Patent information:

Patent:Utility 1,374,998
Patented:April 19, 1921
Applied:February 14, 1918
Title:Insulator
Description:Multipart porcelain insulator of Faradoid design (spelling for other patents: GILCHREST, George Irving)
Category:Multipart
Assigned to:Westinghouse Electric & Mfg. Co.

Patentee Information:

FORTESCUE, Charles Le G. Pittsburg, PA
GILCHREST, George I. Wilkinsburg, PA

Class and subclass information:

Class:174ELECTRICITY: CONDUCTORS AND INSULATORS
Subclass:140CINSULATORS Combined With conductive arcing or stress distributing means Coated;
Class:174ELECTRICITY: CONDUCTORS AND INSULATORS
Subclass:210INSULATORS Sectional, multi-part, composite, or coated Pin socket type;
Class:174ELECTRICITY: CONDUCTORS AND INSULATORS
Subclass:212INSULATORS Surface configuration;

Known specimens:

Number:Specimen known

Drawings:

Drawing page 1

Page 1

Drawing page 2

Page 2