US1086874A - Lighting-fixture. - Google Patents

Description

F. W. WAKEFIELD. LIGHTING FIXTURE. APPLIOATIOH IILED $22123, 1909.

Patented Feb. 10, 1914.

' chain B which supports the fixture body C support is used, it is usual to intertwine the ing the feed wires,

unrran STATES PATENT. OFFICE.

1mm w. WAKEFIELD, 0! vultures, OHIO, AS8161")! TO THE F. W. W-IIIIELD BRASS COIPANY, '0? VBIILION, OHIO, A MIGRATION OI OHIQ LIGHTING-FIXTURE.

Specification of Letters Patent. Application filed September 28, 1809. Serial No.

Patented Feb. 10, 1914. 519,107.

mental form, but the flattened links as shown are adapted to yield great rigidity to the chain and yet to preserve an ornamental appearance. The top link of the series 1s open at one end and has its two lateral xtensions attached to the rod inclosing the feed Wires. Fig. 6 illustrates a form which may be used instead of the top link ofthe series as described. This form comprises a hook E adapted to be screwed onto the pipe and to receive and support one of t e series of similar links.

The insulating material D is disposed upon the inner surfaces of these links and is attached thereto in any suitable manner. The insulation, instead of being merely the Width of the link, is made somewhat wider surfaces of the links, as is clearly seen by an examination of Fig. 2. This extension of the insulation beyond the edges of the surwlres ith th li k f which th chai is faces to which it is attached renders contact composed, and my invention relates in parof the metallioconnecting links impossible. ticular to an improved method of insulating From this brief description, it will be evisuch a chain supported fixture.

To the accomplishment of this and related ends, said invention, then, consists of the means hereinafter fully described and particularly pointed out in the claim.

The annexed drawing and the following description set forth in detail certain mechanism embodying the invention, such disclosed means constituting, however, but one of the various mechanical forms in which the principle of the invention may be used- In said annexed drawing: Figure 1 is an elevation of a fixture embodying my invention; Fig. 2 is aside elevation of one of the links of which the chain is com osed; Fig. 3 is a front elevation of a link; ig. 4 is a side elevation of. the top link of the se- To all whom it may concern:

Be it known that I, Fxnnnnox W. WAKE; FIELD, a citizen of the United States, and a resident of Vermilion, county of Erie, and State of Ohio, have invented a new and useful Improvement in Lighting-Fixtures, of which the following is a specification, the principle of the invention being herein explained and the best mode in which I have contemplated applying that principle, so as to distinguish it from other inventions.

My invention relates to lighting fixtures with which electricit is used as the lighting medium. It wil, of course, be under stood that in the use of electric fixtures it is necessary to provide some method of insulating the wires against any possibility of grounding, with the consequent injury to the fixture or the building in which it is installed. In electric fixtures in which a chain of the wires impossible. By making t e insulation a component part of the chain supporting the fixture proper an increased protection is obtained, and at the same time there is no sercifice of the ornamental appearance of the fixture. In the figures, the insulating material is shown as being disposed upon the surfaces of all of the links in the chain. It is preferable, how-- ever, that the insulation be installed merely between the two top links, or between the top link and the supporting hook; this limited insulation will be found sufficient and wholly efiective.

It is readily apparent that the 'insulation ries; Fig. 5 is a cross section of such tog d1spose d according to my invention, espelink attached to the pipe inclosing the fee cially 1f installed merely upon the upper wires; Fig. 6 illustrates a modified supportlinks, will be very inconspicuous, and will detract in no way from the apearance of the chain fixture. At the same time, the great reduction in expense is of much practical importance, for it is obvious that this method of installing the insulation will cost much less than when the insulation is inserted at one of the threaded joints, as is done in the prevailing method of insulating fixtures of this type.

Other modes 'of ap of my invention may ing member; and Fig. 7 is a section through two connecting links.

The fixture in general comprises a pipe A depending through the ceiling and ll'lClOS- an ornamental canopy a surrounding the pipe adiacent to the ceiling. Depending from t e pipe A is the with the arms attached thereto. This chain B is composed of a'series of simllar llnks b,-

these lin I a lying the rinciple s may be of any suitable orna-' ed e employ instead of the one explained, change being; made as regards the mechanism herein described, provided the means stated claim or the equivalent of such stated means be employed.

1 therefore particularly point out and distinctly claim as my invention As a nei' article. or": manufacture, ant support for an electric light fixture, includin a plurality of interengaging flattened Mile, and corresponding fiat sheets of insulating material bent to conform With the inner fates of said links, such sheets bea pending slightly wider than the inner faces of said links, and being suitably attached thereto, so as to extend beyond the edges of by the following the same, thereby preventing contact between said links when moved slightly relatively to each other While not preventing; such movement, such sheets being maintained in place it loosened in any one link by the adjacent link or links engaging such first link, the form of said links being designed to prevent any bendin strain being put 0 o 0 upon said links which would tend to loosen said sheets of insulating material therefrom.

Signed by me this 11th day of Sept. 1909.

FEEDER-E li W. WAKEFIELD.

Altested by \V. EARLn Cantos, M. E. LAWLESS.

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