Patent information:

Patent:Utility 258,061
Patented:May 16, 1882
Applied:March 2, 1882
Title:Screw for Fastening Telegraph Wires
Description:Metal screw with self-tying end for holding a telegraph wire.
Category:Screw
Assigned to: 

Patentee Information:

HAVILAND, Andrew J. Fort Dodge, IA

Class and subclass information:

Class:256FENCES
Subclass:53WIRE Connections Cross Nonaligned slots;
Class:174ELECTRICITY: CONDUCTORS AND INSULATORS
Subclass:170INSULATORS With conductor holding means Fitting or terminal type Hooks;
Class:256FENCES
Subclass:48WIRE Connections Cross;
Class:411EXPANDED, THREADED, DRIVEN, HEADED, TOOL-DEFORMED, OR LOCKED-THREADED FASTENER
Subclass:402EXTERNALLY THREADED FASTENER ELEMENT, E.G., BOLT, SCREW, ETC. Head driving structure;

Known specimens:

None known

Drawings:

Drawing page 1

Page 1