Maine Memory Network
Maine's Online Museum

Login · My Account · Show Album


 

 

Electrical insulator pin, ca. 1917

Electrical insulator pin, ca. 1917

Item 74824 zoom send e-card Share this on Facebook Share this on Twitter

Purchase a reproduction of this item on VintageMaineImages.com.

Description

The pin is part of a type of electrical insulator -- a device that keeps electrical current from "leaking" out of lines.

The insulator with the pin (that screws into the base of the porcelain insulator) was patented in 1865.

Go back