US748718A - Extension lamp-hanger - Google Patents

Description

PATENTED JAN. 5, 1904.- t

P. H. GEISLER. EXTENSION LAMP HANGER.

AP-PLIUATION FILED 0013 5. 1903.

R0 MODEL.

,2 mi 3 a y i w Ww H 6 y Aiiorn UNITED STATES I Patented January 5, 1904.

PATENT OFFICE.

FERNANDO H. GEISLER, or DAYTON, 01110, ASSIGNOR 0F ONE-HALF TO H. E. SNYDER, or DAYTON, OHIO.

EXTENSION LAM P-HANGER.

SPECIFICATION forming part of Letters I'atent No. 748,718, dated January 5, 1904.

Application filed October 5, 1903.

To aZZ whom it may concern.-

Be it known that I, FERNANDO H. GEISLER, a citizen of the United States, residing at Dayton, in the county of Montgomery and State of Ohio, have invented certain new and useful Improvements in Extension Lamp-Hangers; and I do declare the following to bea fu-ll, clear, and exact description of the invention, such as will enable others skilled in the art to which it appertains to make and use the same, reference being had to the accompanying drawings, and to the figures of reference i marked thereon, which form a part of this specification.

This invention relates to improvements in suspension-supports for lamps.

The object of the invention is to provide a simple and convenient lamp-hanger'that may 1 be turned in any direction from a straightor perpendicular line to any desired angle between such perpendicular line and a line substantially at right angles to such perpendicular line. i

In a more detailed description of the invention reference is made to. the accompanying drawings, of which- Figure 1 is a longitudinal elevation of my improved lamp-hanger, a portion of which is shown in section anda part of which is broken away. Fig. 2 is an enlarged sectional view of the brush-holder. Fig. 3 is a'transverse sectional view on the line com of Fig. 2. Fig. 4 is an enlarged elevation of the suspensiontube, parts of which are broken away. Fig.

'5 is a cross-section on the line y y of Fig. 4.

Fig. 6 is an elevation of the universal or ball joint.

In a detail description of the invention similar reference characters indicate corresponding parts.

1 and 2 designate, respectively, upper and lower semispherical shells, which form a balland-socket joint and which have a screwthreaded connection at 3 and the interiors of which are lined with a soft-rubber lining 4 to provide 'a'snitable friction for the engagernent of the inner-sphere or globe. The said inner globe "or'sphere consists of two similar sections 5 and 6, which are discon- Serial No. 175,759. on model.)

nected with each other. One of these globes to wit, the inner onefits in the other and is adapted to be moved ,in arcs to various positions, the frictional lining 4 serving to maintain said inner globe in such position when so moved. The lower part 2 of the outer globe has a suitable'space 8 in its lower side to permit of the movements of the inner globe, and therewith the lamp-hanger. The upper section 1 of said outer globe is provided with flanges 10, by means of which it is secured to an ordinary porcelain wire-support 11, the latter being attachable in the usual manner to the ceiling. The upper section 5 of the inner globe is provided with a downwardlyprojecting tube 12, which is screwthreaded onits interior-for engagement with a tube 13, which projects downwardly through the lower portion 6 of said-inner globe and is connected with a' metallic block 14. The lower portion 6 of the inner globe is loosely 7o inclosed between flanges 9, which project laterally from-said tube 13. The said lower portion of said globe must be loose at that point. The block 14 has a rigid attachment with the tube 13, and to this block is also rigidly attached the upper end of the outer metallic casing 15, the said outer casing being the lam p-suspension tube or hanger, from the lower end of which the lamp 16 is suspended. 1

17 and 18 designate the wire conductors, extending downwardly from thesource'of electrical supply through tubes 12 and 13 and through the block 14; The lower terminals of these wires are connected to metallic strips 19, which form conductorsthrough the lower portion of the hanger.

20 designates an innerlining of non-conducting material. Between this non-cond ucting material and the outer metallic casing 15 the conductors 17 and 18 pass, said conductors being wrapped in suitable insulated material. The conductors 19 are supported on the interior of the casing 20 and extend to the lower extremity of the hanger or outer 5 casing 15.

21 designates brushes arranged upon the opposite sides of the brush-holder or slide 22.

lamp. A suitable portion of the hanger or outer casing 15 is provided with a longitudinal slot 24, one edge of which has a series, of ratchet-teeth or notches 25, which engage with a ratchet-pawl 26 to hold the brushholder 22 in the desired lower position whenever it becomes necessary to lower the lamp This ratchet-pawl 26 is fixed to a shaft. 27, which is loosely journaled in the sides of the brush-holder 22. The position of the said pawl 26 is such as enables it to readily engage with ratchets or notches 25 when given over to the influence ofthe spring 28,

which will be again referred to. The periphery of said pawl is provided with a groove 29, which receives the opposite edges of the slot 24 when the pawl is in position, as shown in Fig. 4:. The spring 28, as will be seen in' Fig. 2, controls the shaft 27, and thereby the ratchet-pawl 26 is maintained in a position to engage with the notches 25 in lowering the position of the lamp 16. When pulling upon said lamp, it will be understood that the spring 23 expands and the pawl 26 rides freely down the inclined surfaces 25 of the notches 25 and when the lamp is released the spring 23 exerting an eifect to draw the brush-holder 22 upwardly, thereby causing the pawl 26 to engage the next upper adja-Z cent notch.

In order to control the ratchet-pawl 26 and prevent it from engaging the notches, and" thereby permit the lamp to be drawn upwardly in the holder to its upper limit, as

shown in Fig.1, the cord 30, having a handle 31, is utilized. This cord has its upper end attached to a pin 32, projecting from the shaft 27. When draft is exerted on said cord by pulling the handle 31 downwardly, the

spring 28 is pulled against, and the ratchetpawl 26 is kept out of engagement as long as the draft is maintained upon said cord. Thus it will be seen that the spring 23 will be un-' restricted in its compression and will draw the brush-holder 22 to its upper limit, and therewith the lamp 16, as before stated. The

lateral positions of the hanger are obtained, as indicated in dotted lines, Fig. 1, by moving the hanger to the desired position against the frictional engagement of the two balls. When moved to such position, the friction is 'suflicient to so maintain the hanger.

Having described my invention, I claim- 1. A suspension lamp-holder, comprising inner and outer sectional globes, a tube suspended from the upper section of the inner globe, a tubular hanger connected with said suspended tube, said hanger being adapted to be shifted to various positions out of a perpendicular position, and to be held in such positions by the friction between the two globes or balls, suitable insulation on the interior of said tubular hanger, abrush-holder on the interior of said hanger, brushes upon said holder with which the circuit-conductors are connected, a coil-spring inclosed between a the upper end of the hanger and said brushholder, and ratchet devices adapted to lock said brush-holder in various positions in low- I ering the lamp, substantially as set forth.

2. In a suspension lamp-holder, a ball-andsocket joint consisting of inner and outer sectional globes, aperpendicular tube suspended from the upper section of the inner globe, a tubular hanger connected thereto, electrical conductors passing through said hanger, a sliding brush-holder, a coil-spring normally controlling the position of said brush-holder, and ratchet devices adapted to maintain said brush-holder in various positions against the influence of said coil-spring, substantially as set forth.

3. In a suspension lamp-holder, a ball-andsocket joint, consisting of inner and outer globular sections, the upper section of the inner ball having suspended therefrom a sectional tube, a lamp-hanger supported upon said sectional tube, a brush-holder within said hanger, a lamp suspended from said brushholder, a coil-spring normally controlling the position of said brush-holder, and ratchet devices adapted to lock said brush-holder in various positions in lowering the position of the lamp, substantially as set forth.

4:. In a suspension lamp-holder, a ball-andsocket joint, the same consisting of inner and outer sectional globes, the upper section of the inner globe having suspended from it a tube, the said tube passing through and secured to the lower section of said inner globe a lamp-hanger supported upon said tube, a sliding brush-holder within said lam p-hanger, a lamp suspended from said brush-holder, a spring exerting its influence to elevate said brush holder and therewith the lamp, a ratchet pawl supported upon said brushholder, said ratchet-pawl being adapted to engage with the adjacent edge of the lamphanger to maintain the brush holder and therewith the lamp in suitable positions, substantially as set forth.

5. In a suspension lamp-holder, a ball-andsocket joint consisting of inner and outer sectional globes, a frictional surface interposed between said inner and outer globes, a tube suspended from the upper section of the inner globe, a lamp-hanger supported upon said tube, a brush-holder within said suspensiontube, a lamp suspended from said brushholder, wire connections by which said lamp is suspended from said brush-holder, ratchet uppermost positions, substantially as I set devices controlling the position of the brushforth. :o holder, 2. spring controlling the position of In testimony whereof I aflix my signature the brush-holder when relieved from the conin presence of two witnesses.

5 trol of the ratchet devices, and means for FERNANDO H. GEISLER.

maintaining a, disconnection of the ratchet Witnesses: V 7 devices in permitting the said spring to ele- R. J. MGGARTY,

vvnte the brush-holder and the lamp to their CAROLYN M. THEOBALD.

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