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Typically consists of three or four doors that hang on a center shaft and rotate around a vertical axis within a round enclosure.

Rotating Door

Typically consists of three or four doors that hang on a center shaft and rotate around a vertical axis…

"Scutching-machine or Scutcher for Flax. a, feed-table on which the flax is fed to the fluted rollers b, b', which seize it and present it to the scutches or beaters c, fastened by supports d to the rotating drum e. The latter revolves in a case f, with a grating at the bottom. The feed-rolls are driven by gearing i." -Whitney, 1911

Scutcher

"Scutching-machine or Scutcher for Flax. a, feed-table on which the flax is fed to the fluted rollers…

A wheel is a circular device that is capable of rotating on its axis, facilitating movement or transportation.

Wheel

A wheel is a circular device that is capable of rotating on its axis, facilitating movement or transportation.