Patent information:

Patent:Utility 1,779,811
Patented:October 28, 1930
Applied:January 3, 1928
Title:Method of Manufacturing Insulators
Description:Press for making skirts/petticoats in one-piece porcelain (replaces casting)
Category:Press
Assigned to: 

Patentee Information:

HARVEY, William F. Lima, NY

Class and subclass information:

Class:264PLASTIC AND NONMETALLIC ARTICLE SHAPING OR TREATING: PROCESSES
Subclass:296MECHANICAL SHAPING OR MOLDING TO FORM OR REFORM SHAPED ARTICLE Plural sequential shaping or molding steps on same workpiece One step reshapes portion only of article;
Class:249STATIC MOLDS
Subclass:59FORMING HELICAL OR THREADED PRODUCT;
Class:264PLASTIC AND NONMETALLIC ARTICLE SHAPING OR TREATING: PROCESSES
Subclass:333MECHANICAL SHAPING OR MOLDING TO FORM OR REFORM SHAPED ARTICLE Shaping against forming surface (e.g., casting, die shaping, etc.) Applying heat or pressure Inorganic hydraulic settable material shaping;
Class:425PLASTIC ARTICLE OR EARTHENWARE SHAPING OR TREATING: APPARATUS
Subclass:324.1DIVERSE DISTINCT TYPE SHAPING MEANS;

Known specimens:

None known

Drawings:

Drawing page 1

Page 1

Drawing page 2

Page 2