US116224A

US116224A - Improvement in lamp-supporters

Info

Publication number: US116224A
Authority: US
Publication date: 1871-06-20
Anticipated expiration: 1888-06-20

Description

10.116124; Patent edlune 20,187};

UNITED STATES EDWIN RUSSELL AND FRANCIS W. PLATT, OF WATERBURY, CONNECTICUT.

IMPROVEMENT lN LAMP-SUPPORTERS.

Specification forming part of Letters Patent No. 116,224, dated June 20, 1871.-

To all whom it may concern:

Be it known that we, EDWIN RUssELL and FRANCIS WV. PLATT, of Waterbury, in the county of New Haven and in the State of Connecticut, have invented certain new and useful Improvements in Lam p-Supporter or Bracket; and do hereby declare that the following is a full, clear, and exact description thereof, reference being had to the accompanying drawin g and to the letters of reference marked thereon making a part of this specification.

The nature of our invention consists in the construction and arrangement of an extension bracket or support for lamps, as will be hereinafter more fully set forth.

In order to enable others skilled in the art to which our invention appertains to make and use the same, we will now proceed to describe its construction and operation, referring to the annexed drawing, which represents a side view, part in section, of our bracket-or support.

A, A A and A represent four tubes of about the same length, but of diflerent diameter, so that they can be shut up on the telescopic plan. The upper largest tube Ais provided at its upper end with a screw-cap, B, with a screw, C, pointing upward to be inserted in the ceiling. From the center of the cap B a square pin, D, projects downward into the tube A, for a purpose that will be pres ently described. Surrounding the upper end of the tube A is an ornamental collar, E, or other device, to hide the joint between the ceiling and the bracket. second tube A is sawed lengthwise about an inch from the end, and stamped large enough to fill the tube A. It is made to impinge against the sides of the larger tube A with sufficieut force to hold lamps of different weights by means of a tapering screw, a, which can be adjusted to any weight of lamp desired. A collar, b, is then. screwed on the lower end of the tube A, holding the tube A in its place and allowing it to be readily taken apart when necessary. In precisely the same manner the tube A is attached to the tube A, and as many more tubes as may be desired may be attached The upper end of the lowest tube are secured arms G G, with cupshaped holders H H to receive the lamps. The

screws a a in the upper ends of the tubes A A are adjusted by shutting the tubes together and turning the one that needs tightening that is, turning the tube that needs tightening, all the screws being held by the pin D entering a hole made for that purpose in each screw. The tubes, which are slotted at their upper ends, maybe made to impinge against the sides of the next larger tubes by a metal spring or elastic rubber spring, as well as by a tapering plug with screw-thread, as above set forth.

Having thus fully described our invention,

' what we claim as new, and desire to secure by Letters Patent, is-

1. A series of tubes closing within each other on the telescopic plan, when said tubes have their upper ends slotted and spread so as to impinge against the inside of the next larger tubes, the force being maintained substantially by the means and for the purposes herein set forth.

2. In combination with a series of tubes, constructed and arranged as herein described, the collars b b screwed on the lower ends of the tubes to hold the next smaller one in its place,

and described, and for the purposes herein set forth.

In testimony that we claim the foregoing we have hereunto set our hands this 8th day of May, 1871.

EDWIN RUSSELL. I FRAN 01S W. PLATT.

Witnesses:

NELSON A. WELToN, FRANKLIN L. WELTON.