US1098945A - Pole-scaffold. - Google Patents

Description

G. E. FREDERICK.

POLE SGAFFOLD. APPLICATION FILED JULY 25, 1912.

1,098,945, Patented June 2, 19 14.

7 I; J 6 6 1 x 4 Elma/Mom (/1 War/um 6724/ /e.s ZZZ/ cm? UNITED STATES PATENT OFFICE.

CHARLES E. FREDERICK, OF TOMBSTONE, ARIZONA.

IPOLE-SCAFFOLD.

To all whom it may concern:

Be it known that I, CHARLES E. FREDER- IOK, a citizen of the United States, residing at Tombstone, in the county of Cochise and State of Arizona, have invented certain new and useful Improvements in Pole-scaffolds, of which the following is a specification.

The scaffold which is the subject of the present invention is designed more particularly for the use of linemen in putting up or repairing telegraph and telephone wires, and its object is to provide a scaffold which can be easily and quiclny applied to the pole, and which is so constructed that it is firmly held in place on the pole.

In the accompanying drawing forming a part of this specification, Figure 1 is a plan view showing the application of the invention, and Fig. 2 is a section on the line 2-2 of Fig. 1.

Referring specifically to the drawing, the scaffold comprises a yoke 5 between the branches 6 of which is rigidly mounted a platform 7 which latter provides a seat or stand for the lineman. In the top edge of the yoke branches, near the outer ends thereof, are downwardly extending slots 8 which are in alinement and are designed to form seats for a transverse rod 9, connected to one of the yoke branches by a chain or other flexible device 10. The platform does not extend to the outer ends of the yoke branches, and the latter project some distance from the front edge of the platform, on which edge is mounted a plate 11 having at its lower edge downward and forwardly inclined teeth 12. The ends of the plate are bent in between the longitudinal edges of the platform and the inner surface of the yoke branches, and are suitably fastened to the latter as shown in Fig. l. The teeth extend below the bottom of the platform.

The scaffold is applied to the pole 13 by placing the yoke thereon so that its branches extend along opposite sides thereof as shown in Fig. 1. The rod 9 is placed in the seats 8 so as to extend across the back of the pole, and the teeth 12 engage the front of the Specification of Letters Patent.

Application filed July 25, 1912.

Patented June 2, 1914.

Serial No. 711,472.

pole. Two sets of seats are provided so that the rod may be adjusted according to the diameter of the pole, in view of which the scaffold may be applied to poles of different diameters.

The scafi'old can be quickly applied to the pole and removed therefrom, and it can also be slid upward thereon by the lineman when climbing the pole, so as to afford a hand hold if he should slip.

With the parts in position on the pole as described and shown, any weight placed on the platform tends to tilt that end of the scaffold downward, which causes the teeth 12 to bite into the pole, and rod 9 to press against the pole on the opposite side thereof, whereby the scaffold is securely held on the pole, and effectually prevented from slipping down thereon. The greater the weight placed on the platform, the more firmly will the scaffold be clamped to the pole. If the scaflold is to be applied to a round pole, the toothed plate will be curved to conform to the curvature of the pole.

I claim:

A pole scaffold comprising a rigid yoke, a platform mounted between the branches thereof, said branches projecting beyond the front edge of the platform and having seats in their top edges, a plate mounted on the front edge of the platform and having downward and forward projecting teeth, the ends of said plate having rearward bends extending and secured between the longitudinal edges of the platform. and the inner surface of the yoke branches, and a cross rod loosely and removably mounted in the aforesaid seats, said rod being engageable with one side of the pole and the teeth with the opposite side thereof, said teeth being located below the plane of the rod.

In testimony whereof I aflix my signature in presence of two witnesses.

CHARLES E. FREDERICK.

iVitnesses:

C. L. CUMMINGS, ALFRED LEKMANN.

Copies of this patent may be obtained for five cents each, by addressing the Commissioner of Patents, Washington, D. G.

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