US178733A - Improvement in chandeliers - Google Patents

Description

C. H. CARTER &. J. E. BROWNE.

CHANDELIERS.

Patented June13,"1a7e.

'No'.'w'msa f. @mi

N.FETERS, PHOT0LITHOGRAPHER. WASHINGYON, D C.

UETTED STATES CHARLES H. CARTER,

OF BROOKLYN, NEW YORK, AND JAMES E. BROWNE,

or NEWARK, NEW JERsEY.

IMPROVEMENT IN CHANDELIERS.

Specification forming part of Letters Patent No. 178,733, dated June 13, 1876;- application `filed April 2s, 1876.

T0 all whom it may concern Be itkuown that we, CHARLES H. CARTER, of Brooklyn, in the county of Kings and State fof New York, and JAMES E. BRowNn, of

so as to prevent it from beinglowered toojgsud-v denly, allas hereinafter particularly described. The accompanying drawing illustrates a inode of carrying o ut our invention, being avertical sectional view of an extension -'chan delier embodying our improvements.

A represents apendant, adapted for suspension from a ceiling, or a bracket or arm of any suitable description. This pendant supports and furnishes bearings for the working parts of the apparatus. It is here shown as of tubular form, in order to allow a rotary motion of the working parts when it is desired to turn the chandelier; but it may be of any suitable form otherwise than tubular whenv a rotary motion of the parts is not desired. Theinner surface of the pendant furnishes a bearing for the face or faces of one or more leverlike cams, B, carried by a rod, C, Working in a tube, D, which occupies a central position in the pendant, andwhich is capable of sliding or moving up and down therein, the said tube having attached to it the arms or branches H H of the chandelier. There may be any number of cams, B, but the two shown herein are deemed sufcient for illustration. The cams are pivoted by their inner ends to the upper end of the rod O, so that when at rest their outer ends have a tendency to drop of their own weight. But in order to keep them pressed outward, with their faces bearing against the inner surfaces of the pendant, I pro'- vide a spring attached to the carrying-rod C in such a manner as to exert a downward pressure tube D. A convenient operation of the rod, as the seats their faces or bearing-surfaces comeincontact with the bearingsurfaces ofthe pendant.

The spring may be of any suitable description, and be arranged in any suitable manner which will accomplish the desired purpose; but it is here shown as a spiral spring, E, arranged near the lower end of the rod C, and working between two seats, e e, one of which is attached to the rod, and the other to the This arrangement provides for the may be grasped by the thumb and nger, and the spring compressed between them, so as to enable the rod to be pushed upward to draw the cams toward each other, in order to allow the rod to be easily moved up or down without friction of the cams against the inner surface of the pendant. At .the upper end ofthe tube D is a cap, G, provided with a slot, g, in which the cams B work. The Lipper ends of the slots g form bearings for the upper edges ofthe cams, so as to prevent them from being forced outward too far, and also to assist in pressing them toward each other when the rod is pushed upward. e

The apparatus is provided with a spring or springs, arranged in any suitable manner, for taking the weight of the chandelier andvletting it down gently. There may be a spring,

J, arranged inside the pendant A and operating by compression, or a spring, J2, arranged outside said pendant and operating by expansion, or both of said springs may be used, arranged to operate with each other. When the spring J2 is used it may be covered by a tube working telescopically with relation to the pendant.

The extension -chandelier, constructed as above described, is operated as follows:

When it is desired to lower the chandelier, the rod C, which is simply a checking and releasing rod, is pushed upward with-- in the sliding tube D, and by that means is caused to withdraw the faces ot' the frictioncams from contact with the hearingsurfaces ot' the stationary pendant A. The tube D with the attached branches H H may be `then drawn down Vor allowed to descend easily. When the desired adjustment is obtained the pressure is removed from thel rod, soas toallow the spring E to pull downward on therod and cause the cams to swing outward and bear against the surfaces ot' the pendant with sufficient friction to arrest or check thc motion ot' the chandelier at any height to which it may be adjusted. 'The faces ot' the cams may be roughened or provided with teeth, in order to facilitate their engagement with the bearing-surfaces of the pendant. When it is desired to raise the chandelier, it is simply pushed upward until the desired height is reached, as the shape and arrangement ofthe cams allow them to easily slip over the bearing'snrface when moving upward, and as sopn" as `the upward pressure is removed, the cams swing outward and bind against the bearingsurfaces` of the pendant, so as to hold the chandelier in place.

Instead of' the cams operating by friction, l

as herein described, two or more pointed 1evers may be used, and the bearing-surfaces ot' the pendant may be `notchedor serrated to receivethe points of said,l levers, so` that the motion of the chandelier may be arrested or checked by the engagement of said levers with said notches or serrations. This invention is applicable to chandeliers for gas as well as to `those for oils, suitable packingbeing applied to prevent the leakage of gas.

W hat we claim as new, and desire to secure `by Letters Patent,1 is- 1. In an extension-chandelier, the combination of a stationary pendant, A, an inner sliding tube, l), carrying arms or branches H H,

'and a checkingand releasing rod, C, Working` inside of said tube, and a system of cams or

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