US1219171A - Chandelier. - Google Patents

Description

M. D. SCHWARTZ.

CHANDELIER.

APPLICATION FILED ocT.2.`-19Is.

Patented Mar. 13, 1917.

IN V EN TOR. L

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UNITED STATES PATENT oEEroE.

MORITZ D. SCHWARTZ, 0F NEW YORK, N. Y.

CHANDELIEE.

To all 'whom t may concern.'

Be it known that I, MORITZ'D. SCHWARTZ, a citizen of the United States, and a resident of the city of New York, in the county of Kings and State of New York, have invented certain new and useful Improvements in Chandeliers, of which the following is a specication. i

The present invention relates to fixtures for electric, gas and other light systems; it pertains more particularly to a chandelier for the indirect lighting systems, in which, as well-known, the lamps are supported at some distance from the ceiling and positioned beneath the lamps are inverted domeshaped shades or canopies, which are held suspended by chains,` or other means, that are attached at their upperends to the strucl ture at a pointadjacentfto the ceiling.

The diiiiculty experienced with the indirect lighting'system has been that the domelshaped shadescannot be properly cleaned, and particularly can their inner faces not be cleaned without the use of a ladder, or some other support, which the attendant has to ascend in order to reach the shades. While it may be comparatively easy to carry around a ladder or similar support in large halls, it is very inconvenient to do so in crowded apartments, oices, workshops, etc. The result is that, usually, only the outer surfaces of the shades are cleaned as they canbe reached by the'ai'd of dusters, brushes, etc., without the use of va ladder; on their inner faces, however, dust and other foreign matter is allowed to collect, thereby greatly impairing the transparency or translucency, as

the case may be, of the shades, and thus the lighting power of the lamps.

The main object of this invention is to provide a lighting fixture for indirect systems, the shade of which is so mounted 'upon its supporting chains that it can be conveniently and readily lowered for cleaning purposes, etc.

Another object of the invention is to so construct a chandelier thatit can be manufactured on a commercial scale, or in other words, in such a manner that it is notso diliicult toproduce as to be beyond the reasonable cost of such a fixtures` 1` Specification of Letters Patent. Patented M31'. 13, 191 '7.

Application mela october'z, 191e. seri-.11110. 123,310.

With these and other objects in view, which will more fully appear as the nature of the invention is better understood, 'the same consists in the combination, arrangement, and construction of parts hereinafter described, pointed out' in the appended claims and illustrated in the accompanying drawings, it being understood that many changes may be made in the size and proportion of the several parts and details of construction within the scope of the appended claims without departing from the spirit or sacrificing any of the advantages of the invention. A

Two ofthe many possible embodiments of the invention' are illustrated in thefa'ccomd panying drawings, in which Figurel is a front elevation of a lighting fixture constructedV in accordance with the principles of the present invention; Fig. 2 is a vertical longitudinal section of one of the connections between the shade and a supporting chain, on a larger scale; Fig. 3 is a section taken on line 3 3 of Fig. 2; Fig. 4 is a top plan view of a` modified shade; Fig. 5 is a section taken on line, 5-5 of Fig. 4,

on a larger scale; and Figf is a section y member is connected by links 15 with atubular body 1 6, that lis fastened in any lsuitable manner to the cup-shaped member V10, and carries hooks 17, which form supports for soV chains-18, the lower ends of whichV support Y la dome-shaped, invertedv shade or canopy 19,

which may be of opaque material when an Yindirect lighting system is used, or maybe translucent where a semi-indirect system is desired. t

The connection between each chain and the shade is made by extensible means, which are all alike, so that herein only one of the same. will be described, The extensible means'is shown in detail in Figs. 2 and 3 of the drawings, and comprises a cylindrical casing 20, having a detachable cover 21. Upon the casing is 'formed an eye 22, into which is hooked the lower end of a chain 1S. Longitudinally there extends through the casing a spindle 23, upon which is rotatably mounted a drum 24. Upon this drum is wound a flexible means, such as a cord or wire 25, one end of which is attached in any suitable manner to the drum, while its other end projects through an aperture 26 in the cylindrical portion of the casing, andhas attached thereto a hook 27, which extends through an eye 2S, thatis in any suitable manner secured to the shade 19. lVithin the drum is disposed a 'spiral spring 29, its inner end being fastened to the hub 3G of the drum, while its outeil end is made fast to the casing. For the latter purpose there may be screwed the detachable cover 21 a bolt 3l, around which the outer end of the spring is drawn.

Usually1 the shade 19 is supported by three chains, and consequently there are three of the extensible connections provided.

The operation of this device is as follows: The normalpositions of the elements of the apparatus are shown in Figs. 1 to 3, inclusive, in which the shade 19 is in its raised, operative position, and the springs 29V are in their extended or unwound state, holding the cords or wires 25 wound upon their respective drums. The tension of the springs and the weight of the shade are such that the latter will be kept normally in its raised position. YIf it is intended .to lower the shade for cleaning purposes, etc., it is taken hold of. by somem'eans and pulled downward. As the shade is being lowered, the cords or wires 25 are simultaneously unjwound from the drums. In unwinding, the

drums rotate in the direction of the arrow shown in Fig. 3 of the drawings, with the result that the springs 29 are wound up, or in other words they are put under tension. The operator, while cleaning the shade, holds lthe same in Yits lowered position againstthe action of the springs 29. After the work has'been finished, the shade is lpermitted to ascend slowly. The ascent of the shade is automatic and is effected by the springs 29, which, as the shade is released, have a tendency to return to theirnormal, unwound state, thereby .rotating the drums V24 in a direction opposite to that of .the

arrow shown in Fig. 3 of the drawingsand 'winding the cordsror wires 25 upon the said drums. v

The modificationy shown in Figs. L1 to 6, inclusive, differs only slightly from the device above described. In thiscase there is attached to Vthe rim of the shade an endlessY tubea32, for instance, by clips 33. This tube is provided. withthree cylindrical enlargements 34, which may be either made integral with the tube or they may be made separate and;V xedly attached to the tube, for instance, by screws 35. Within each of these enlargements is rotatably mounted a drumk drum, while its other end is fastened to the tube 32.

The operation. of this device is in all respects identical with that of the one above described. lVhen the chandelier 19 is being lowered, the cords or wires 25 are unwound from their' drums 36, which, as they rotate, wind up the springs 3.9. If the shade is released, the springs return to their normal state, in which they wind up the cords or' wires 25 upon their drums.

Vhat I claim is:

1. A lighting fixture for indirect lighting systems comprising a support adapted to be secured to a ceiling or the like, a plurality of flexible supporting members dependingY therefrom, an inverted dome-shapedshadc, an endless tube secured -to said shade having a number of cylindrical `enlargements corresponding to the number of flexible supporti ing members, a drum rotatably mounted in each enlargement, a cord attached to each drum and wound thereupon and secured to its respective flexible member, and a plurality of springs withinY said tube, each spring being attached to one drum and to said tube. Y

2. A llighting fixture for indirect lighting systems, comprising a support adapted .tofbe supporting members depending therefrom, an inverted'dome-shaped shade,

V secured to ceiling or the like, a plurality of Y flexible a plurality' of drums corresponding lto the number of said flexible supporting members rotatably mounted upon-said shade, a cord attached to each drum and wound thereupon and secured to its respective flexible mein-M ber, and a spring attached to each drum and said shade.

. 3. A" lighting fixture for indirect lighting systems, comprisingasupport adapted to besecured to a ceiling or the like, a plurality of fiexible supporting members depending therefrom, an inverted domeshaped shade,

a plurality of cylindrical casings V.GOlIespending to the number of said flexible sup- Signed at New York, in the county of porting members attached to said Shade, a New York, and State of New York, this drum rotatably mounted n each casing, a 26th day of September, A. D. 1916.

cord attached to each drum and wound MORITZ D. SCHWARTZ. j. thereupon and secured to its respective fleXi- Witnesses:

ble member, and a spring attached to each EMMA GABEL, drum and said shade. Y HARRY TUGENDHAFT.

Copies of this patent may be obtained for iive cents each, by addressing the Commissioner of Patents( Washington, D. C.

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