New Security nail knob insulator

[Trade Journal]

Publication: Electrical World

New York, NY, United States
p. 421, col. 2-3

The New Security Insulator.

The accompanying illustration shows what has been termed the "New Security Insulator," which is about to be placed on the market by the Security Insulator Company, of 136 Liberty street, New York City. Many points of superiority are claimed for it, among which may be mentioned the fact that it is easily and quickly adjusted to the insulation, the wire being pressed into a groove by a cap, and this cap by means of a cam movement is made to grasp...

THE SECURITY INSULATOR.

The Security Insulator.

[Missing text]

Keywords:	Security Insulator Company : Knob
Researcher notes:
Supplemental information:	Patent: 480,011
Researcher:	Robbie Delius
Date completed:	January 28, 2006 by: Elton Gish;