US1918828A - Lighting fixture - Google Patents

Description

July 18, 1933. ARRAS UAL 1,918,828

LIGHTING FIXTURE Filed April 8, 1951 Patented July 18, 11933 i y AUin'r Eo Sra'rfssfv s y 1,818,828 i i Y enoaennanss aan nwreirrn. wofiienrinrcnrcneo, rntmors "morir-ine FiXTRE' [L Q V.application filed Aprlf,

This invention relateslin Vgeneral to` an electric lightingfixture and has m n ref-par` ticular reference to thesupportmg, attachv ving and adjusting means for connecting the various parts of alightinolint-ure together.

Une of the principal objects of the inven- Y Y tion is in the provisionof an aperturedk supporting cap for the fixture, permitting illum1- nation of va portionof thespace ad]acent the 1o cap. A further object ot the invention isin f the `provision of a supportingcap having'a weather-tight top with inside'supportsrfor adjustablymounting a lamp 4socket therein.

Another object of the invention is in thev provision of improvedmeans Jfor attaching a lamp'shade and globe together without danger of cracking the globe, Y XI-further object of the 'invention is inthe .provision of quick detachable means for connecting la 2o shade or reflector to a supporting cap.

Other andturther objects will appear here'l inaftenthe drawing illustrating apreterred embodiment of the invention.` Y

In the drawing-Fig. 1 is a sectionalview of a xture constructed in accordance' with Vthe principles of this invention; Fig .2,is a section taken on the line 2-2 of Fig.' 1; FigzB. is a sectional view showing the 'conf nection between'the shade and globeyFig. 4

is a detail perspective of one of the fasteningjconnections between theshade and the holder cap; and Fig. 'is` a section of kone of the holders taken on the line 5-5 of Fig. 4f

In a lighting fixture it is desirable to pro-'i vide va shade or reiiector and a globe i'or-en closing the lamp which may be removed eas-` ily from supporting part of the' fixturev to; permit access tothe lamp for cleaning, r enewal and repair. In lighting iiXturesfov 40 this type it is alsoidesirable to changeor an adjustment is frequently necessary to olotain the best lighting eliects y f It is also desirable when using opaque refiectors to provide some meansl forV illuminating the space abovethe reflector to obviate a Vdark ceiling. In some cases this has beendone by providing perforations around Y. Vthe upper edge of the shade or reflector, but

5o in the present case thelower edge of the supporting cap is 'providedf withyopenings through which the llight rays may project.` The'present invention also provides a gwquick detachable connection betweenthe supporting cap and the reflector suchthat the movj er the spaces-between the legsg9 -acircular The Vlamp 11 is inserted n a socketV 14 "adi best or desired resultswith the reiiecting and light transmitting membersot the zkture.v

number of plates 24 attached to the top ofthe alter the lamps used andwith largerlamps x extremityr 28 providing iesrfsri'ai Nd. 528,810. j

ing ozt a single spring catch; will release the reflectorV for rotative movement by which it risdisconnected from the cap. 1 1 Referring. now* morev particularly to the drawing, the xtureeissupported by a metal cap o r holder 6 having a threaded upper end tori receiving a conduit V'pipe 7 and withv a squared or hexagonal portion Sat this end Y to assist 'in attaching thecap-to the conduit. Y At the lower edge of the capportion `are outwardly extending legs Qsupporting a holdingffring 1 0 and providing.v unobstructed 'i `Spaces'betweenthe legsfthrough whichlight will shine from 'an-,electric lamp 11. nTo cove transparent piece 12 ,ofjglassor other suit-` able material is inserted within the "caps Y and is-heldin place within the angularringl y 10 `byastening screws 13.

justable'inthe cap upon parallel rodsl' and `notches orgrooves 1 6 at 'intervals engaged;by}cla.mps 17 held in place-byscrews l 18 reached 'from the under 'or exposed side ofthe socket 14v and loosened or tightened 80 Y:trom the openV end o the cap 6 for adjust:-

ing `the height of the socketvv therein. -By this means lan electric lamp mountedin the socket may be raised orloweredgto obtain the 8.5

A transparent globe'20 of glass is provided to enclose the lower portionof the lamp11, and a retlector 21 ot metal extends outwardly from the. globeand is secured thereto and to the supporting ring 10. The reflector supportf'comprisesa number of equally spaced lugs`22jeXtendingQfrom the holder ringv 10,V each' having an inclined surface 2 3 and a refiector and; projecting upwardly Vinto Vthe pathwof thel lugs 22,. Each` plate has a slot 25 for engaging oneof thev lugs 22, and one oftheuplates Vhaving a spring. catch ,26 ('see V Fig.}5)fwith a slot '27-therein to engage 100 oneof the lugs 22` bendable outwardly at freeze'nd'to release the lug from"engagement.` with'its slot'j27 andhavinga curled outer a -flngerhold for moving `the Vcat h outwardly.'- In order to 10,5

prevent the catch from'. accidental VdisengageV-` ment with. anyone ofthe lugs 22, a guard 29\ projects overthe outeredge ofy the catch'havf inga free extremitywhich maybe flexed outl' kwardly ifnecessary byy engagementot the ,110* Y -v catch 26 therewith to admit and release the lug 22engaged thereby. `The plate 24, the catch 27 and the guard 29 arel secured together by rivets 30 and each of the plates 24l is attached to theupper edge of the reflector 21 byone or more rivets 31. l ,l

In order to attach the globe 2O `tothe rreflector, a resilient strip 32 of metal is attached intermediate its ends at one side of the reflector byfastening means 33 and the eX- tremities 34 are bent uponthemselves to provide rounded contact portions kadapted to engage a reduced orneck portion 35V about the upper edge of the globe. At the opposite side of the reflector is a movable contact piece 36 having extremities 37 adapt-ed to engage the neck 35 of the globe at some distance from the center thereof and to the central portion is connected athreaded stem 38 which extends through the rim'of the reflector 21 and has a nut orhead V39 atthe outer endfor adjusting-'the engagement of the Contact piece 36. A set screw 40' in the form of'a winged nut is threaded on the stem 38 and movable tokenl gage the rim of the reflector 2l for-holding the `stem against accidental movement in any adjusted position.` t l o VVit-h this construction the globe 20 may be removed separatelyfrom the reflector 21,9the reflector and the globe may together be re moved from the holderrin'g l0 landa lamp may be adjusted in height and removed either Vseparately or with its socket by simply removing the globe'20, leaving Athe heavy ,and

.. lugs,

cumbersome reflector 2l in place.,4 Light from'the lamp ll'is diffused and reflected downwardlyby the globe 2O and the inner surfaceof the reflector 21 and the space above the reflector and surrounding the cap is illuminated ythrough the transparent piece 12 and between the cap is illuminated through the transparent piece l2 and between the legs `l. `A lighting fixture comprising a'member with a supportingringhavingispaced a reflector having spacedy progections rwith slots to engage thelugs, andresilient meansalsocarried by thereflector having a slot to engage over one of the lugs and adapt# ed to be flexed outwardly for releasing the lug. 2; The'combination.with'astructure as set` forth in cla-impl, of'a iiexible guard 'extending over andengaging the lug where/the cap islocated-to prevent' accidental disengagement of the catch, the flexing ofthecatch also flexing the guard to allow disengage mentof the lug.

. 3.A In a lighting fixture, a member khaving asupporting -ring with projecting lugs each inclined-on one side,`of a reflectorhaving projections Vwith slotsadaptedto be engaged by the l ugs,ja` resilient slotted catch in connection with one of the projections adapted to `beilexed'foutwardly by any-*one of the inclined surfaces of the lugs as the shadeis en# i gaged with the holder, the catch being bendable'outwardly to free the engaged'lug theref 4:.1In a lifrhtino fixture asu ort a reflectorremovably attachable thereto, a globe l having a reducedvneck portion for attachmentto the reflector, and means comprising a spring strip attachable intermediate its ends to the reflector and having rounded extremities for engaging spaced points on the neck of the globe, rand an opposite Contact member having spaced extremities' and a screw threaded stemextending through the reflector andl attached to the central portion of the contact membermovable to press the globe against the yielding member.

y glnan electric fixture, a yieldingA globe support comprising a supporting rim, a spring member attached intermediatel` its ends to the rim having its extremities extending inward therefrom to engage the reducedk portion of theV globe, a threaded member eX- tending through the rim at the opposite side, a contact member attached intermediate rfb its'ends to the innerend of the'threa'ded mem- L'.

ber, theextremities onlyof theA contact mem; ber being adaptedto engage the reduced portion of -a globe, ahead for adjusting the threaded member, and a lock'nut .for locking the threaded member in place against the rim. p 6. In= a lighting fixture, a weather-tight supporting cap having a top threaded attach;

,ement opening, depending sides with integral outwardly-extending spaced legs having an attachment'ring at the outer ends, a. lamp adj ustably heldv inthe cap, and a transparent ringvmember secured to the under side of the V attachment ring, extenddng upwardly under the. legs, and having a collar to extend upfV wardly within the lower end of' the cap.

7. VvA lighting fixture comprising a vcap member withk a top ythreaded attachment opening, depending sides, legs extending out- Vwardly from the bottom of the sides, and a fixture rin0f at the ends of the legs" a trans- .v D Y l Y g D 7 s parent rlng'membersecured to the ring, underl 1110- the'les and inserted within the b b 7 ing downwardlywithin -thecap; a lamp socket adjustable on the rods and a lamp .carried by the socket 'and `movable to vary .the 'upwardillummation through the ring member.,` f Y GEGRGE ARRAS.

f DWIGHT WCRRELL;

Y lower edge of the cap; fixture rodsextend- 1

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