Patent information:

Patent:Utility 224,580
Patented:February 17, 1880
Applied:December 24, 1879
Title:Induced Current Guard for Electrical Conductors
Description:Pre-transposition technique to eliminate induced current on telephone and telegraph wires
Category:Transposition
Assigned to: 

Patentee Information:

CHINNOCK, Charles E. Brooklyn, NY

Class and subclass information:

Class:174ELECTRICITY: CONDUCTORS AND INSULATORS
Subclass:32ANTI-INDUCTIVE STRUCTURES;
Class:174ELECTRICITY: CONDUCTORS AND INSULATORS
Subclass:45ROVERHEAD Towers, poles or posts;
Class:174ELECTRICITY: CONDUCTORS AND INSULATORS
Subclass:140RINSULATORS Combined With conductive arcing or stress distributing means;
Class:307ELECTRICAL TRANSMISSION OR INTERCONNECTION SYSTEMS
Subclass:90 
Class:361ELECTRICITY: ELECTRICAL SYSTEMS AND DEVICES
Subclass:132SAFETY AND PROTECTION OF SYSTEMS AND DEVICES High voltage dissipation (e.g., lightning arrester) Combined (e.g., with disconnect switch) With line supporting insulator;

Known specimens:

None known

Drawings:

Drawing page 1

Page 1