DIFF Subgroup
E01B 7/02 Tongues; Associated constructions
Introduced: September 1968
Full Title
Full titles differ between systems:
IPC:
Switches; Crossings > Tongues; Associated constructions
CPC:
Switches; Crossings (operating mechanisms B61L) > Tongues; Associated constructions
IPC and CPC are identically structured here. All 3 subcodes exist in both systems.
Child Classifications
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- E01B 7/04 Constructions with tongues turning about a vertical pivot at the end IPC+CPC Available in IPC and CPC
- E01B 7/06 Constructions with flexible tongues or flexible fishplates IPC+CPC Available in IPC and CPC
- E01B 7/08 Other constructions of tongues, e.g. tilting about an axis parallel to the rail, movable tongue blocks or rails IPC+CPC Available in IPC and CPC