US1691938A - Lighting fitting - Google Patents

Description

Nov. 20, 1928.

1,691,938 E. L. RANDALL LIGHTING FITTING Filed July 7, 192

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Patented Nov. 20, 1928..

UNITED STATES I items w EDGAR LANGLEY RANDALL, OF MUSWELL HILL, ENGLAND, AssreNoa To THE GEN- ERAL ELECTRIC COMPANY LIMITED, OF LONDON, ENGLAND, .A BRITISH COMPANY.

LIGHTING FITTING.

Application filed July 7, 1926, Serial No. 120,919, and in Great Britain March 31, 1926.

This invention relates to lighting fittings and more particularly to galleries ior supporting glassware or the like, and 1s especially applicable toelectric lighting fittings,

the object of the invention being to provide an improved lighting fitting of simple construction which may be readily opened, by lowering a globe, shade, or the like, from the canopy covering an opening therein, to give access to the interior for inspection and cleaning without taking the fitting to pieces, and which may also be readily reclosed merely by raising the globe or the like to the canopy and which presents a neat and i compact appearance, without unsightly working parts exterior to the canopy;

A lighting fittingaccordance to the present invention comprises a compact unit in- 'cluding a canopy for covering an opening in the top of an illumination appliance such as a globe'or the like, flexiblemeans, a support for the said appliance connected to the flexible means, and contained within the canopy a member arranged to be rotated by hand in the one or the other direction about the axis of the'lighting fitting, and adapted i by such rotation to change the flexible means from the extended position to raise the support to the canopy, and to allow the fiexi 3o ble means to extend to lower the support.

The invention will now be {descrlbed by j way of example with referenceto the ac-' companying' drawings, in which Figure 1 is a half sectional side elevation of one, embodiment of the invention, Figure 2 is a half sectional side elevation of another embodiment of the invention, and Figure 3 is a plan View of a supporting ring. I

In the drawings glass globe lis supported by ring 2, which is held in position by two "flexible plaited copper suspensionwires, 3. The fitting may be suspended by ring 4, screwed onto central spindle .in position by screw6; y Y

In Figure 1 drum 7 is rigidly attached to cover 8, which forms the upper part of a canopy, and which is rotatable'on-spindle 5,: I that supports the lower part 90f the canopy rigidly connected to two armed'spider 10 I screwed onto the spindle. Theupper part I of the spindleis also provided with threads for co-operating "with locking nut 11,1wh-ich is adapted to clamp cover Sagainst positioning sleeve-12, thus securing drum 7 in posi tion.

5, and locked" I the lip. A screw 22 screws througha thick- .raised position.

The upper ends of suspension wires 3 are secured in brass tubes 13, fastened to the upper part of drum 7, whilst the lower end of each suspension wire is passedthrough a hole 14 in a lug 15 of ring 2, and fitted with a cap 16 of such size that it will not pass through thehole, but will serve to support the ring. Each wire 3 is passed through an eyelet 21 in canopy 9, which eyelet serves to guide the wire as it is wound onto'the drum 7. i

When looking nut 11 is loosened, Cover 8 may be rotated, thus unwinding wires 3 from drum 7, extending the wires, and lowering ring 2 and globe rl'trom the raised position. When ring'2 is in the lowered position cover 8 may be rotated to change wires 3 from the extended position and'wind them onto drum7, thus raising ring 2, which may be locked in a raised or in an interinediate position by tightening up looking nut 11.

In Figure 2 lower part 9 of the canopy is secured to a three-armed spider 17,-which screws onto the upper part of spindle 5,

whilst cover 8 forming the upper part of thecanopy is clamped between spider'17' and ring 4.

The part 9 of the canopy is provided with an annular downwardly projecting-flange 18, and with hoop 19, rigidly securedfto the part 9, and formed in such a way that it retains lip 20 of canopy 9but allow's' rotapass through the hole, but will serve to support the ring. Each wire 3 is passed through an eyelet 21in lip 20, which eyelet serves to guide the'wire as it is woundonto ened portion of lip 20, and when tightened up bears against flange 18, thus securing lip 20 in position relatively to the part 9 of the canopy. i

' l/Vlien screw '22 is loosened lip 20 may be rotated, thus unwinding wires 3 from the lip Hill adjacent to eyelets 21, extending the wires,

and lowering ring 2 and globe 1 from the change'wires 3 from the extended position I When ring 2 i is '-in the ,lowered position lip 20 may be rotated toof the canopy serves as a ventilation opening, and spindle 5 may be hollow so that conducting wires may be passed therethrough.

I The supporting ring includes two parts 24, and 25, hinged togetheratQG, and fitted with lugs 15. hen the globe 1 in position, ring'2 embraces neck 27 of the globe,

the free ends of the ring are fastenedtogether by screw 28, which passes through thev endrof part 25, and through plug 29 rigidly secured in the end of part 24-. unscrewing screw 28 and rotating part 25 about hinge 2,6 globe 1 maybe removed from the ring.

The scope of the invention not confined to the described embodiments thereof, and those embodiments may be varied, for example, in Figure lit may be arranged for cover 8 to be rigidly fastened to spindle 5, and for lower part 9 of the canopy to be ro .tatable. The flexiblemeans may be in one length, -,b,eing-fas tened to the drum or the like member near the centre of the length, for instance, by hooks, or by. being passed through holes in the drum;

'What is claimed is 1. A lighting fitting comprising a compact unit including a canopy for covering an opening in the top of an illumination appliance, flexible means, a support for the said appliance connected to the flexible means, and

contained within the canopy a member ar-' ranged to be rotated by hand in the one or the other direction about the axisoffthe lighting fitting, and adapted by such rotation to change the flexible means from the Y extended position to raise the support to the canopy,-and to allow the flexible means 1 to extend to lower the support.

2. A lighting fitting comprising a compact unit including a canopy for'covering an open- 7 ing in the top of an'illumination appliance,

flexible means, a support for the said appliance connected to the flexible means, a locking device for locking the support in position, and contained Within 3 the canop a memberarranged to be rotated byhand in the one or the other direction aboutthe axis of the lighting fitting, and adapted by such rotation tochange the flexible means" from the extended position to raise the support tothe canopy, and toallow the flexible means to extend'to lower the support.

3. A lighting fitting comprising a co pact unit including a canopy for covering an opening in the topofan illuminationapplr ance, flexible means, a su port forthe said appliance connected to tie flexible means, and contained within the canopy a member,

arranged to be rotated by hand in the one or the other direction about the axis of the lighting fitting, and adapted by such rotation to draw the flexible means within the canopy, thereby raising the support to the canopy,oand to allow the flexible means to extend to lower the support.

4. A lighting fitting comprising an illumination appliance and a compact unit including a canopy for covering an opening in the top of the appliance, flexible means, .a support for the appliance connected to the flexible means and adapted to be attached to the appliance but readily detachable there tro n, 'and contained within the canopy a member arranged to be rotated by hand in the one or ,the other direction about the axis of the lighting fittin and adapted by such rotation to change t 'e flexible means from the extended position to raise the supp ort to the canopy, and to allow the flexible means to extend to lower the support;

5. A lighting fitting eompri'sing an illumination appliance and a compact unit including a canopy for covering an ,openipg'in the top of the appliance, flexible means adapted to be connected to the appliance, and contained within the canopy a member, arranged to berotated by hand in vthe one ,or the other direction about the axis of ,tlie lighting fitting, andadapted by such rotation to change the flexible means fromlithe extended position to raise theiappliance to the canopy and to allow the flexible to extend to lower the appliance. i

6. A lighting fittingcomprising acompact unit including acanopy- ,for covering an opening inthe top of an' illumination appliance,- fiexible means,a.support for the ap- ,pliance connected to the flexible means, an

part thereof a drum, arranged to be rotated by hand in the one or the other direction ,unit including a canopy for covering an opening inthe top of an illumination appliance, flexible means adapted to be connected tothe appliance, and'contained .within the canopy; and secured to an ,upper part thereof 'a drum, arranged to be rotated byhand in the one direction. or in the other vdirection about the axis ofthe lighting fitting relative ly to a lowerpart of the canopy,and adapted by such rotation to change the flexible {means from the extended position to raise the apcontained within the canopy near the upper i pliance to the canopy, and to allow theflex- V ible means to extend to lower the appliance,

and a locking device for locking the appliance in the raised position.

8. A lighting fitting comprising a compact unit including a canopy for covering an opening in the top of an illumination applie ance, a central spindle supporting the canopy, a drum contained Within the canopy and mounted on the spindle in such a way as to be rotatable in the one direction or in the other direction by hand, positioning means, a locking nut rotatable on the spindle for cooperating with the positioning means to clamp the drum in position, a support for the appliance, and flexible means connected to the support, and adapted to be wound onto and oil the drum to raise the appliance to the canopy, or to lower the appliance.

9. A lighting fitting comprising a compact unit including a canopy for covering an opening in the top of. an illumination appliance, flexible means, a support for the appliance connected to the flexible means, said support including a ring having two parts hinged together at two adjacent ends, and means at the other ends for securing these ends together when the ring is operative, a member contained within the canopy and arranged to be rotated by hand in the one A or in the other direction and adapted by such rotation to change the flexible means from the extended position to raise the support to'the canopy, and to allow the flexible means to extend to lower the support, and a locking device for locking the support in position. A

In testimony whereof I afii'x my signature.

EDGAR LANGLEY RANDALL.

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