US965853A - Electric-lamp fitting. - Google Patents

Description

R. J. F.' js. BARON". ELECTRIC LAMP FITTING. APrLIUATIoN FILED JAN. 1v, 1907.

- Patented Aug. 2, 1910.v

a smmsanrni., 1.

3.1. P. S. BARON. ELECTRIC LAMP .ITTING. APPLIUATION FILEDJAN. I?, 1907.

Patented Aug. 2, 1910.

IR. J. F. s. BARON. 'ELEUTRIG LAMP FITTING'. 4 n 4 fI\.1?1 1`.10AT11 0NHmm mm1?, 1901.

965,853.' Patented Aug.2,1910.'

l' 3 BEEBTB-BHEET 3.

f Paras-formen f ""nEN rosnrrr rnwors SAMUELJBARON, orrams'rnnNon. V

To a/ll 'whomliit hwg/"concemf i Be itl: own that I,REN.JosriPJa FRAN.-

ois'SAMuEn BARON, a .citize'n'of the Republic of France, residing at Paris, Franceh ave vinvented a certain -new andiuseful Electric- Lamp-Fitting, Lof` which `the following is a specification.' Y This @invention relates to a new fittingl for 'incandescent-` eIectriclam'ps, suspended to rthe ceiling of a room, by means of which-it is possible, without cuttingo' the current supplied to the lamp orlamps, and without:

` being inconvenienced by the portion ofthe electric cable connecting the lam or lamps tothe circuit :-l, to move the ampin. a

` canbe placedon any piecef'of furniture in the'lroom, and as a wall lamp `by suspending it on `a vertical wall. The standlamp or the large radius for thev purpose of strongly lightingsome portion 'of the room, 4whatever be its `heiht; '2, toadjust the 'fitting of the suspende lamp,"so as to make itfplay the 20 part of a stand'lamp, sendin out'41t`s lurni nous rays; in any desired dlrection'."l This method of fixing makes littherefore possible 'without any interruption of the current, to use a suspension .lamp as a stand-lamp which wall lamp can be instantaneously again sus.

rended; Whenevef desi-redwithout the iight` being putfou'tp i A construction embodying the present vention,is illustratedin the accompanying drawin.` p Figurel is a vertical section showing the .j construction 'of'the,winding drum for -the cable supplying the currents when this' drum is xed to the ceiling, Fig. 1 is a plan Iof thelinner face of the casing of the winding device showing the bent conduit which di- 4o` rects the cable toward itsfexit from the casing. Fig.- 2 is a vertical f section of the winding drum vfor 'the cable when placed; in

the foot of a `standing lamp, Fig.`2'is a plan of the winding drum shown in Fig. 2

seen from below, therccessed `sides of the `drum being supposed .to be partiallyre# moved,"Fig. 3-is a vertical section of two distributing rings for theeleetric current, the` wires for which `are connectedinto a 50 single "cable a. Figs. lland 4a are two vertical sections showin the construction of the heavy glandl which s ides on thecable a and is intended to oppose `the winding of the cable. Fig. 5 shows in elevation and partly in section thehanging lamp in an inverted the metal contact Iring'.

if 'ELECTRIC-LAMB rITTING.

p i specmcauoii of Lettrsrtent; atentedugQZ, 1910. .appliwith inea January 17, i907. serial 110,352,797.

position and placed verticallyfto, form a stand lamp. .Thisilampis provided'with a` reversible shade arranged so that the current is supplicdrwithout Vinterruption to the 1ncandescent lamp b .whatever be the position -of theshacle and of` the la1np 'b. Fig. 6 showsin `outside elevation theapplication of ,the windingfdevicesecured to the ceiling for lighting with a suspension' lamp. Fig. 7

is a vertical section-on the axis of rotation of the support of the lamp shown Fig. 6,

showin the connection of the wires supplied lto `the amp. Fig. -8 is an outside elevation l in perspective` of the movable core whichsurrounds the axis of` rotation ofthe lamp and The two wires w and y-supplying the cur- -rent obtained from Ythe usual cable A, to

thelamp or' lamps, are formedinto a cable a which is wound' ona drum l driven by a;

coiled spring 2 attachedabove orbelow it.

This drum and its .parts are arranged in the Vrecess of a metal box @which is hidden behind ashell Z (Figs. i and 6),'1nade of metal or other material, and secured to the ceiling of the room, or inthe hollow stand or .foot

` of the stand lamp` (Fig,.r 2). The drum 1 .fand the spring 2 are mounted on a txed hollow ,pin 3 to which are secured the dis- .-tributing ringsfor the negative and positive `currents. The wires m and y supplying` the currents, pass linto the `bore of the pin 3 Awhich is provided along a portion of' its length with a longitudinal slot 4 for thepassage of the wires m and y which respectively pass' to Vthe yinsulated metal rings 5 and 6 which are 'mounted upon and separated by ,disks 7 of insulating material;v the whole being kept in place by a metal washer 8. Owing to the slot 4C, the spiral spring 2 securedto the'cheeks or sides of the rum l can be secured in the center, so that the `drum vrotates about the Xed pin under the action of the spiral sprin 2. On the'circumferenceof `the rings 'and 6 slide two independent metal contacts 1Q and :1l at tached--to aring 9ct insulating material by means of screws or terminals 12, 13 supplying the current from one or the otherpole orwire or` y in the cable A tothe corresponding wire or y of the cable a wound on the rmg 9which forms the winding surface oftheV drum.

When it isdesired' to secure the winding device to the ceiling, or at a certain distance from the ceiling'to the fitting of the appav ratus, the wires :1: .y are directed toward the hollowpin 3 by a passage way 14 on theinside of the box 0, and the-cable a on leaving the drum is guided by a roller 15 into a helical conduit. 16, attached to the interior of the box c which brings it at 17 below the spindlel 3 ofthe winding device. A bell mouth 18 screwedto-the bottom part'of'. the winding device', is intended tol holdfthe Ymolded shell d concealing the inner partsuof the winding. device, and to bring the cable a outside'. The spindle 3 isv screwed at the ceiling into a union pece'provided for the purpose. The friction exercised on the cable a bythe walls of the helical conduit 16, prevents thespring 2 from bringing it back ifithe'balance weight which will be hereinafter described, is sufficiently heavy. As soon, however, as the said weight is raised, the power of the spring 2 is sufficient to overcome the said friction and to bring back the cable a, and the lighting apparatusv is brought to the desired level.- I

When the winding device has to be placed in the base of a lamp or other lighting apparatugs, it is given in plan the shape shown in e Figs. 2 and2a, and one of the'cheeks or sides 1 of the drum is provided with notches 19 30- with which engages a. spring pawl 2() operated from the outside by a knob 21. When it is desired to wind u'p the cable which has passed freelyout of the box c between the rollers 15 owingto the movement of the lamp, it is sufficient to push the knob or button 21 which releases the spring 2 which drives the drum 1. The currents passing y into the cable from the ordinary electric wire A, after the said cable has been, wound on the drum, are supplied to vthe terminals 12 and 13, then collected by the contacts 10 and 11, and supplied to the wires :l: and y which are broughtv together into a common cable a lwhich passes through thehollow spindle '3, into the hollow column of the lamp. l i

' In case it isjdesired to apply the fitting accord-ingto this invention to a hanging lamp as shown-in Fig. 6, since at the momentwhen the suspended lamp is turned over and placed on a piece of furniture, or hung on a vertical Wall, the spring 2 for the cable a is no longer adected by the weight means of a bracket 26, adisk 27 Vto which is ,secured a spring 28 provided at the'top with a projection 29, which terminates opposite the perforationof the pipe 25 -and serves to push the cable a out'of the vertical, in order toprevent its Winding, except in the 'case when the gland is raised by' hand. The weight of the gland can be modied by placing-Weights on the dome 24. The projection 29 enables the gland to be moved on.

lsary to'direct its lumiousrays in the desired direction by means of a movable shade,

so as to send the light in the desired direction without interrupting the current. To this end, after having' passed the insulating false bottom 30 of the boxiixed in the recess of the bell e, constituting the molded'fo'ot of the lamp, the cable a is branched offin such manner that the wires a: andy constituting it, are separated and passed through different openings 31 made in the cup 32 of insulating material arranged in the bottom of the bell into the hollow column g of the apparatus, to .the end of which is -secured the support or bracket for the shade and the lamp b. The wires and y pass through the hollow branches 33 of the said support and terminate in the hollow trunnions 34 of fixed plates about which trunnions rotate plates or bosses 38 carrying a circular gallery37 for 'the hollow tube frame work 35 of the shade. The wires and y -pass through the said tubes and terminate in the ordinary socket R to which is secured the lamp the plates 38 which rotate opposite to each other -should be provided lwith stop notches for avoiding any torsion or twisting which would injure the Wires.

If it be desired that it should vbe possible to turn the shade in any direction, and to stop it atany angle, the construction shown in Fi s. 7 and 8 1s used, in which the wires as an y terminateat fixed metal rings 40, concentric with other metal rings 39 rotating with the shade, and from which the current is taken by the vwires :v and y which arewsoldered to the said rings 39 and passed into the hollow tubes 35. The rings 39 and 40 are arranged in an insulating material 41 which protects them against any outside contact, either with the solidr spindle 34 or with the decorative casing 42 which hides the joint. The fixed spindle or trunnion 34 is surrounded by a collar 43 secured to a flexible metal finger 44, the free end of -which rests o n the edge of the casing 42. The end of the said finger engages with recesses made on the circumference of the b. This arrangement requires that esatta casing, the said `recessesl corresponding to the different positions which the shade may occupy.

What I claim as my invention to secure by Letters Patent is l. In an electric lamp fitting and in combination, a casing,`means to secure said cas and desire d y ing to a ceiling, a central hollow spindle fixedin said casing, a drum rotatably mounted on said-spindle and'comprising a ringof insulating*` material which forms the winding surface of said drum, a coiled spring adapted to rotate said drum, `two into slide' respectively one ongeacht spindle ring and secured ion.- said dru1n-ring, a cable wound on said drumming and formed of' sulated rings fixed on said spindle within said drum-ring, two metal` coutactsadapted two wires connected respectively to said contacts, and au electric connection between each spindle ring and the wire of an electric supply cable.

2. In an electric lainplitting and in combination, a casing havingan opening in the upper part thereof and provided with a slot, means to secure said casino' to a ceiling, a central hollow spindle fixed insaid casing,

a 4drum rotatably mounted on said spindle and comprising a ringfof insulatingmate-l rial which forms the wlnding.V surface of said drum, a coiledspring adapted to rotate said drum', two insulated rings fixed on said spindle within said drum-ring, two metal contacts adapte-d to slide respectively one on Veach spindle ring and securedonsaid drumring, a cable wound on said drum-ring and formed of two wires connected respectively -to said contacts, a conduit within the casing leading from the opening thereinand ending oppositefthe slot'in said spindle, and an electric supply cable passing through said conduit and said slot into the interior of said spindle.l and having it two wires-connected respectively to said insulated rings.

3. In an electric lamp fitting and in cour bination, a casing; means to secure said casing to aA ceiling, a central hollowl spindle fixed in said casing, a drum rotatably mounted on said spindle and comprising a ring of insulating material which forms the winding surface ot said drum, a coiled spring adapted to rotate said drum, two insulated rings fixed on said spindle within` said drum-ring, two 'metal contacts adapted?.

` to slide respectively one oneachspindle ring and Vsecured on said* drum-ring, 4a cable wound on said drum-ring and formed of two wires connected respectively to said con` tacts, an electric connectlon between each,

spindle ring and the `,wire ofl an'electric supply cable, and `means within the casing.

which as the ydrum cable leaves the drum guide it belowsaid spindle.

4. ln an electric lamp fitting and in combination, a casing7 means to secure said cas in gto a ceiling,` a central hollow spindle fixed in said casing, a drum rotatably mounted on Asaid spindle and comprising a ring of insulating material which forms the winding surface of said drum, a coiled sprin adapted to rotate said drum, two insulate rings fixed on said spindle withinsaid drurnring, two metal `contacts adapted to slide,

`respectively one on each spindlel ring and secured on said drum-ring, a cable wound fon said drum-ring andformed of two wires connected respectively to said'contacts, an

electric; connection between each spindle ring respectively and the 4wires of an electric supply cable, and a bent conduit within said casing adapted to receive said drurnca'blel as it leaves the drum and guide it below said hollow spindle and a roller on said casing 'toguidesaid cable into said conduit.

5. In an electric lamp fitting the combination with a iixed casing, provided with an opening, a rotatable drum Aiiioited within said casing, a coiled spring controlling said drum, an electric cable wound on 'said drum and passing through said opening, and abent i conduit within said casing through which

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