Patent information:

Patent:Utility 1,978,627
Patented:October 30, 1934
Applied:May 10, 1932
Title:Vibrating Plunging Machine
Description:Manufacturing method using a vibrating plunger tool to form the underside shape of the insulator without causing stresses in the finished porcelain
Category:Manufacturing
Assigned to:Locke Insulator Corp.

Patentee Information:

GOUVERNEUR, Minor F. H. Baltimore, MD

Class and subclass information:

Class:425PLASTIC ARTICLE OR EARTHENWARE SHAPING OR TREATING: APPARATUS
Subclass:418PRESS FORMING APPARATUS HAVING OPPOSED PRESS MEMBERS Male shaping member and female mold Means rotating male shaping members;
Class:425PLASTIC ARTICLE OR EARTHENWARE SHAPING OR TREATING: APPARATUS
Subclass:421PRESS FORMING APPARATUS HAVING OPPOSED PRESS MEMBERS Male shaping member and female mold Including vibrator or tamper;

Known specimens:

None known

Drawings:

Drawing page 1

Page 1

Drawing page 2

Page 2

Drawing page 3

Page 3