Patent information:

Patent:Utility 1,538,428
Patented:May 19, 1925
Applied:August 27, 1920
Title:Pole Line Insulator
Description:Self-tying odd insulator screwed into cut-out in top of crossarm
Category:Self-tying Miscellaneous
Assigned to: 

Patentee Information:

EMMONS, Albert F. Pittsburg, PA

Class and subclass information:

Class:174ELECTRICITY: CONDUCTORS AND INSULATORS
Subclass:155INSULATORS Insulator and conductor embracing holder Divided insulator;
Class:174ELECTRICITY: CONDUCTORS AND INSULATORS
Subclass:156INSULATORS Divided insulator;
Class:174ELECTRICITY: CONDUCTORS AND INSULATORS
Subclass:158RINSULATORS With insulator-supporting or attaching means;
Class:174ELECTRICITY: CONDUCTORS AND INSULATORS
Subclass:174INSULATORS With conductor holding means Insulator structure;

Known specimens:

None known

Drawings:

Drawing page 1

Page 1