US1778869A - Electric-light fixture - Google Patents

Description

Oct-'21,v 1930.. H. U. scHocKETT ELECTRIC LIGHT FIXTURE Filed May 13, 1929 ,4477? Zaac/ef A l l Patented Oct.l21, 1930 gsijATfES- minare. scnocxm'm, onnENvEn, Comitato; ,i

Ergebnis-morir FIxrUas,ykr n,

Application filed This invention relates to improvements'in electrical fixtures Aof the type employing achain and which are ordinarily referred to as chain pendant fixtures. j'

In the present construction of ixtur'esof the type to which this invention relates, the upper end of the chainy is usually secured 'tof the canopy by means of a loopconnectedwith the Canopy by means of knurled nuts and the entire weight of the iixtureis therefore'supported by the canopy. lThe canopy is secured to the outlet box .or tothe ceiling by means ofr screws. With a constructionoit thisv type the weight of the lixturefmust'be-supported by the wires during installation and thismales it ditlicult for the workmen to splice the wires and to solder andftape them. i

In ixtures of this typethe lower end of the chain is also connected with thel shade holder by means of a cast loop to the lowerV end of which the lamp Vsocket is connected; VThis permits no adjustmentsof` the shadeholder with respect to the lamp and therefore when lamps oi' different sizes andshapes'are em-v ployed, the best results cannot Vbe obtainedl as the position of the shade cannot be adjusted With respect to the lamp. A

It is the object of this invention to produce a pendant fixture of such constructionthat both the canopy and the shade holder `can be moved along theV chainA and fastened to 'thel latter in any desired p osition.V

It is another object of thisinventionto pro' duce a pendant fixture of such construction' that the upper end of the chain canbeconnected with the outletbox before the wires are spliced and which can be secured 'toont-r let boxes'having Vfixture studsor 'to loutlet boxes that have noiixture studs and'no 'ini- Wardly projecting ears as well as to V'outlet' boxes provided with inwardly extending ears that have threaded openings `for the reception of screws. .i 1 ,Y

l The above and` other objects whichfmay become apparent as theldescription proceedsl are attained by means of a construction and an arrangement of parts that will now be described ink detail, referenceior thispurpose being'ha'd Yto the accompanying` drawing in 192,9. serial. 362,533( p' Yhich the prek y illu-stratedkandin" which: i

Fig. lis a vertical section through one of my improvedypendant fixtures; and i Fig. 2 is a section takenon'line 2 2, Fig. 1'."

erred embodiment has beeny resents the plaster of a ceiling in which the outlet box 2 is embedded. The ylath to'which the plaster is applied, hasnot been shown; ln the example illustrated, the outlet box is of the shallow type which comes iiush with the surface ofthe plaster,- but' can ybe Cta" deeper typeif necessary asthe depth'of the) outlet box' is immaterial as far as this in?k i vention` is concerned. In the' illust-ration given, `the outlet box'is provided with ay threaded iixtu're stud 3, as well-as kwith in-v wardly projecting Vears l that areperforated y and threaded for the reception of screwsf.:

is immaterial as they are merely used for the purpose of permitting the`use otasingle size of cast loop with any size of cap. lt is k'evident that where a fixture stud is employed,

the vbridge canbedispensed with andwhereA a bridge is employed, the liixture stud is vun-l necessary.' ',As my inventionv does notrelatef" to the particular `means employed fory securing Y the ixturetothe outlet box, this will" not be described in further detail but'the description will now-be directed to that part otV the fixturevto which myr invention, relates.r Instead of using a slide sternfor holding the canopy 13 as is sometimes doneI secure the latter to the chain inV such a Way that it can be moved longitudinally :of thejchain and fastened tothe latter in any position desired." f Y The canopy can be of any ordinary design with the exception thatk at the. lower end-.it

55. In the drawingreference numeral lrep`A o l from brass or any other suitable materialV "and which is securedV tothe canopy in any manner desired. In the .embodiment illus- `trated, the hubhas been shownoas attached to the canopy by solder but this Yis merely for the purpose of illustration and in actual slots 16 which kare located ninety degrees practice somev other method of joining t-his hub to the canopy will undoubtedlybe used. The hub has a cylindrical outer surface and is provided with a central cylindrical opening 15. The wallof opening 15 has yfour apart and areof such depththat the distance between the bottoms of diametrically located slots is equal tothe outside dimension of the links 8, so that the chain willVr pass through the hub in themanner shownin Fig. 2. For the purpose of clamping the canopy toV the chain, IV have provided the hub ,with 'two threaded openings that communicate with the correspondingly located slots and in which are located screws 16a that can be rotated from the outside by means of a suitable screwdriver; These screws, when rotated in such a direction that they move inwardly Vwill be made to engage theside of one of the links and clampthe canopy to the link, as shown in the drawing., For the purpose of preventing these screws from becoming lost, each screw has been provided with a head 1,7, which is located withinthefslot and therefore when they are unscrewed, the head will engage the inside of the threaded opening and hold the screw against becoming withdrawn and lost.A

Where aV chain switch like that indicatedby numeral 9 is employed, the canopy vis provided with a grommet 18 through which the pull chain l19fe1rtends. This chain'mav'have an extension 2O that terminates inV an ornamental pendant. 21 that vis located at such a height thatit can be conveniently reached for the purpose of operating the switch. o

The holder 22 is constructed in substantially the samemanner as the canopy andA the hubl and means by which it is secured to` the chain have therefore been designated by the same reference numerals as those used in- Fig. 2. The canopy and the holder usually differA in thisrespect that the'holder has a cylindricalriiange 23 that is provided withV a plurality of screws v2li# for engaging. and

VY*holding the shade 25.

It is evident that the holder 22V can :be adjusted `relative to the socket 26 and that it is therefore possible to The to the-lamp so as to ,qet'the best results.

socket is connectedmwith'the lower end of tached to an outletboX and lwhich will fit any condition of wiring' such as conduit or adjust the position ofthe shade with respect' knob and tube work and which can also be. applied to outlet boxes of varying depth and of different diameters. Thefixture is sup ported from the ceiling or from the outlet box and is not supported by the canopy which makes aV stronger and more substantial construction and which results in a -device that tion of these fixtures requires no eXtra tools as an ordinary pair of pliers and a screwdriver are' fall thetools that are necessary during the installation, and the holder and the'lampcan be readily adjusted to suitany condition.V n i Having described the invention what is claimed as newiszf l A 1. A pendant fixture comprising,vin com- ,can be more readily installed. The installaj bination, a chain, `means for.securing.one,V end of the chain to a support, a canopy or the like slidably connectedwithv the chain, said canopy having an opening in one end through which the chain passes, the wall of the opening having four grooves spaced ninety degrees apart,A the two oppositely located grooves being adaptedto form passageways for-alternate links of the chain and the l,other pair' of oppositelyglocated grooves forming" passageways for the other links. andr ,screws extending through the Vwall lof adjacent grooves, said screws being adapted Vto engage the chain to, hold the canopy against longitudinal movement thereoin 2. A'canopy, orthe like, adapted to be cured toa chain, and'to vbe held against loi-- Y gitudinal movement therealong, comprising a hollow member provided at one end with a hub havingan opening adapted to receive the chain,.said opening having two pair of diametricallyflocated grooves adapted to receive and" to forma passagefor alternate links of the chain, vanother pairof grooves located in a plane which ima-kes an angleof substantially ninety degrees with the Vplane ofthe .other pair of groovesfand Vclamping screws located in the hub, one screw for each pair of grooves, said screws servingas means` for holding the canopy Vin Va predetermined Vrelation vwith respect to the chain.

A pendant iixture comprising, in conibination, meansffor securing one end of the chain to a support, a canopy orllthe like slid- Y ably connected with'thechain, said canopy having an opening l'in one end through whichY the chain passes, the wall ofthe openinghaving fourlgrooves spacedninety degrees apart, the two oppositely locatedV grooves being adapted to form passageways for alternate links of thel chain land'theotherpair of 'oppositelyhlocated grooves formingv passage# ways for the other links,"and means secured to the canopy. for engaging the chain'Vv to hold the canopy against longitudinal movement thereon. 'i

VIn testimony whereof I atlix my signature. i HARRY. U. SGHOGKETT. y

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