treadle

Pronunciation:  US [ˈtred(ə)l] UK ['tred(ə)l]
  • v.Treadle; pedal switch (sewing machine)
  • n.(Especially the old drive machinery) pedal
  • WebPedal; track contactors pedal pedal switch
  • Her aunt's workroom, with its..treadle sewing machine.
    Source: attrib.