of Clinton and State of Ohio, have invented certain new and useful Improvements in Electric-Battery Lamps, of which the following is a specification.

My invention relates to electric battery lamps and is particularly directed to the improvement of hand search lights such as maybe used to considerable advantage by motorists, etc., especially when on the road. Instances arise when it is desirable to place a Searchlight upon the ground or in some other self sustaining position, in such manner that it will cast its rays of light at various angles aside from a normal upward direction.

Therefore, the main object of my invention in the provision of a hand search light of the type referred to wherein a pivotally mounted, reflector is used, this reflector and its-mounting being ofsuch nature that it is capable of assuming a vertical position with respect to the lamp as a whole and also various positions of inclination.

Further objects of my invention reside in the provision of structures for regulating the frictional grip. upon the pivotally mounted reflector to insure a maintenance of any assumed position; a peculiar type of flexible connection between the battery and the electric light bulb contained within the reflector itself; a particularly novel form of switchv connection between the battery and.

its containing structure; and certain details of construction.

The preferred embodiment of my invention is shown in the accompanying sheet of drawings, in which similar characters "of. reference designate corresponding parts and in which:

Figure 1 shows my improved lamp in side elevation, Fig. 2 is a section taken on line 2--2 of Fig. 1, and showing the reflector in certain positions of inclination in As is customary, I have provided a battery 1 which forms the source of energy in producing the light, this battery being shown as being confined within a metallic casing 2. I preferably make this casing of some conducting material, in order that the base of the battery, when the usual cardboard construction surrounding the same is removed,may serve as a terminal connection between this battery and the electric light bulb used. A hood or cover member 3 is designed to close the upper open end of the member 2, it being removably held in this position by means of pins 4 operating within bayonet slots such as shown at 5. The. inner upper portion of this cover sulated from the switch member as a whole. I

von the market. This contact 11 is intended to always engage this binding post when the cover is in the position shown and consequently, it extends to a point directly be neath the pivot point 8, which must natu rally be disposed at a point approximately in the center of the cover member 3 to lie in ,vertical alinement with the binding post 12. i

Disposed to one side of the center of the cover 3 are two upstanding pivot members 13, these members being rigidly carried by the cover itself and being formed as 1s shown at 14, whereby, by the use of the tightening screws 15, the frictional grip upon the base or pivot portion 16 of a re flector 17 may be regulated. It will be noted that the under part of the base or pivot portion of the reflector 17 is cut out as shown at 18, this cut-out portionbeing, to

such an extent that its underside is located above its actual pivot point. This construe tion is resorted to because of the swinging the hood member 3 and is insulated therefrom as shown at 20 and is attached at this point to a contact 21, this latter contact being so located to cooperate with the prong extension 9 of the switch member 7. The opposite end of the flexible connection 19 passes centrally through the base portion 16 of the reflector and is also insulated therefrom as shown at 22 to bear against or carry a ball contact member 23, the latter being designed to cooperate with thecontact usually provided on the stub end of an electric light bulb shown at 24.

From the above description, taken in connection with the accompanying drawings, it will be seen that I have provided a comparatively useful article of manufacture. The reflector 17 is pivoted off center, so that it may assume various positions of inclination and in fact, may assume a slightly greater than horizontal position of inclination because of this off-set location as is. shown in broken lines. Further, the length of this offset is so regulated that when the reflector assumes the position shown in broken lines at the right of Fig. 2, its edge will not project beyond the edge of the casing top so that the article as a Whole may be readily inserted within acircular box for purposes of shipment. Also, it will be noted that I have avoided the use of wires to a great extent, by making the casing itself of conducting material, so that the reflector base forms one terminal to cooperate with the bulb 24, while the other terminal is formed by the coil spring 19, this latter cooperating with the switch member 7. Because of the cut away nature of the base portion 16 of this reflector, the flexible connection 19 is extended in length and its are of movement is also less acute, so that its likelihood of breaking is reduced to a minimum.

What I claim, is:

1. A hand battery lamp comprising a cas ing, a battery within said casing, a cover for said casing, a resilient contact member arranged to engage with one of the contacts of said battery and carried by said cover, a switch member forming a portion of said contact member, a reflector pivoted to said cover, and an electric light bulb in said re flector electrically connected with said battery.

2. A hand battery lamp comprising a casing, a cover for said casing, a battery within said casing, upstanding pivot members on said cover, a reflector pivoted between said members, means for adjusting the frictional grip of said members on said reflector, an electric light bulb carried by said reflector, and a flexible connection between,said battery and said bulb, the-base portion of said reflector being formed so that said connection enters it centrally at a point above its pivot center.

3. A hand battery lamp comprising 8. casing, a cover for said casing, a battery within said casing, upstanding pivot members on said cover, a reflector pivoted between said members, means independent of the pivotconnection for adjusting the frictional grip of said members on said reflector, and an electric light bulb carried by said reflector.

4. A hand battery lamp comprising a casing, a cover for said casing, a battery within said casing, a reflector, pivotin means carried by said reflector beneath its base portion, an electric light bulb carried by said reflector, and a flexible connection between said battery and said bulb, the base portion of said reflector being formed so that said connection enters it centrally at a point above its pivot center.

In testimony whereof I aflix my signature in presence of two witnesses.

JAMES W. LAWHEAD.