Patent information:

Patent:Utility 99,145
Patented:January 25, 1870
Applied:
Title:Improvement in the Manufacture of Insulators for Telegraph Poles
Description:Press for making insulators, first making hole, then threads
Category:Press
Assigned to: 

Patentee Information:

BROOKE, Homer New York, NY

Class and subclass information:

Class:65GLASS MANUFACTURING
Subclass:316PRESS MOLDING MACHINE With means to rotate plunger during withdrawal;

Known specimens:

Number:Specimen known

Drawings:

Drawing page 1

Page 1