US1111956A

US1111956A - Electric lamp.

Info

Publication number: US1111956A
Application number: US83870814A
Authority: US
Inventors: Theodore P Driver
Original assignee: Individual
Current assignee: Individual
Priority date: 1914-05-15
Filing date: 1914-05-15
Publication date: 1914-09-29
Anticipated expiration: 1931-09-29

Description

T. P. DRIVER.

ELECTRIC LAMP.

APPLICATION FILED MAY 15, 1914,

1, 1 1 1 ,956. Patented Se t. 29, 1914.

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THEODORE I. DRIVER, 9F MELROSE, MASSACHUSETTQ ELECTRIC .ZAlvIl.

Specification of Letters Patent.

Patented Sept. 29, 1914..

Application filed May 15, 1314. Serial No. 338,708.

To (ZZZ whom it may concern:

Be it known that I, THEODORE P. DRIVER a citizen of the United States, residing at Melrose, in the county of Middlesex and State of Massachusetts, have invented new and useful Improvements in Electric Lamps, of which the following is a specification.

My invention relates to portable electric lights, and its object is to provide a lamp which is inexpensive and simple to construct, and which may be quickly and easily attached to the ordinary commercial type of dry cell battery in common use, thus dispensing with the necessity of carrying bulky batteries when traveling, and yet enabling the traveler to have available at practically all times a powerful electric light of long duration, as batteries of the type to which my device is adapted are readily obtainable everywhere.

My device consists of a main supporting member of conducting material, with an insulated portion which serves as a handle, bent into an inverted U, the extremities of which are provided with flanges and apertures therein to engage the binding posts of a dry cell battery, thus securing the'lamp to the battery and enabling the whole to be carried by the handle, and a metallic reflector secured to the main supporting member and in electrical contact therewith containing a small incandescent lamp through which the flow of current from the battery is effected by a thumb screw on the main supporting member adapted to make and break contact with the base of the lamp.

The well known type of pocket flash light in which an incandescent lamp and battery are contained in a single casing is wholly inadequate to perform the functions of my device, as the small size battery necessarily employed has not the strength to furnish a continuousli ht of high power for any considerable period of time. 1 have been able employing my device with an ordinary size dry cell battery to provide a light of sufii-.

cient candle power for forty hours without interruption, to enable a person to read fine print in a newspaper at a distance of one hundred feet.

One of the principal advantages of my device resides in its specific construction, to be hereinafter described, as it is so simple that it can be manufactured at extremely low cost and occupies much lessspace when detached from a battery than the pocket flash lights referred to above.

My device will be found particularly use ful in the camp and wherever a lantern is serviceable as it may be carried about easily by the handle set on the'battery base on table or shelf, or suspended from Wall or ceiling as convenience may require.

The accompanying drawing shows a side elevational view of my device attached to a battery, parts being in section.

In the accompanying drawing, 1 is the combined handle, supporting member for the various parts, and current conductor. In the preferred form it comprises three sections, the two

end sections

2 and 3 being composed of electric current conducting material, and the middle section a of insulating fiber or other preferred nonconductor to break the circuit through this portion of the handle and prevent shock to the person carrying the lamp.

5 and 6 are rivets by which the section 4 is secured'to the

end sections

2 and 7 and 8 are respectively flanges at the extremities of the end sections" "52 and 3 provided with apertures 9 and 10 adapted to engage the battery terminal binding posts 11 15 is an incandescent lamp contained in the reflector 14: having one filament terminal electrically connected with the reflector. The other filament terminal is electrically connected with the base 16.

17 is a thumb screw of conducting material in engagement with the screw threaded aperture 18 in the section 2 provided with an enlarged end portion 19 adapted to make and break contact withhthe base 16... When the thumb screw 17 is turned up against the base 16 the circuit through the battery 13, section 3, refle or 14:, lamp 15, thumb screw 17 and section 2 closed and the lamp burns. When the contact between the screw-end l9 and the base 16 is broken the circuit and lamp'are dead.

hat I claim and desire to secure byLettcrs- Patent is:

1. An electric lantern adapted to be atconnecting sections, each of the end sections being composed of current conducting.

it a battery terminal, a reflector carried on said supporting member, an electric lamp contained in said reflector, one filament terminal of which lamp is connected'with one of said end sections and a contact device. on the other of said end sections adapted to ma and break contact with the other filament terminal of the lamp.

:2. An electric lantern adapted to be attached to a dry cell battery comprising in combination a supporting member formed or three connecting sections, each of the end sections being composed of current conducting material and the middle section of insulating material,. and each of said end sections being adapted to n nge at its free extremity a battery terminal, a reflector of conducting material containing an electric lamp supported on one of said end sections and in electric contact therewith and with one filament terininal of the lamp, and a thumb screw in engagement with a screw threaded aperture in the other of said end sections and adapted to make and break contact with the other filament terminal of the lamp.

3. An electric lantern adapted to be attached to a dry battery comprising in combination a supporting member vformed of three connecting sections, each of the end sections being composed of current conducting material and the middle section ofinsulat-ing material, and each of said end sections being adapted to engage at its free extremity a battery terminal, a reflector of conducting material carried onone of said end sections and electrically connected therewith, an incandescent lamp supported in said reflector and positioned to effect contact between said reflector and one filament terminal of the lamp and a contact device supported on the other of said end sections and electrically connected therewith adapt-. ed to make andbreak contact with the other filament terminal of the lamp. ii) In testimony whereof I have hereunto set my hand in presence of two subscribing witmesses, this thirteenth day of May 1914.

THEODORE P. DRIVER.

Witnesses CARROLL L. PERKINS, Ii. M SULLIVAN.

Copies of thin patent may be obtained for five cents each, by addressing the f Commissioner of Patents, Washington, I). G."