US960076A - Adjustable electric-lamp support. - Google Patents

Description

l J. ia. 00B. ADJUSTABLE ELECTRIC LAMP SUPPORT.

'APPLIUATIONAFILED NOV. 26, 1909.

)Patented May'31, 19v10.

dem MZHH. v.

UNITED srArns rgnnr orrIoF..

JOHN B. COEL'OF BOSTON, MASSACHUSETTS, ASSIGNOR OF ONE-FOURTH 'IO JOHN E. HILTON, OF BOSTON, MASSACHUSETTS.

ADJUSTABLE ELECTRC-LAMP SUPPORT:

Specification of Letters Patent.

Patented-'May 31, 1910.

Application mee November 26, 1909. serial No. 529,899.

To all whom it may concern:

Be it known that l, Jon'N li. Con, of Bos ton, in the county of Suffolk and State-ot Massachusetts, have invented certain new and useful Improvements in Adjustable Electric-Lann) Supports, of which the tot lowing is a specification.

This invention relates to a support or i holder for an electric lamp adapted to he -ing parts continued therein.

for the purpose.

- latter being shown 1n scction.

suspended from a wall bracket or any other outlet connection, and adjustable to hold the lamp at any desired height.

The entire device consists of a 'casing to which is rigid'lyattached n lamp socket, which Casing conta-ins a reci upon which an electric conductor may be woundnnd elec.- trical Contact members and connections for conducting' current from* the conductor of said rcel to the .terminals of the lalnp socket.

The. flexible conductor mounted upon thc.'

reel has Aon its end a plug` which may be inserted into -anysocket such as is provided on e Wall bracket. for. a lamp or a ceiling socket 01' any other outlet c oi'niection with the wiring system of the building.

In vthe accompanying` drawings l have illustrated thc prefcrrcl manner in which my invention isI carried int-o effect.

In'these drawings-"Figurc 1 is an elevation showing the cutire. apparatus connected with a wall bracket. Fig. 2 is a section of the casing showing` the manner ot' attaching thel salncto the lamp socket and the operat- Fig. 3 is a vic-w V'showing in elevation thc ntcrior mechanism of the easing, the lat-tor beiner broken awa)7 Fig. 4 is a' plan view ot themechanism contained in tho casing. the

The same reference charnctcrs iudica'tc the .same parte .in all thc figures.'

Referrinn'lo ih'c. drawings. 1 represents a bracket such is commonly used in buildings-tura Wall lmnp` snclr bracket cnrr \'ing aj socket 9.. This braclict and socltct arc shown ns beiner ln'crcly typical -or illust rativc.

i of-anysocltcft mounted in any nmnucr which 'may bc found in a buildingl cquippcd with electric. lights and do not thcn'lsclv-cs form part of. my' invention. 'lhcy are illustrated 'simply 'as showinglhe manncrni which the invent'l- -applief l. 4 The invent-Jon resides socket-2.' These parte4 consist. o t a plug all positions oi the l i jfornindiinethe wreejcstli in thc parts-whicl-r 'thus raising Ve a 'are shown in Fig. =1 as depending fronrt'he adapted to be detachably connected in the socket 2, a iexible conductor 4, a easing 5, e lamp socket 6, rigidly 'secured to the-bottom of said casing and a lamp 7. The casing 5 is a. shellpreferably cylindrical in torni, which is detachably secured to a base 8, to the latter of which is rigidly attached the socket 6. Mounted upon the base 8 are standards 9 and 10 which support the ends ofthe shaft 11, upon which is mounted a. roel 12. The flexible conductor is Wound up on this reel and passes through an opening 13 in the cover or top 14 of the casing 5. The conductors for the Ordinary electric incandescent .lamp consistof .two Wires and such a conductor is here shown. The 'terminals of these t-Wo wires are connected respectively at the points 15 and lo to ilanges 17 and 18 on the ends of thereel 9. These {ianges are ot conducting material and. are insulated froin the supports..l Preferably the reel 1Q is of wood or other non-condue't ing material and the conducting flanges are mounted thereon arid insulated thereby from the shaft. 11. lnsulat'ing Washers 1.9 and 20 are also preferably interposed be'- tween the flanges and the metallic parts ne'Xt adjacent. there-to. the conductor 4 are insulated from everythiner excegpt the connections with the lamp socket. 6. presently to be described.

The ,terminals o'r conducting vWires 2,1', A2.2,

S. and are connected respectively to contact sp1-ings or : brushes 9,4, 25`in the interior 'of thc. casi-ng. rThese-brushes are attached'to insulating blocks 26, -27 respectively, which are suitably secured to the base 8' as by being mounted upon the footf'portion 28 ofthe . standards 9, 10. Itay be observed that Thereby the terminals of ot the lamp socket 8 pass through 'an in I sulating nipple 23 which is set into thebase in the' form of the invention heregshoivn g these standards are formed in one piece Witl an intermediate foot or yoke, which latter.

centrally perforated .to receive the-nipple of the socket and the slee-,ve 28, and is fastenedsecurely by solder or other meins to the bot,- ioin S of the easing. Thus electrical conne tion between the conductor 4 and the ter1ninnls .of the lamp' socket is maintained in.

mi), Tprovide 'a jfik' havin-g' u detachable connection With the shaft 11 as4 being screwed thereon 'in .the

manner shown in Fig. 2. Rotation of the handle, as will readily be understood, winds up the wire 4 and thus raises the lamp. The reel is .prevented from turning and the lamp thus maintained at any desredheight by means 'of a lock 30. This lock consists of a pawl pivoted at 31 to the' standard 9 and engaging the teeth. of a gear 'or ratchet 32. 'The pawl is urged by a spring 3 3 intoy enga v ei'zfient withsaid teeth and carries a handle or lknob llprojectin outside ofthe bracket by which it may be theiteetli when thelamp is to be lowered or terminals from the flan es 1 7 and 18. `flanges, it may also raised. I

It may be noted that at the polntswhere' depart1ng"'fro1n' the spirit of my invention or changing the scope thereof. For instance a spring 'may beemployed. in 4any well-` known manner to wind up the reel in placel of the crank 29 ythe reelor spool l2 may be made of metal in electrical connection 'with 4the disks 17 and 18, provided it is suitably insulated from 'its supporting brackets ,9, 10

and from the shaft 11; and-other readily apparent changes may equally well be made.

claim,-

f1. Ans adjustable electric lamp, comprising a socket, a reel holder rigidly united to sa1d.' socket,a reel 4rotatably supported by said holder, a .flexible electrical conductor -upon saidfreel, manual means for rotating said reel to wind lsaid 4conductor more or less. thereon to adjust the height of the lamp, and electrical connections between said conductorand the terminals of said socket arranged to main-tain electrical 4connection while p'ermitting rotation of the reel.

2. -An adjustable electric light ,holder comprising a casing,"a lamp socket. rigidly' connectedA to said casing,v 'a reel journaled Alwithinsaid casing, aA suspension cord, iricludingan electrical' conductor passing into said casing and attachedto said reel, means and thereby adjust the height of said holder, -a toothed wheel secured to said reel, a lock arranged-to engage any of the teeth ofsaid "wheel forsecuring said reel in any-position and'hav'ing av portion extending outside of the casing QIT "'Inani'pulatiornI and Contact 'brushes 4for. transmittin current from the conductor ,tothe terminaV s of the socket.` g

.ifi djustable. electric 'light holder,y

"a 'casinghaving al removable 'sengaged frorn forrotating the reel .to wind up Isaid .cord

base, a' lamp socket rigidly secured to said base, standards also rigidly secured to said base, a reel-ofUnon-conducting material rotallic fianges` or' disks upon said reel, con* tact brushes bearing against said disks and having electrical connection with the terminals o said socket,` and an electric l'i ht cord passin into said casin adapte to be woun upon saidhol er between said flanges secured thereto in 4electrical c`onnec tion therewith.

4. -An adjustable electric light holder comprising a .lamp socket, supports rigidly connected to said socket, a reel rotatlvely.

held by" said supports, metallic iianges or disks attached to said reel at a distance from one another, blocksv of insulating material secured to said supports, contact springs or ahrushes mounted upon said blocks and bearing against said flanges, connections leading from the terminals of said lamp socket to said brushes, and an electric light oord .mounted upon saidreel and having its. terminals in electrical connection with the ref spective flan es.

5. In an a justable electric light holder, a lamp socket, a reel rotatively mounted upon standards rigidly connected to said. socket, an electric light cord adapted to be wound uponsaid reel and metallicflanges on said reel en each side of said cord to which Athe terminals o f the latter are respectively connected, said flan es serving both as retainers for the Woun -up cord and as conductors for transmitting electric current to the lamp socket.

6. An adjustable electric light' holder consisting Vof al casing having a detachable bottom or base',A a lamp socket securedto said base, standards secured .to'said base,V areel rotatively mounted 'u pon said standards, an -operating crank detachably connected .with said reel and extendingthrou h'rthe side ofsaidcasing when so connecte a toothed Wheel secured to said reel or its shaft, a bracket member 4yieldi-ngly. engaged. with said wheel, a handle for disf'engagingsaid bracket. from" saidvwheel detachably connected therewith andprojecting` throu h the side of the casingjwhen so connectedir cordpassin reel, and electrica-l vconnections between V'said cord and theterminal to said socket.

comprising a lam socket, stan mounted upon said standards, an electrical ofthe reel', ,a crank connected tosaid reel' for winding .up the 'said conductor thereon, to

tatably supported by said standards, nie-` manipulation externally.,` an electric lightV lthrough 'an opening .in the cover of sai 'casing and wound'upon said 4conductor attached -to said reel,4 electrical' connections between said conductor and the terminals of the lamp socket through parts/ 7. An adjasable; electric 1i' la beider",l A

ards rigidly connected to sai' socket, a reel rotatlvely 960,076 l a L a'djus-t the height' of the holder, Ia toothed* In rtestimony whereof I have afxed 'my y Wheel connected to the reel, and a nlanually- Signature, in presence of two' Witnesses.

operated aWI Aor lock, en ageable with' said I wheelvforpmaintainng thegholder nany adv .Y JOHN v justment, said crank and lock together serv- Vitnesses; 111g to place and se'cur'e the holder accurately C. F. BROWN,

in any position. 7. PEZZETTI.

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