US1084813A - Chain-support. - Google Patents

Description

Y W. H. MURRAY.

CHAIN SUPPORT.

APPLICATION FILED DEO.17, 1912 1 ,O84,81 3. Patented Jan. 20, 1914.

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WILLIAM H. MURRAY, OF HARRISON, NEW YORK.

CHAIN-SUPPORT.

Specification of Letters Patent.

*atented Jan. 20, 191 1.

Application filed December 17, 1912. Serial No. 737,316.

To all whom it may concern Be it known that I, \VILLIAM H. Mummy, a citizen of the United States, residing at Harrison, in the county of Nestchester and State of New York, have invented certain new and useful Improvements in Chain- Supports, of which the following is a specification.

This invention relates to improvements in chain supports for electric pull sockets, and has for its objects to provide a device which will be of extremely simple construction, cheap to manufacture, easy to position upon a socket, and which may be formed from a single length of spring wire.

A more specific object of the invention resides in the provision of a chain support formed from a single piece of spring wire, suitably bent for engagement with a socket, to hold a chain and to provide means for returning the free end of the support to its normal raised position.

\Vith these and other objects in view as will become more apparent as the description proceeds, the invention consists in certain novel features of construction, oombination, and arrangement of parts, as will be hereinafter fully described and claimed.

For a complete understanding of my invention, reference is to be had to the following description and accompanying drawings, in which,

Figure 1 is a side elevation showing my invention applied to a lamp socket, and, Fig. 2 is a perspective view of my invention.

My improved chain support formed from a single length of spring wire and comprises the arm 1 doubly curved at its free end to form the hook portions 2 and 3. The wire is extended angularly, as at 1 from the inner end of the arm 1, bent to form a plurality of coils 5, then extended inwardly, as at G, looped, as at 7, and finally extended upwardly, as at 8, and bent back upon itself, as at 9, to provide a catch, whereby the loop may be closed and clamped around the lamp socket 18. It will be noted that the portion 8 is doubly curved so as to retain a looking engagement with the portion 6 and at the same time be easily disengaged by a suitable pressure. The device is positioned, as shown in Fi 1, and the chain 11 may be clamped either in the hooks 2 or A flexible member 12 is secured at its upper end to the book 3 and carries upon its lower end a ring 13.

The doubly curved end of the arm 1 is particularly adapted to hold the common type of pull chain 11, which is now used almost universally. This chain comprises a plurality of beads 14; threaded upon a wire and it will be readily appreciated that any portion of the chain. may be quickly connected with the arm 1 by simply slipping either the hooks 2 or 3 between two of the beads 14:. lVhen the flexible conncctimi 12 is pulled the free end of the arm 1 will doscend and switch the light on or oil by pulling upon the chain ll. lVhcn the tension is released from the flexible connection 12, the coils 5 return the free end oil? thi arm to its raised position, thus relieving the spring within the lamp socket from all unnecessary work, such as would be caused by lifting the arm 1 and the free end portion of the chain 11. This feature of my invention, I con sider of primary importance.

It will be seen that T have PltWltlCtl a very simple spring chain support, which may be very quickly clamped upon a socket or removed therefrom, which is so formed as to automatically return to its raised position, thereby relieving the chain support of all unnecessary strain, and which may be actuated by a downward pull in any direction.

It is to be understood that while I have shown and described the preferred embodiment of my invention, 1 do not wish to be limited to this exact construction, combination, and arrangement of parts, but may make such changes as will tall within the spirit and scope of the invention.

Having thus described my invention,what I claim is 1. The combination with an electric lamp pull socket ot' a detachable chain support, said support being :t'ormed ot a single length of wire and including a body portion, a loop formed at one terminal of said body portion and adapted for encircling engagement with the lamp socket, a hook member formed on the extreme terminal of said loop port-ion and adapted to engage said body portion for holding the said loop in gripping relation to the lamp socket, a spring coil element formed intermediate the length of said body portion and a substantially S- shaped hook member formed on the free terminal of said body member, said hook memher being adapted to receive the pull chain 01 the lamp socket, and a flexible element attached to said S-shaped hook member for operating said pull chain.

2. The comblnation With an electric lamp pull socket, of a chain support formed of a single length of metal, and including a body portion, a spring coil formed therein, a terminal loop carried by said spring coil and adapted for encircling engagement with a lamp socket, a hook member formed on the extreme terminal of said loop portion and adapted for engagement With the base portion of said member, an S-shaped hook member formed terminally of the said body member, said S-shaped hook member being adapted to grippingly receive the pull chain of the lamp socket, and a flexible element having its upper terminal attached to said s-shaped hook member.

In testimony whereof I aflix my signature in presence of tWo Witnesses.

WILLIAM H. MURRAY. Vitnesses:

FRED Mrssnn, FREDERICK M. C. Orrrz.

Copies of this patent may be obtained for five cents each, by addressing the Commissioner of Patents, Washington, D. G.

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