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IPC Subgroup
E01B 7/02

Tongues; Associated constructions

Introduced: September 1968

Last revised: January 2006

Full Title

Switches; Crossings > Tongues; Associated constructions

Classification Context

Section:
FIXED CONSTRUCTIONS
Class:
CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
Subclass:
PERMANENT WAY; PERMANENT-WAY TOOLS; MACHINES FOR MAKING RAILWAYS OF ALL KINDS

3 direct subcodes

Child Classifications

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  • E01B 7/04 Constructions with tongues turning about a vertical pivot at the end
  • E01B 7/06 Constructions with flexible tongues or flexible fishplates
  • E01B 7/08 Other constructions of tongues, e.g. tilting about an axis parallel to the rail, movable tongue blocks or rails