US538095A

US538095A - Lamp-hanger

Info

Publication number: US538095A
Authority: US
Publication date: 1895-04-23
Anticipated expiration: 1912-04-23

Description

{'N-o* Mod'el.) D. AITGHISON.

LAMP HANGER. Y No. 538.095. Patented Apr.'23, 1895,

/NVENTOH 4 drawings, forming a part of this specification,

f STATES "PATENTJ rrIcE..

l DAVID AIToHIsoN, or EASTON, PENNSYLVANIA.

LAIVI P-HUANGER.

SPIE(.ilIFICAlIONv forming part of Letters Patent No. 538,095, dated April 23,1895.

Applcatoniled May 31, 1894.

To all whom it may concern.-

Be it known that I,A DAVID ArroHrsoN, of Easton, in the county of Northampton and State of Pennsylvania, have invented a new and Improved Lamp-Hanger, of which the following is a full, clear, and exact description.

|The object of the invention is to provide a new and improved lamp hanger, which is simple and durable in construction, more especially designed for supporting incandescent electric lamps, and arranged to permit of conveniently raising or lowering the lamp, or moving it sidewise to the desired position.

The invention consists in certain parts and details, and combinations of the same, as will be hereinafter fully described and then pointed out in the claims.

Reference is to be had to the accompanying in which similar letters of reference indicate corresponding partsin all the views.

Figure l is a side elevation of the improvement as applied. Fig. 2 is a plan View of the same', with the pivot for the rod in section. Fig. 3 is an enlarged transverse section of the same, on the line 3 3 of Fig. 1; and Fig. lis asectional side elevation'of the improvement, on the line 4-4 of Fig. 2.

The improved lamp hanger is provided with a square arm A, extending horizontally, and held at one end on a vertically disposed pivot B, secured to a ceiling C or other support. On this arm A is held to slide a spring actuated drum D, on which winds a cord or rope E, having one end extending downward to support a lamp F, supplied by a wire F leading from the insulator F2 attached to the ceiling C.

The drum D is provided with an exterior shell D', on the peripheral surface of which the cord E winds, and this shell D' has attached at one end a spring D2 coiled within the shell D', and fastened with its outer end on a flange D3 of a sleeve D4 arranged within the shell D', and fitted to slide longitudinally on the arm A. The shell D' is mounted to rotate at one end on the annular llange D3, and its other end is mounted to turn on the exterior surface of the sleeve D4, as will be' readily understood by reference to Fig. 4. On the face of the annular flange D3 of the sleeve D4 is pivoted the pawl D5, see Fig. 3, adapted Serial No. 513,024. (No model.)

to engage one of a series of apertures D6 formed in the shell D' at its open end, as indicated in the said Fig. 3. Now, it will be seen, that when the operator pulls on the lamp F, the cord E unwinds from the shell D', and consequently rotates the latter in thedirection of the arrow a', see Fig. 3, so that the shell D' winds up the spring D2, and when the lamp F has been lowered to the desired position, and the operator releases the pull on thelamp, then the pawl D5 engages one of the apertures D6, to lock the shell D and the wound-up spring in place on the sleeve D4, which latter is prevented from rotating on account of being fitted on the square arm A. When it is desired to raise the lamp F, the operator slightly pulls the lamp downward so as to disengage the pawl D5 from the corresponding aperture D6, and then releasing the lamp F suddenly, the spring D2 will rotate the shell D' to wind up the cord E, it being understood that the rapid revolving of the shell D' prevents the pawl D5 from engaging one of the apertures D6 until the speedof the said shell slackens.

The downwardly-extending part ofthe cord E passes through a guide G, attached at one end to the sleeve D4, and at its other end fitted loosely on the arm A. -The guide G is formed with a longitudinal slot and extends throughout the length of the shell D', as plainly illustrated in the drawings. The outer end of the guide G serves to close the open end of the shell D', and is also formed with a loop G' engaged loosely by a segmental arm H provided at its outer end with a downwardly extending shaft H', mounted to turn in the outer end of the arm A. On thelower end of the shaft H' is formed a crank arm H2 under the control of the operator, to permit the latter to turn the said shaft H to swing the segmental rod H to move the spring-actuated drum D longitudinally on the arm A. Thus by the, arrangement described, the lamp can be raised or lowered at will as desired and can be moved sidewise to the desired positicn, by the operator turning the crank arm H2.

Having thus described my invention, I claim as new and desire to secure by Letters Patentp 1. A lamp hanger, comprising a horizontal arm, a drum tted to slide on said arm and IOO carrying a cord for supporting a lamp, and means for adjusting the drum on the arm, substantially as described.

2. A lamp hanger, comprising an arm mounted to swing horizontally,a spring-actuated drum held to slide on the said arm and carrying a cord for supporting a lamp, and means for imparting a sliding motion to the said drum on the said arm, substantially as shown and described.

3. A lamp hanger, comprising an arm mounted to swing, a spring-actuated drum held to slide on the said arm, a guide moving with the said drum and adapted to guide the lamp-supporting cord winding on the said drum, a segmental erm engaging a loop on the said drum, and a shaft having a crank and journaled in the said arm and carrying the said segmental arm, substantiallyas shown and described.

4. In a lamp hanger, the combination with a pivoted arm, of a shaft journaled in lche free end of the said arm and carrying a crank and a segmental arm, and a spring-actuated drum mounted to slide on the pivoted arm and engaged by the said segmental arm, substantially as shown and described.

DAVID AlTCIIISON.