US1518768A - Electric-fixture hanger - Google Patents

Description

A. F. ANDERSON ET AL ELECTRIC FIXTURE HANGER Original Filed Aug. 10, 1922 es/BY Patented Dec. 9, 1924.

YUNHTED STATES PATENT OFFICE.

ALBERT F. ANDERSON AND CHARLES C. HAYES, 0F AUBURN, WASHINGTON.

ELECTRIC-FIXTURE HANGER.

Application filedAugust 10, 1922, Serial No. 580,933. Renewed. October 30, 1924.

To all whom it may concern:

Be it known that we, ALBERT F. ANDER- SON and crimes 0. HAYES, citizens of the United States, and residents of Auburn, in the county of King, State of Washington, have invented certain new and useful Tmprovements in Electric-Fixture Hangers, of which the following is a specification.

This invention relates to devices for securing electric light and similar fixtures to the ceiling of a room. The objects of our invention are :to provide a strong, neat and effective means for hanging the fixture; to facilitate the operation of hanging the fixture; and to enable the electric wires of the fixture to be soldered to those from the ceiling conduit with greatest convenience.

We attain these and other objects by the devices and arrangements illustrated in the accompanying drawings, in which Fig. 1 is a section of our invention in use, parts being shown in elevation;

Fig. 2 is a side elevation of the hanger rod;

Fig. 8 is a similar view of the hanger nut;

Figs. 4 and 5 are plan and elevation, respectively, of the fixture link; and

Fig. 6 is a View illustrating the method of attaching a fixture in place.

Similar numerals of reference refer to similar parts throughout the several views.

Electric fixtures are usually provided with a crows-foot, secured to the wall or ceiling, into which the hanger pipe is screwed; a fixture pipe surrounds and is screwed to the hanger pipe and extends be low the canopy; and a canopy which is secured to the fixture pipe by a set-screw and which can be slid down the fixture pipe when it is desired to get at the wire connections. The fixture wires pass through the fixture pipe and the hanger pipe and out therefrom at the crows-foot and are attached to the wires from the wall or ceil ing conduit by first lowering the canopy on the fixture pipe and then making and soldering the connections. Since it is necessary that the fixture pipe be very slightly longer than the canopy it is evident that the space thus provided for making the connections and for handling the soldering apparatus is very limited. The weight of the fixture is carried by the crows-foot and the hanger pipe through the screw connection between it and the fixture pipe, but

this construction makes it necessary for the entire fixture to be turned when the fixture pipe is screwed onto the hanger pipe. The result is that the wires on the fixture inevitably become twisted within the hanger ipe.

Vi e have changed the relation of the parts so that it is no longer necessary to turn the fixture when it is fastened to the hanger pipe, and the fixture wires may be fastened to the conduit wires while the entire fixture is removed from the hanger pipe, thus permitting abundant room for making the wire connections and for operating the soldering apparatus.

Referring to the drawings :-The crowsfoot 1 is fastened to the wall or ceiling in the usual way and carries a hanger rod 2 screwed into it. This rod 2 is screw-threaded at its free end. The fixture link 3 is provided with a boss 4, to which the canopy 5 is secured, and this boss 4 has a central hole in which the short fibre pipe 6 fits, and it also has two grooves 7 which form wire channels outside the insulating pipe 6. These channeis pass entirely through the boss 4 from top to bottom thereof. The pipe 6 is adapted to receive the lower end of the rod 2. The canopy 5 is shaped so as to completely surround the hanger rod, except that a short length thereof extends below the link 3. The lower end of the boss 4 of the link 3 is flat to form a bearing surface which engages the supporting nut 8. This nut 8 screws on the protruding end of the rod 2 below thelink 3 and holds the fixture and the canopy up in place. The canopy 5 may be secured to the link 3 by soldering it thereto, or in any other desired manner, or it may be left loose thereon.

The fixture wires 9 and 10 pass up from the fixture through the grooves 7, outside of the insulating pipe 6, and thus into the interior of the canopy 5. They should be long enough so that they can be soldered to the conduit wires 11 and 12 before the fixture is attached to the hanger rod. Then, when these connections have been completed, the fixture is raised and the wires 9 and 10 are folded in the canopy, and the free end of the hanger rod 2 is passed through the pipe 6 and extends below the boss 4 of the link 3. Then the supporting nut 8 is screwed on the end of the rod 2 and the whole fixture is completed.

Having described our invention, What we claim is': I

In an electric fixture hanger, the combination of an upper metallic link to which the fixture is attached, said link being provided with a central hole passing vertically through its upper side and With a channel communicating with said hole and parallel thereto; an insulating tube fitting said hole in said link and closing the connection be tween the hole and the channel; a fixed supporting rod adapted to pass down tl'irough said insulating tube and screwthreaded at itsend; a nut adapted to screw on the end of said supporting rod and having a bearing surface greater than the diameter of said insulating tube whereby it engages the upper part of the inner surface of said link to support the link and fixture; a canopy surrounding said supporting rod and supported by said link; short electric conduit Wires positioned adjacent the fixed rod; and electric fixture Wires passing from the fixture and through said channel in the link and connected to said conduit 25 Wires in the space Within the canopy. j ALBERT F. ANDERSON;

CHARLES C. HAYES.

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