Hand-operated track car Jura-Bern-Luzern Railway JBL 1890 For a long time, track inspections were made on foot. To speed up the work, American railways with long routes built self-propelled track cars. Two men moved a rocking beam up and down, which, using a bicycle-like transmission, propelled the track car. In 1890, the Jura-Bern-Luzern Railway bought one of these for inspecting the Brunig lines. Oehler 0.4 t hand-operated approx 20 km/h load limit 0.5 t gauge 1000 mm restored by CFF in operation 1890-1950