Fred Locke Pin

The Locke Insulator Pin.

A very substantial form of insulator pin, the invention of Mr. F. M. Locke, of Victor, N. Y., is shown in the accompanying illustration. In repairing, linemen often depend a good deal for support upon the pins in the cross-arms and these often break, endangering the life of the workmen and causing much trouble. The object of this invention is to obtain a pin that will not decay and will be strong enough to support a lineman if necessary. This pin can be made either solid or of hollow metal, as is seen in the illustration. It has a shoulder which sits upon the face of the cross-arm or support, when in use. The opening at the inner end of the shank is adapted to receive a dowel or nail for the purpose of securing it. The hollow pin, a section of which is also seen to the left of the cut, is preferably provided with a V-shaped slot at the outer end. In order to provide an elastic cushion contact between the pin and the insulator, the threaded end of the pin is coated with a thick layer of lead or some soft substance. These pins are made in several different styles, a section of one being shown in the upper portions of the illustration. They may also be provided with a screw or a bolt and nut as a means of securing them to the cross-arm. They are simple in construction and very durable.

Figs. 1, 2 and 3. - Locke Insulator Pin.