treadle

Treadle water pumps in Africa and Asia allowed women farmers to irrigate small plots and increase their harvests and incomes.

A little black girl sat on the floor, and with her hands worked the treadle of the machine.

Bent low over the machine, he seems absorbed in the work, his hands deftly manipulating the shuttle, his foot on the treadle.

The wheel propelled by the treadle of the sewing machine will make a good drive wheel.

You stood before this and turned a large wheel at the left to start it, after which you kept it going with one foot on a treadle.

All that is necessary is to leave an extension to the arm or heel of the treadle to catch over the jaw of the trap.