Patent information:

Patent:Utility 915,330
Patented:March 16, 1909
Applied:March 2, 1908
Title:Insulator and Wire Clamp
Description:Self-tying twist lock type
Category:Self-tying Twist
Assigned to: 

Patentee Information:

BLACKBURN, Jasper St. Louis, MO

Class and subclass information:

Class:174ELECTRICITY: CONDUCTORS AND INSULATORS
Subclass:165INSULATORS With insulator-supporting or attaching means Support penetrating Penetrating element socketed in insulator;
Class:29METAL WORKING
Subclass:887METHOD OF MECHANICAL MANUFACTURE Electrical device making Insulator making;
Class:174ELECTRICITY: CONDUCTORS AND INSULATORS
Subclass:161RINSULATORS With insulator-supporting or attaching means Adjustably or movably mounted;
Class:174ELECTRICITY: CONDUCTORS AND INSULATORS
Subclass:175INSULATORS With conductor holding means Insulator structure Self-retaining;
Class:174ELECTRICITY: CONDUCTORS AND INSULATORS
Subclass:211INSULATORS With moisture or dirt removing or shedding;

Known specimens:

None known

Drawings:

Drawing page 1

Page 1