US1278177A - Extensible support. - Google Patents

Description

E. E. LINEHAN. EXTENSIBLE SUPPORT.

APPLICATION FILED NOV-12,1917.

Patented Sept. 10, 1918.

UNITED STATES PATENT cares. I

-EDWARD E. LINEHAN, OF ST. PAUL, MINNESOTA.

' a EXTENSIBLE SUPPORT. Y q

Specification of Iietters Patent. Patented Sept, 10, 1918,

Application filed November 12, 1917. Serial No. 201,650.

To all whom it may concern:

Be it known that I, EDWARD E. LINEHAN, a citizen of the United States, residing at St. Paul, in the county of Ramsey and State of Minnesota, have invented a new and useful Improvement in Extensible Supports, of which the following is a specification.

' This invention relates to improvements in extensible supports, the primary object being to provide a simple and inexpensive extensiblesupport for holding fans, tools and other articles, so that they may be moved and held freely or supported out of the way when not in use. Devices of this general character in which the slack of a cord has been taken up automatically when the object to which the cord is connected ismoved out of the way have been produced and used before, and my invention relates more specifically to a novel structure, which is strong and durable and yet light in weight and by which a maximum length of cord is taken up automatically, thus permitting a wider range in which the article held can be used.

My invention further is designed to accomplish these results in a manner which protects and reduces wear of the cord. With these and other objects in view, my invention comprises the features of construction, and combination of parts hereinafter more particularly described and claimed.

In the accompanying drawing forming part of this specification, Figure 1 is a side elevation of my invention, and Figs. 2 and 3 are respectively a side elevation and a plan of the stationary sheave block.

In the drawing,let A indicate a ceiling fixture by which my improved device can be secured to the ceiling or wall. This ceiling fixture is provided with a long rod B,

. depending therefrom having a threaded lower end 2 on which is secured by threaded connection, a stationary eyelet support C having an eyelet 3 held laterally from the rod B and a display support 4 for holding a suitable display 5 for advertising or instructive purposes. Arranged near the upper portion'of the rod is a stationary sheave block D, which is secured to said rod at selective elevation thereon by the set screw 6. This stationary sheave block contains a sheave pulley 7 journaled by the pin or shaft 8 in a suitable vertical opening 9.

Freely movable up and down upon the rod B is a movable sheave support E formed with an eyelet 10, the eyelet passage of knotted end 18 through a passage 19 to the stationary sheave support and passes downwardly around the sheave pulley 12, then upwardly around the sheave pulley '7, and finally freely through the eyelets 10 and 3, the lower end of saidcord being secured to the fan F or any other device desired. Thus the fan can be moved freely about within a wide range according to the length of the cord and the distance between the sheave pulley supports on the rod B.

IVhen the fan is pulled downwardly the cord travels freely around the sheave pulleys and raises the sheave pulley support E on the rod and when said fan is raised the sheave pulley support E automatically lowers and takes up the slack of the cord. When the fan is released the weight of the movable sheave pulley support supports the fan permanently out of the way- The and give when the fan is pulled laterally, but immediately assumes vertical position when the fan is released. This flexibility of the rod prevents breaking of the rod when the cord is pulled suddenly and violently and reduces sudden strain on the ceilin support. Any number of pulleys may be employed in the sheave supports and the length of slack thus regulated.

In accordance with the patent statutes, I have described the principles of operation of my invention, together with the apparatus which I now consider to represent the best embodiment thereof, but I desire to have it understood that the construction shown is only illustrative, and that the invention can be carried out by other means and applied to uses other than those above set forth within the scope of the following claims.

Having described my invention what I claim as new and desire to protect by Letters Patent is 1. An extensible support, comprising, in combination, a ceiling fixture having a flexirod B is preferably flexible, so as to bend ble rod depending therefrom, a stationary sheave block changeably secured to the upper portion of said rod at selective elevation, said block holding a loose pulley, a movable sheave block slidably disposed on said rod below said stationary sheave block and having a loose pulley and an eyelet laterally distanced from the side of said. rod, a support on the lower end of said rod also having an eyelet laterally distanced from the side of said rod, a flexible cord secured to said upper sheave block and traveling around said pulleys and downwardly through said eyelets, and an article to be supported secured to the lower free end of said cord, said lower sheave block serving as a movable counterweight tending to support said article when the cord is restricted upon the rod, but permitting the free end of the cord to be extended and the article moved away from the rod.

2. An extensible support, comprising, in combination, a ceiling fixture having a flexible rod depending therefrom, a stationary sheave block changeably secured to the upper portion of said rod at selective elevation, said block holding a loose pulley, a movable sheave block slidably disposed on said rod below said movable sheave block and having a loose pulley and an eyelet laterally distanced from the side of said rod, a support on the lower end of said rod having an eyelet laterally distanced from the side of said rod, a flexible cord secured to said upper sheave block and traveling around said pulleys and downwardly through said eyelets and an article to be supported secured to the lower free end of said cord, said lower sheave block serving as a movable counterweight tending to support said article when the cord is retracted upon the rod, but permitting the free end of the cord to be extended and the article moved away from the rod and said lower sheave block and eyelet support having means for holding displays.

In testimony whereof, I have signed my name to this specification.

EDl VARD E. LINEHAN.

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

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