An auger in a snow blower or grain elevator is essentially an Archimedes screw. Engines were re-used as X29493, an experimental snow blower. A new snow blower is used from 2016. A snow blower car manufactured by Niigata Transys, one unit has been manufactured. The rotary snow blower was moved to Train Mountain on November 16, 2008. Robert Carr-Harris patented the "Railway Screw Snow Excavator" Snow blower in 1870.