Winterthur Universal Drive

The Winterthur Universal Drive or SLM Universal Drive (German: Universal-Antrieb Winterthur) was a drive for electric locomotives invented by Swiss engineer Jakob Buchli at Swiss Locomotive and Machine Works (SLM) in the 1920s.

Winterthur Universal Drive

The Winterthur Universal Drive or SLM Universal Drive (German: Universal-Antrieb Winterthur) was a drive for electric locomotives invented by Swiss engineer Jakob Buchli at Swiss Locomotive and Machine Works (SLM) in the 1920s.