Patent information:

Patent:Utility 770,960
Patented:September 27, 1904
Applied:November 6, 1903
Title:Third Rail Insulator
Description:Third rail insulator with metal cap to hold the rail and a metal clip to secure the insulator to the metal support.
Category:Third Rail
Assigned to: 

Patentee Information:

DUNBAR, Robert V. New York, NY

Class and subclass information:

Class:191ELECTRICITY: TRANSMISSION TO VEHICLES
Subclass:32CONDUCTORS Third rail Supports;

Known specimens:

None known

Drawings:

Drawing page 1

Page 1

Drawing page 2

Page 2