Topic summary
BSI coupling
Extracted from the Wikipedia article Railway coupling.
Multi-function couplers
There are a few designs of fully automatic couplers in use worldwide, including the Scharfenberg coupler, various knuckle hybrids such as the Tightlock (used in the UK), the Wedglock coupling, BSI coupling (Bergische Stahl Industrie, now Faiveley Transport), and the Schaku-Tomlinson Tightlock coupling.