Patent information:

Patent:Utility 884,142
Patented:April 7, 1908
Applied:November 2, 1906
Title:Insulator
Description:Cylindrical insulator with spiraling ribs to screw insulator into crossarm, center groove to hold line wire, external grooves to carry water away and drip points or serrations to allow water to drip down
Category:Crossarm
Assigned to: 

Patentee Information:

FOREMAN, Ernest Jay Trinidad, CO

Class and subclass information:

Class:174ELECTRICITY: CONDUCTORS AND INSULATORS
Subclass:168INSULATORS With conductor holding means;
Class:174ELECTRICITY: CONDUCTORS AND INSULATORS
Subclass:173INSULATORS With conductor holding means Insulator embracing Tie wires;
Class:174ELECTRICITY: CONDUCTORS AND INSULATORS
Subclass:175INSULATORS With conductor holding means Insulator structure Self-retaining;
Class:174ELECTRICITY: CONDUCTORS AND INSULATORS
Subclass:211INSULATORS With moisture or dirt removing or shedding;

Known specimens:

None known

Drawings:

Drawing page 1

Page 1