Translations:Adventist Youth Honors Answer Book/Household Arts/Basic Sewing/14/en
From Pathfinder Wiki
h. Control
The control is a foot pedal that is similar to the gas pedal in a car. When it is fully depressed, the sewing machine operates at its maximum speed. When lightly depressed, the machine operates more slowly. When released, the sewing machine stops. Having a foot-operated control frees both hands for guiding the cloth through the machine.