US854554A - Electric-light fixture. - Google Patents

Description

PATENTED MAY 21 J. F. BARRETT. ELECTRIC LIGHT FIXTURE.

APPLIOTION FILED IAB. 16, 1906.

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JOHN F.A BARRETT, OF CHICAGO, ILLINOIS. I

ELECTRIC-LIGHT FIXTURE.'

Specification of Letters Patent.

Patented May 21, 1907.

Applitiou iled March 16,1906. Serial No. 806.464.

To all whom t may concern:

Be it known that I, JOHN F. BARRETT, temporarily in New Orleans, a citizen of the United States, residing at Chicago, in the county of Cook and State of Illinois, have invented certain new and useful Im rovements to fixtures that are adapted to allow the light' to be moved from place to place and retracted at will.

'lhe invention comprises thev production of means for winding a cable of electric wire thereon, an electric light attached thereto and means connecting said cable to any suitable source of electric energy.

It further consists in the production of an electric light fixture that may be removed at will but still capable of permitting the li ht to be moved from place to place as may e desired.

The object in view is the production of means for permitting electrielight to belowered and raised as may be desired and supported in either its lowered or raised position.

Another object is the production of an electric light lixture ada ted to be adjustably connected to any suitab e source of electrical energy and provided with a suitable path for the flow of current to the lamp supported by the said iixture.

With these and other objects in view, the

invention comprises certain novel constructions, combinatiens and arrangements of parts as will be hereinafter fully described and claimed.

In the accompanying drawings :-Figure 1 is a perspective view of one embodiment of the present invention, certain parts being broken away. Fi 2 is a vertlcal section through Fig. 1. Fig. 3 is an end view of the ratchet mechanism.

In the preferred embodiment of my invention, I provide a suitable casing as 1, made from insulating material 2 and referably covered with a metal casing as 3. Within this casing is mounted a drum 4 of peculiar construction and specially adapted to`accomplish the results desired to be attained in this lnvention. This drum is formed in the sha e of a spool having large flaring ends as 5 an 6 body 7 of the drum 4. The drum is provided with a large central chamber 23 having a screw threaded portion 24 at its open end. Passing through the center of the drum 4 is a shaft Ssquared part of its length, upon which is mounted a s ring 9. This spring 9 is secured in any suitable Way to the squared porvtionuoi the shaft 8 and is also secured in any suitabfe manner to the body portion 7 ofthe drum 4, so when the drum is revolved it will bring the spring under tension. The cap 25 screws into the opening. in the chamber v33 and is so positioned that a recessed portion 10is formed in the end 5 of the spool 4, fortheaccommodation of a ratchet- 11, which isengaged by any suitable number of pawls 12.

The awls 12 are mounted upon the cap 25,

fwhile t e ratchet'll is4 mounted on the squared portion of the shaft 8 so that when the drum is revolved in one direction, the

spring 9 is brought under tension and retained in such condition by means of the pawls 12..engaging the ratchet wheel11. The ratchetwheel 11 as is shown in Fig. 2is rigidly secured to the shaft 8 and the shaft 8 has its squared end iitted into a squared aperture in the casing 2. When it is desired to revolve the drum so as to unwind the spring, it is iirst revolved in a direction to bring the spring under tension until the pawls 12 have become disengaged from their ratchet wheel 11, and then the drum is allowed to revolve freely under the impulse of the spring 9.v

Located in the flanged end 6 are two conducting rings 13 and 14 which form an im. portant feature in my invention. These rings are preferably embedded within the end -so as to come iiush with the surface thereof. Upon the drum is wound a suitable cable 22 containing electric wires which have their ends secured to projections 15 and 16 respectively. These projections are formed integral with or rigidly secured to the rings 13 and 14.

Secured to the casi 1 in any suitable wav, is a screw threade nipple 17 adapted to be lifted into any suitable socket. Wires from any suitable source of electric generation are conducted through the nipple 17 and connected to springs 18 and 19 which carry suitable contact brushes 20 and 21. These contact brushes engage the rings 13 and 14 so as to complete the circuit for a current of electricity. A current of electricity,

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coming from any suitable source passes through spring 18, brush 21, ring 13, fprojec-' sionspringg. 'When Ethe drum 4 stops revolving, 'the pawls v12 will -drop -into their 4places in'the ratchet wheel 111 and thus-sustain the light in its adjusted'posi'tion. When it is desired to move the light'nearerfthe fixture, it -is 'only necessary to =pull upon the cable 22 1until the'drum 4 Iis revolyedzsuifliciently to-'disen'gage the pawls1-2 from the 'ratchet wheel 11 and lthen='al1ow thespring -9 to rewind the cable u on the' drum until the light has-'been place in 'the position 'desired.

jHaving 'now' described 'myfinvention, 'what I claim as new and desire-to secure by-Letters 'Patent is fIn an Aelectric lamp fixture fthe combination with a @yhndricai Casing 'provided with a slot and socket portion, a stationary'shaft passed through said drum, substantially as mounted in said casing, a c lindrical drum 3 having extended ends revolu ly mounted on said shaft, a spring inside of said drum and attached to said drum, and to said shaft, a screw threaded opening in one end of said drum leading into the large central chamber in said drum, a ca screwing into said opening to a depth su cient to form a rccess in the o en end of said drum, a ratchet mechanism ocated within said recess and mounted on said cap and said shaft, flexible electrical connections wound upon said drum, one end ofsaid connections being attached to lugs extending inwardl through ythe -flangediends of said drum, a lh .ported by theother end of said connections 'whidhl connections pass out through the slot -in 'said casing, `and spring pressed brushes 'bearing against'one'endof said drum wheremp supby an electric current -may lbe vconstantly 5c described.

In testimony whereof I aiiix my signature `in presencel of twowitnesses.

I JOHN F. BARRETT.

`Witnessesz l WILLIAM VoEGLE, 'BERTRaND CAHN.

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