Klein's wrought iron pins with lead threads

[Trade Journal]

Publication: Electrical World

New York, NY, United States
vol. 17, no. 13, p. 251, col. 2

Insulator Pins. The pins made of wrought iron by John M. Klein & Co., of San Francisco, for electric light and railway line work have a lead screw cast upon the iron body. The screw, being lead, prevents the breaking of insulators from expansion or contraction. The stem of the pin, being wrought iron, will not decay and break, allowing the wire attached to fall in the street.


Keywords:Iron Pin
Researcher notes: 
Supplemental information: 
Researcher:Elton Gish
Date completed:September 10, 2011 by: Elton Gish;