Don't know your spur wheel from your stone nut? Here’s what some of the main windmill words mean.
This is near the top of the mill, the first wheel in the series of gears that powers the mill and is attached to the windshaft so it’s turned directly by the sails. It drives the wallower (the big wheel that drives the vertical shaft), gripping the outside of it to slow the mill. The brake wheel is usually made of wood.
The best type of stone for grinding grain, used throughout Europe. Fairly expensive small pieces of stone are set into plaster of Paris.
The earliest type of European mill, which was mounted on a post. The whole mill turned around the post to face the wind. These were not as strong as smock mills like Brixton Windmill where only the top of the building turns.
A freestanding cast-iron mill first driven by steam and then by gas.
Wind-powered mechanism for lifting sacks of grain to the top of the mill.
The cutting of grooves on the grinding surface of the millstone. The grain is ground as it catches on these grooves while the stones are spinning.
This expression means the sails are facing the wrong way, and they could be blown off!