This platform could be raised and lowered by the foot, by means of a treadle.
He gave the treadle a thrust that sent him off like an arrow from a bow.
The father's voice relaxed, and his foot lay limp on the treadle.
Such machines are worked by power and set going by the pressure of a treadle.
Paging, which is for made-up books, is done by a machine worked by a treadle.