US291435A - Device for attaching cross-bars to telegraph-poles - Google Patents

Description

(No Model.)

0. H WAGNER. DEVICE FOR ATTACHING GROSS BARS T0 TELEGRAPH POLES. No. 291,435.

Patented Jan. 1, 1884.

u. PFIERS. Phctn-Lilhwgraphen Washvnglun. D. c.

cross-arm with the clamps attached.

UNITED STATES PATENT OFFICE.

CHRISTOPHER I-I. WVAGNER, OF ELKHART, INDIANA, ASSIGNOR OF ONE- THIRD TO WILLIAM KLINE, OF TOLEDO, OHIO.

DEVICE FOR ATTACHING CROSS-BARS TO T ELEGRAPH-POLES.

SPECIFICATION forming part of Letters Patent No. 291,435, dated January 1, 1884,

Application filed April 19, 1883. (X model.)

i'b all whom it may concern:

Be it known that I, CHRISTOPHER ILWAG- NEE, a citizen of the United States, residing at Elkh art, in the county of Elkhart and State of Indiana, have invented a new and useful Device for Attaching Gross-Bars to Telegraph- Poles, of which the following isa specification, reference being had to the accompanying drawingsp This invention relates to an-improved device for attaching the cross-arms to telegraphpoles; and it has for its object to avoid the necessity of cutting notches in the poles for the reception of said cross-bars, as isusually practiced, and whereby the poles are greatly weakened.

To this end the invention consists in the improved construction of certain clamps or holders, as will be hereinafter fully described, and particularly pointed out in the claims.

In the drawings hereto annexed, Figure 1 is a top view of my invention applied to a telegraph-pole. Fig.2 is a front view of the Fig. 3 is a side view of the same. Fig. 4 isa front view of one of the clamps or holders. Fig. 5 is a side view of the same, and Fig. 6 is a sec tion on the line 00 m in Fig. 4:.

The same letters refer to the same parts in the several figures.

A A in the drawings represent the clamps or holders which constitute my invention, and

y of which two are used for each cross-arm which is to be secured to the pole. The said clamps or holders consist of plates wedgeshaped in cross-section, as clearly shown in Fig. 6 of the drawings, their outer ends or edges being the thickest. The upper and tightening the bolts or spikes, the lugs or I barbs F are drawn into the pole, to which the cross-arm is thus attached securely against vertical displacement. By this construction and arrangement of parts the cross-arms are enabled to support the strain and weight of the wires, and, when occasion requires, of the repairman, without strain upon the bolts and withoutweakening the poles by cutting notches in them for the reception of the cross-arms.

, I claim as my invention and desire to secure by Letters Patent of the United States- 1. The herein-described clamps or holders for attaching cross-arms to telegraph-poles, the same consisting of wedge-shaped horizontallyslotted plates having rearwardly-projecting sharp-pointed lugs or barbs and forwardly-extending flanges at their upper and lower ends, substantially as set forth.

2. The combination, with a telegraph-pole, of a pair of clamps or holders, consisting of wedge-shaped horizontally-slotted plates having rearwardly-projecting sharppointed lugs or barbs and forwardly-extending flanges at their upper and lower ends, a cross-arm fitted between said flanges, and fastening bolts or spikes, substantially as and for the purpose.

set forth.

In testimony that I claim the foregoing as my own I have hereto affixed my signature in presence of two witnesses.

CHRISTOPHER II. WAGNER. Witnesses: I

WILLIAM D. MIDDLETON, JOHN F. GRUBB.

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