Patent information:

Patent:Utility 1,215,883
Patented:February 13, 1917
Applied:April 16, 1914
Title:Crosstree for Telegraph Poles
Description:Large blocks of wood securing in between the blocks halves of a stone or porcelain insulator mounted on a crossarm to secure the wire
Category:Insulator
Assigned to: 

Patentee Information:

SIMPSON, John Stewart Ingomar, MS

Class and subclass information:

Class:174ELECTRICITY: CONDUCTORS AND INSULATORS
Subclass:149RINSULATORS Multiple insulator assemblies Multiple conductor;
Class:174ELECTRICITY: CONDUCTORS AND INSULATORS
Subclass:157INSULATORS Divided insulator Aligned through aperture;

Known specimens:

None known

Drawings:

Drawing page 1

Page 1

Drawing page 2

Page 2