Lathe, treadle

treadle.jpg Leonardo da Vinci’s sketchbook shows one of the earliest drawings of a continuous action treadle lathe. The essential element of the treadle lathe is the crank mechanism that converts the reciprocating action of the foot treadle into the rotary motion of the fly wheel, which in turn drives the work. Treadle lathes, unlike spring-pole lathes, move at a higher speed and allow for continuous cutting.

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