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This glossary of mill machinery covers the major pieces of machinery to be found in windmills, watermills and horse mills. It does not cover machinery found in modern factories.〔 * covers most entries〕〔 * covers ''Buck'', ''Crown Tree'', ''Pintle'', ''Samson Head''〕 ==Watermill machinery== ;Axle The ''axle'' carries the ''waterwheel''. It can also carry the ''Pit Wheel'' at its opposite end. ;Bedstone The ''Bedstone'' is the bottom of a pair of millstones. It does not move. The upper stone is called the ''Runner Stone''. ;Crown Wheel The ''Crown Wheel'' is a driving wheel located at the top of the ''Upright Shaft'' ;Great Spur Wheel The ''Great Spur Wheel'' is a large gear attached to the ''Upright Shaft''. It drives one or more ''Stone Nuts'' in a corn mill. If mounted on a ''Layshaft'' it is called a ''Spur Wheel'' and only drives one ''Stone Nut'' ;Hurst Frame An internal framework supporting the gears and millstones. This isolation prevents damage to the building from the vibrations of the workings. ;Layshaft A ''Layshaft'' in a watermill is a horizontal shaft, carrying a ''Wallower'' and one or more ''Spur Wheels''. The term can also refer to a minor shaft driving machinery by pulleys and belts. ;Overdrift Millstones driven from above are known as ''Overdrift'' stones. ;Pit Wheel The ''Pit Wheel'' is mounted on the opposite end of the ''axle'' to the ''waterwheel''. It drives the ''Wallower'' on the ''Upright Shaft'' or ''Layshaft''. ;Rim Drive Some waterwheels have a rack attached to the circumference, which drives the mill via a pinion mounted on a separate axle, which has a ''Pit Wheel'' at its opposite end. This is known as ''Rim Drive''. ;Runner Stone The ''Runner Stone'' is the topmost of a pair of millstones. It is driven by the ''Stone Nut''. The lower stone is called a ''Bedstone''. ;Stone Nut A ''Stone Nut'' is a small gear driven by the ''Great Spur Wheel'' or Spur Wheel. It drives the ''Runner Stone''. In most watermills, the stones are driven from below. These are called ''Underdrift'' stones. A few watermills drove the stones from above, known as ''Overdrift'' stones. ;Turbine (詳細はwaterwheel'' is a source of power for a watermill. It is mounted on the ''axle'' and drives the mill by a ''Pit Wheel'' or ''Rim Drive''. In some watermills, the ''Waterwheel'' was replaced by a ''Turbine''. 抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』 ■ウィキペディアで「Glossary of mill machinery」の詳細全文を読む スポンサード リンク
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