Patent information:

Patent:Utility 890,891
Patented:June 16, 1908
Applied:November 18, 1907
Title:Insulator Pin
Description:Bracket to hold two insulators vertically
Category:Bracket
Assigned to:Fredric Greer

Patentee Information:

DORFF, Conrad J. Chicago, IL

Class and subclass information:

Class:174ELECTRICITY: CONDUCTORS AND INSULATORS
Subclass:204INSULATORS With terminal elements Pin type Screw or bayonet type Sheet material thread;
Class:174ELECTRICITY: CONDUCTORS AND INSULATORS
Subclass:149RINSULATORS Multiple insulator assemblies Multiple conductor;
Class:174ELECTRICITY: CONDUCTORS AND INSULATORS
Subclass:158RINSULATORS With insulator-supporting or attaching means;
Class:248SUPPORTS
Subclass:67.7PIPE OR CABLE Brackets Double arm;

Known specimens:

None known

Drawings:

Drawing page 1

Page 1