A blast of air is driven into it by a fan connected to treadles.
The clamps are applied by treadles convenient to the foot of the operator.
The treadles, as I have said, were very long; the brake did not always act, and the steering apparatus was stiff.
It required the merest touch on the treadles to send them skimming along like skaters on smooth ice, or swallows flying low.
In 1822, he made a vehicle that was moved by a pair of treadles and cranks worked by the driver.
But the age of treadles in the great manufacturing trades is a thing of the past.
He looked sideways at her as she sat beside him with her ankles gracefully ruling the treadles.
Then the road rose quietly but persistently; the treadles grew heavy, and Mr. Hoopdriver's breath sounded like a saw.
The warp is arranged in the loom, and the weaver sits on the floor and uses her hands and feet, the latter working the treadles.
The depression of one of the treadles causes the shaft to rotate, and also lifts the other treadle into position to be operated.