Patent information:

Patent:Utility 790,214
Patented:May 16, 1905
Applied:December 14, 1904
Title:Method of Manufacturing High Potential Earthenware Insulators
Description:Earthenware, manufacture of hi-potential insulators
Category:Earthenware
Assigned to: 

Patentee Information:

LOCKE, Fred M. Victor, NY

Class and subclass information:

Class:264PLASTIC AND NONMETALLIC ARTICLE SHAPING OR TREATING: PROCESSES
Subclass:602HEAT POLISHING (E.G., GLAZING, ETC.) OF INORGANIC ARTICLE SURFACE OUTSIDE OF MOLD With coating outside of mold;
Class:264PLASTIC AND NONMETALLIC ARTICLE SHAPING OR TREATING: PROCESSES
Subclass:312MECHANICAL SHAPING OR MOLDING TO FORM OR REFORM SHAPED ARTICLE Shaping against forming surface (e.g., casting, die shaping, etc.) By rotation of material or material shaping member Inner relatively rotating member to form hollow article;
Class:264PLASTIC AND NONMETALLIC ARTICLE SHAPING OR TREATING: PROCESSES
Subclass:504DIRECT APPLICATION OF FLUID PRESSURE DIFFERENTIAL TO PERMANENTLY SHAPE, DISTORT, OR SUSTAIN WORK Perforation by differential fluid pressure or smoothing, scoring, or cutting of green concrete with fluid pressure;
Class:264PLASTIC AND NONMETALLIC ARTICLE SHAPING OR TREATING: PROCESSES
Subclass:572DIRECT APPLICATION OF FLUID PRESSURE DIFFERENTIAL TO PERMANENTLY SHAPE, DISTORT, OR SUSTAIN WORK With internal application of fluid pressure;
Class:264PLASTIC AND NONMETALLIC ARTICLE SHAPING OR TREATING: PROCESSES
Subclass:614OUTSIDE OF MOLD SINTERING OR VITRIFYING OF SHAPED INORGANIC ARTICLE OR PREFORM Of electrical article or electrical component (i.e., not insulator, per se);
Class:264PLASTIC AND NONMETALLIC ARTICLE SHAPING OR TREATING: PROCESSES
Subclass:DIG39Treatment of clay before and after molding;
Class:425PLASTIC ARTICLE OR EARTHENWARE SHAPING OR TREATING: APPARATUS
Subclass:457DYNAMIC MALE SHAPING MEANS INCLUDING MECHANICAL MOVEMENT OR POWER MEANS;

Known specimens:

None known

Drawings:

Drawing page 1

Page 1