US1756309A - Lighting fixture - Google Patents

Description

API'il 29, 1930. R. w. scHwElKER 1,756,309-

LIGHTING FIXTURE Filed Aug. 22, 1927 'Patented i930' y y 'i 1,756,309-

iiNirriazli STATES `rn'irzlai-1-oFFicia: *A 'I l :aoY wj'scisiwiiixnii, el'nnnsnnnnjrENNsxiivANIii Y l n I 7' nieirrinq nixfrimii y .A A v *A v.Application.iled'August 22,11927. ySerial No. 214,596.y l Y y l This invention relates to lighting fixturesy l alighting fixture having 'ai' pair yof lamp of that general lclass, employing a plurality -f sockets respectively containing a high power,

A' 15 battery, may be switched on.

of sockets for electric bulbsorlamps;` long-neck electricv bulb 'for normal useV and In certain States, the rrequirei'nentis made a lowlpower short bulb for emergency use,

' 5'that'in certain'electric lighting installations, the respective sockets Abeing on independent 50 Y as, for instance, in hospitals, 'there shall be circuits, one of which is supplied bythe usual l provided vktwo` independent electric lighting lighting circuit and the other by a storage ;V Y circuits, each having-its own source of elecbattery ,of suitable, independent, auxiliary Y trical energy, for instance, one 'circuit being Source of electric current.`

im they normal circuit, .and another an emergency In practice, the -two sockets 'are arranged at circuit, lso that if'ithe normalcircuitbecomes '21D angle to eachy other both being carried by impaired the Aemergencyor reserve :circuit Snppqrting in eans appled'to, and preferably having its 'independent source j of electrical contained within7 the lamp canopy, each currentY derived, forinstance, from a storage SOCket being separately wired. t

' t n 1 The embodiment of the invention which is G0 The Object. of the present invention is to hereinafter described-and is. shown in the provide any improved'lighting fixture paraCCOHlpanyng drawings utilizes a type of tcularly adapted. for: use kin. installations Canopy and Supportlng plate Set forth in eerywhere, the foregoing requirements must; be tainof my earlier applications and patents l 2O Observed, vhave, Separate electric ,blib lt'lS Y1'1016 GSSGIllal t0 the pI'SSeIll) lIlIVeIltln 65 v t Sockets "for Separate lamps 1-01 bulbs7 each that the latter be used in connection with'this g socket being includ'ed'in its own circuit inde- Plltlcllla type 0f CaIlOPyand Supporting y pendent of the remaining socket, `and to'relaplate When the `lnvenl'fion Vis regarded inits tively farrangefthe sockets andthe electric lOIYOldSSU 21519606.V` v

` lampsor bulbscarried by them so that under In the V@CCPMWII'g drawings@V I "I vro normal lighting Conditions the-,bulb vor' lamp Figure lis a vertical section on the vline then usedwill cast no shadow on the glass 111Figur 2,'thr0ugh'the canopy and sup- Y c lampV tov provide adequate illumination when Shade;

shadeA which encloses the bulb; further, to P Olftlllg Plt,S hOWhg the invention, dotted varrangefthey emergency socket and bulb or hnesellesveltllg 4the' Outl'le of the glass the emergency bulbl is lilluminated and 'the j Flglle 2 1S a bOttoln View of the supportnormallynsed bulb is unlighted; v 111g Plate ald th? SQCletS; and f The invention comprises a, lighting fixture Figure 3 is asimilar view, the sockets being having, first, a pair 'oflamp sockets relatively Qmltted- Y t n arranged so that whenvthe bulb normally AThe canopy appears at l and, as shown, is so` used isr illiiminated,`itl will be sok disposed rof the contour and' characteristics of the porwithin the enclosing' glass shade that the raysy @Glam CaIlOpies Vshownrand described in cer- @flight Wilinot be interferedwwith by ifea: tainofmy eerher applications. f j son ofy the remaining socket carrying the 'Themetal'strap'shownat 2-c`onstitutes a emergency; unlighted bulb and, hence, no means'for connecting the canopy tothe elec'- shadow will ybe cast on the shade', particutrical' outlet box' which is attached' to the larly in respect torays whichare directed ceiling or wall of the roomwliere the fixture downwardly because `itvwill be understood is used;- Y' Y v v 1 Y Y thatv the inventionis particularlyv designedy The canopy lis supported by a plate 3 s for use on ceilingy lightingfxtiires; second, Awhich islo'cate'd under a shoulder 4 on the Do instance, from-a storagebattery.

generally the same as that shown in my earlier applications.

I provide two'electric sockets 9 and 10 whichA may be of any suitable construction or type. These sockets are. secured to the plate 3 by bosses 11, 12, carried by the sockets, and extendingthrough openings 13, 14 in the plate 3, nuts 15,16being screwed on the `bosses to clamp the sockets 9, against the plate 3. It is not material Vhow the sockets 9, 10 are fastened in position. 1 Y

'Ihe socket 9 is arranged at an angle, other tlian190,inprelationto the plate 3. The. socket 10 may either be disposed at vanV angle of 90o tothelplatel or at an inclination, it being understoodthat therelative disposition .Y .of the sockets 9and-10 is such that when the normal or high'rpowered electric bulb 17 is screwed into the socket 9, it will be disposed in the general central axis of the glass shade or globe shown by dotl and Clash lines 181 andnearto the:` lower part thereof so Vthat by employing a high powered, long-necked bulb i 17j fornormallightingpurposes, and by employinga Vlower power Vshort-necked bulb 18 in the socketrlOfor-emergency lighting pur-V poses, the illumination normally provided Vby the bulb 17'is not interfered with, at

least, as to raysof light projecting throughl the bottom or outermost side of the shade 18a and no troublesomeshadow is cast on theV shadebyreason of the employment of the emergency bulb 18.

YThe socket 9 vis Yin the normal lighting cir Ycuit-19,whereas-the socket lOlis included in the'emergency lighting circuit 20 which receives itscurrent from any suitable auX- iliary, independent, source of power, as, for.

i Normally, the circuit 20 is open, any suit-Il able. switch being'Y provided for that purpose;

consequently the bulb 18 is only used in case of failure of the current supplied tothe circuit 19. The bulb 17 is the one which is" normally used for lighting purposes and ref ceives its current from the usual lighting circuit in which are included the wires 19.

VA practical embodiment whereby the socketj9 isl arranged at an angle other than 90O to the plate 3, is that shown where the plate 3 isprovided with a-tilted or inclined odset or seat 21 so that the base of the socket 9 is received in said seat and hence the socket i is disposed at an angle as shown. Should the current supplied to the circuit 19 fail, the lamp `18can be illuminated by closing the circuit 20 and will afford adequate illumination during the emergency, although the lamp 17 will cast a shadow on the shade 18 in that instance.

In practice, while I do not limit the invention thereto, a 40 watt lampniay be used as the emergency lamp, whereas a 100 or 150 watt lamp maybe used at 17.

What I claim is:

1. A lighting iixture provided with a fixture plate, an electric lamp socket carried thereby in offset relationship to the central part of said plate and which isvincjlined in relation to said xture plate ina direction toward the general central axis of the fixture, a longnecked electrical lamp carried by-"said socket and having its bulb disposed in the general central axis of the lighting fixture and adapted for normal use, a second electric lamp socket carried by said fixture plate in odset relationship tothe central part of said plate, and a short-necked electric lamp carried by said last-named socket and disposed. above the bulb of thelong-necked lamp andadapted for emergency use.

2. A lighting fixture comprising a canopy, a socket supporting plate engaged therewith which also supports the canopy, and independent electric lamp socketscarried by said plate, said sockets being relatively inclined in downwardly converging relation `to each othergfor disposing the lamps carried therebyin downwardly converging relationship to each other, a short-neckedlamp in one of saidysockets, and a long-necked lamp in the other socket, whereby the bulb of the longnecked lamp =i`s 'disposedfin advance of the bulb of thesh-ortfnec'ked lamp and lies in the generalv central axis of the fixture. Y 3. Afflighting fixture provided with a tix ture plate having lan aperture in the central part thereof, an electric lampV sockety carried by said-plate in oiiset relationship to the central part of said plate and Ywhichtis inclined'inrelation to said platein a direction toward the general central axis ofthe fixture, a long-necked electric lamp carried by said L socket and having its-bulb 'disposed in the general central axis of the lightingflxture and" adapted for normalv use, circuit wires from said socket which run through the aforesaid aperturefasecond electric lampV socket carried by said fixture plate-in oiset relationshi-ptothe centralpart of said-plate, short-necked electric lamp carried by the saidV lastrnamed socketv and disposed above the bulb and the long-necked lamp, and circuit wiresindependent of the aforesaid circuit wires, connected to said last-named socket and'running through Vthe aforesaid aperture.

i 44. A lighting fixture comprising a canopy, a fixture plate engaging and supporting said canopy, said plate Vhaving a seat which is inclinedr or offset inV relation to therplane of the said plate, a lamp socket engaged with, and

connected to, said seat and, by virtue of its seating, being disposed in inclined relationship to the seat in a direction toward the central aXis of the Xture, and another lamp socket connected to said plate, a long-necked electric lamp carried by said first-named socket, and a short-necked electric lamp carsignature.

ried by the last-named socket, the bulb of the long-necked electric vlamp being below Y the bulb of the short-necked lamp.

In testimony whereof I hereunto aiiX my ROY W. SCHWEIKER.- Q,V

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