Patent information:

Patent:Utility 1,163,132
Patented:December 7, 1915
Applied:March 1, 1915
Title:Insulator Pin
Description:Insulator pin with two shanks that are driven into the mine ceiling or wall at right angles to each other in order to more securely hold the insulator.
Category:Pin/mine
Assigned to:St. Louis Malleable Casting Co.

Patentee Information:

ETTE, Charles G. St. Louis, MO

Class and subclass information:

Class:248SUPPORTS
Subclass:547WITH MEANS TO FACILITATE INSTALLATION, REPAIR, OR TRANSPORTATION, OR BROKEN PARTS RETAINER For support cutting or piercing Nail guide or holder;
Class:248SUPPORTS
Subclass:217.2BRACKETS Specially mounted or attached Including support piercing or cutting means Plural means engaging in different directions;

Known specimens:

None known

Drawings:

Drawing page 1

Page 1