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Opened Tschanz drive of the Burgdorf-Thun-Bahn (BTB) railcar BCe 2/5
Is this a Tschanz drive? It looks more like a form of Buchli drive.
The German book cited here [1] has a line drawing which shows the key of the Tschanz drive as being a long shaft through the centre of a hollow axle, with small angular articulations at each end. Buchli, and this photo, instead have a more complex linkage set in one plane mounted on the face of a wheel or driven gear. Andy Dingley (talk) 09:39, 7 September 2019 (UTC)[reply]
