US451832A

US451832A - Foster milliken

Info

Publication number: US451832A
Authority: US
Publication date: 1891-05-05
Anticipated expiration: 1908-05-05

Description

(No Model.)

F. MILLIKEN. ELECTRIC RAILWAY POLE.

No. 451,832. Patented May 5, 1891.

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FOSTER MILLIKEN, OF NEW YORK, N. Y.

ELECTRlC-RAI LWAY POLE.

SPECIFICATION forming part of Letters Patent No. 451,832, dated May 5, 1891.

Application filed February 19, 1891. Serial No. 382,084. (No model.)

' poles for supporting Wires such as the overhead wires of electric railways, and telegraph, electric-light, and similar wires.

The object of the invention is to provide a simple and economic means for bracing the cross arm or arms of the poles'against lateral strain, whereby said arms. will be prevented from flexing to too great an extent when the wiresare drawn very tight, and whereby the tension to which the arms are subjected at such times will be distributed throughout their length.

The invention consists in the novel construction and combination of the several parts, as will be hereinafter fully set forth, and pointed out in the claims.

Reference is to be had to the accompanying drawings, forming a part of this specification, in which similar letters and figures of reference indicate corresponding parts in all the figures.

Figure 1 is a side elevation of a pole provided with my improvements. Fig. 2 is a sectional plan view of the same on the line 2 2 in Fig. 1, and Fig. 3 is a broken side elevation of the same on the line 3 3 in Fig. 2.

The mast 10 is of metal and in the shape of a Phoenix column, being constructed of a series of longitudinal sections bolted together or otherwise attached. The cross- .arms A consist of metal bars 11, having pref-' tended beyond the ends of the bars 11, and their outer extremities are united in any approved manner. Short bars 13 are secured horizontally to the mast at opposite sides. said bars being placed at a right angle to the body-bar 11 of the arms, and the short bars are provided with angle irons 14, attached to each side in like manner to the irons 12, fastened to the body of the arms.

The brace B, constituting the main feature of the invention, consists of four preferably flat bars 15, independent of each other and arranged in the shape of a diamond around the mast. Each brace-bar is rigidly bolted at one end to the upper face of a short angleiron 14 and the upper face of an opposing angle-iron 12 of the arms. It will be observed that it matters not upon what side of the arms lateral tension is exerted, as the brace-bars will act independently and in a measure concertedly to brace the arms against such tension at or near-their connection with the mast, at which points the arms are usually the weakest.

Having thus described my invention, I claim as new and desire to secure by Letters Patent- 1. In a pole for supporting wires, the combination, with a mast and an arm attached to the mast and extending beyond opposite sides thereof, of horizontal bars secured to the mast and located at a right angle to the arm, and independent brace-bars arranged in an essentially diamond shape around the mast, the said bars beingsecured at their ends to the arms and the bars projected from the mast, as and for the purpose specified.

2. In a pole for supporting Wires, the combination, with a mast and an arm secured to the mast and extending beyond opposite sides, the said arm being provided with angleirons attached to its side faces, of short bars secured to the mast and extending horizontally from opposite sides at aright angle to the arms, the said short bars being also provided with angle-irons attached to their side faces,and a brace consisting of horizontal bars arranged in a diamond shape around the mast, the ends of the said bars being bolted to the angle-irons of the arms and the bars projected from the mast, as and for the purpose specified.

FOSTER MILLIKEN. Witnesses:

EDWARD H. MITCHELL, EDWARD F. MILLIKEN.