Patent information:

Patent:Utility 173,962
Patented:February 22, 1876
Applied:November 29, 1875
Title:Improvement in Couplings for Tubing and Lightning Rods
Description:Coupling made of a short hollow piece placed inside both ends of the rod and crimped down through the rod ends to secure the sections
Category:Lightning Rod Coupling
Assigned to:Reyburn, Hunter & Co.

Patentee Information:

JOHNSON, Isaac Chicago, IL

Class and subclass information:

Class:285PIPE JOINTS OR COUPLINGS
Subclass:382DEFORMED;
Class:15BRUSHING, SCRUBBING, AND GENERAL CLEANING
Subclass:145 
Class:174ELECTRICITY: CONDUCTORS AND INSULATORS
Subclass:126.1CONDUITS, CABLES OR CONDUCTORS Conductor structure (nonsuperconductive);
Class:279CHUCKS OR SOCKETS
Subclass:104 
Class:285PIPE JOINTS OR COUPLINGS
Subclass:397INTERNAL SLEEVE;
Class:29METAL WORKING
Subclass:517METHOD OF MECHANICAL MANUFACTURE Assembling or joining Joining by deforming Inward deformation of aperture or hollow body wall Hollow body is axially joined cup or tube Joined to rod;
Class:403JOINTS AND CONNECTIONS
Subclass:285MEMBER DEFORMED IN SITU Both members deformed;

Known specimens:

None known

Drawings:

Drawing page 1

Page 1