Patent information:

Patent:Utility 272,069
Patented:February 13, 1883
Applied:February 23, 1882
Title:Insulator for Electric Conductors
Description:Knob made of two parts to hold wire (see Dario's 1886 catalog of The Electrical Supply Co.)
Category:Knob
Assigned to: 

Patentee Information:

MACE, Theodore Plainfield, NJ

Class and subclass information:

Class:174ELECTRICITY: CONDUCTORS AND INSULATORS
Subclass:156INSULATORS Divided insulator;
Class:174ELECTRICITY: CONDUCTORS AND INSULATORS
Subclass:166RINSULATORS With insulator-supporting or attaching means Support penetrating Through aperture, penetrating element clamped;

Known specimens:

None known

Drawings:

Drawing page 1

Page 1