Patent information:

Patent:Utility 518,793
Patented:April 24, 1894
Applied:January 6, 1893
Title:Lightning Rod and Coupling
Description:Couple with internal threads to screw sections together
Category:Lightning Rod Coupling
Assigned to: 

Patentee Information:

SMITH, John W. Galesburg, IL

Class and subclass information:

Class:403JOINTS AND CONNECTIONS
Subclass:305DISTINCT END COUPLER Plural opposed sockets;
Class:15BRUSHING, SCRUBBING, AND GENERAL CLEANING
Subclass:145 
Class:174ELECTRICITY: CONDUCTORS AND INSULATORS
Subclass:126.1CONDUITS, CABLES OR CONDUCTORS Conductor structure (nonsuperconductive);
Class:285PIPE JOINTS OR COUPLINGS
Subclass:329PARTICULAR INTERFACE Diverse metal;
Class:285PIPE JOINTS OR COUPLINGS
Subclass:333PARTICULAR INTERFACE Tapered Discontinuous interface surface Threaded (e.g., drill pipe type);
Class:285PIPE JOINTS OR COUPLINGS
Subclass:55WITH CASING, LINING OR PROTECTOR Lined;

Known specimens:

None known

Drawings:

Drawing page 1

Page 1