Patent information:

Patent:Utility 234,523
Patented:November 16, 1880
Applied:August 6, 1880
Title:Telegraph Insulator
Description:Slotted circular insulator held by split metal screw bracket
Category:Slotted
Assigned to: 

Patentee Information:

BIGEON, Charles Cincinnati, OH

Class and subclass information:

Class:174ELECTRICITY: CONDUCTORS AND INSULATORS
Subclass:154INSULATORS Insulator and conductor embracing holder;
Class:174ELECTRICITY: CONDUCTORS AND INSULATORS
Subclass:164INSULATORS With insulator-supporting or attaching means Support penetrating;
Class:411EXPANDED, THREADED, DRIVEN, HEADED, TOOL-DEFORMED, OR LOCKED-THREADED FASTENER
Subclass:427INTERNALLY THREADED FASTENER ELEMENT, E.G., NUT, ETC.;

Known specimens:

None known

Drawings:

Drawing page 1

Page 1