US394153A

US394153A - Lam p-hanger

Info

Publication number: US394153A
Authority: US
Publication date: 1888-12-11
Anticipated expiration: 1905-12-11

Description

(No Model.)

D. GHISHOLM.

LAMP HANGER.

No. 394,153. Patented Dec. 11, 1-888.

W'ITNE IN ENTOR.

N PETERS. PlmwLiuw m r-cn Wadfinglun. D. C.

UNTTE STATES PATENT OFFICE.

DANIEL CIIISHOLM, OF UTICA, NEIV YORK.

LAM P-HANG ER.

PECIFICATION forming part of Letters Patent No. 394,153, dated December 11. 1888.

Application filed January 26, 1888. Serial No. 261,944. (No model.)

To (l/ZZ whom it may concern:

Be it known that I, DANIEL (HIsHoLrL of Utioa, in the county of Oneida and State of New York, have invented certain new and useful Improvements in Lamp-Hangers3 and I do hereby declare that the following is a full, clear, and exact description of the invention, which 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 letters of reference marked thereon, which form part of this specification.

My invention relates to an improvement in lamp-hangers, and more particularly to that class of hangers desigrued to be used with electric lights, although it is equally applicable to the use of any other system of lightin Figure 1 represents a side elevation of my improved lamp-hanger, the dotted lines indicating the position into which the same may be moved to enable the operator to adj ust: the lamp, the full lines representing its normal position. Fig. 2 represents a top view of Fig. 1, the mast being shown in section. Fig. 3 represents a section of the outer end of the swinging arm and an end view of the head. Fig. 4 shows the bolt and connected parts for straining the guy of the truss. Fig. shows a frame used in the truss forming the arm. Fig. shows a modified form of construction of the outer end of the hanger-arm.

Similar figures of reference indicate like parts in the several figures of the drawings.

In the drawings] represents amast orsupport usually employed in electric-light service. Although this is shown, it is quite obvious that my device can be applied to any suitable means of snpportsnch as the wall of a building or othersimilar structure which may be used as a support-and for convenience I term the same a mast, on which hangers 2 2,11igs. 1 and 2, are supported. In the hangers 2 2 I mount a 'ertically-swinging arm, 3, mounted in bearings 4 4 in hangers, in such manner as to allow the vertical movement of the arm in the are of a semicircle. Pivotal bar rests in the bearings with collars t; (3 t; (i, which are longitinlinally adjust;- ablc on the bar to allow the changing of the arm or hangers, the collars being adjustable by the ordinary set-screw. In const rueting arm 23 it is desirable to have a light arm so constructed as not to be swayed or moved by the wind. To accomplish this I provide a frame, 7, forming a part of the arm and act ing somewhat as a couliter-weight to the free or outer end of the arm, and in the drawings the same is U-shaped, and is secured to pivotal bar 5 and the truss-work portion, consisting of head 8, to which are attached rods 9 9 fl .0, Figs. 1 and E3, the rods passing through truss-frames 10, Figs. 1, 2, and 5, and connect with frame 7 and pivotal bar 5, respectively, as illustrated in the drawings. I provide guy or tightening rod 11, one end connected with head 8 and the opposite end with frame 7, so as to be tightened by nut 12, Fig. 4. Rods 9 SJ 9 f) are secured at their extremities by set-screws I3 13 .l 13. I provide screweyes It ll, which are inserted in cross-arm 15, passing through the head and formed of a material that is a non-conductor of electricity, thereby dispensin with the necessity of having the same insulated for attachingthelamp thereto.

For operating the swinging arm I preferably provide cable 16, Fig. 1, attached to the weighted end of the frame 7 and passing through screw-eyes l 7 17, Fig. I, so as to bein reaching distance of the operator. By letting up on the cable the free end of the swinging arm, with the lamp thereto attached, drops down into the position shown in dotted lines in Fig. l, and may be moved bacluvard into the position shown in full lines in the same figure, and, if desired, the free end of the arm may be moved into a vertical or any intermediate position, the same moving in the arc of a semicirclea point of great practical utility in furnishing a ready means of adjusting the height of the lamp.

\Vhat I claim as new, and desire to secure by Letters Patent, is

l. A vertically-swinging hanger-arm having at its inner end a rigid weighted frame, a pivotal bar secured to the frame substantially at right angles to the plane of the. frame, rods proj ectin g from the frame and pivotal bar, a head-piece upon the outer end of the projecting rod, the truss-frames, and straining-guy between the head and frame, in combination with hangers engaging the pivotal bar and se-. curing it to a support outside of the arc of a circle described by the inner end of the arm. 2. The combination of a vertically-swinging arm for supporting an electric light, pivoted in hangers out of the vertical line of support, the inner weighted end passing between the vertical line of support and the pivotal point, the head on the outer end of the arm, and the non conducting cross arm passing through the head on the outer end of the swinging arm provided with eye, substantially as set forth. i

1 3. The combination, in a pivoted hangerarm, of the rigid weighted frame, the pivotal bar secured to the frame, rods projecting from the frame and pivotal bar, the head-piece upon the outer end of the projecting rods, the truss-frames, and the straining-guy between the head and the frame.

guy, the non-conducting cross-bar in the head, and the supporting-eyes, substantially as set forth, for the purposes stated.

In witness whereof I have afixed my signature in presence of two witnesses.

DANIEL CHISHOLM.

\Vitn esses:

EDWIN H. RIsLEY, D. MoGUoKEN.