'Barker's mill' definitions:
Definition of 'Barker's mill'
From: GCIDE
- Barker's mill \Bark"er's mill`\ [From Dr. Barker, the inventor.] A machine, invented in the 17th century, worked by a form of reaction wheel. The water flows into a vertical tube and gushes from apertures in hollow horizontal arms, causing the machine to revolve on its axis. [1913 Webster]