His head was down and his shoulders rounded, as he put every ounce of energy that he possessed on to the pedals. 阿瑟·柯南·道尔.福尔摩斯归来记.
In 1855 Ernst Michaux, a French locksmith, applied, for the first time, the foot cranks and pedals to the axle of the drive wheel. Edward W. Byrn.十九世纪发明进展.
In this the high wheel was behind and the small one in front, and straps and ratchet wheels connected the pedals to the axle. Edward W. Byrn.十九世纪发明进展.
It should be understood that propulsion of this first Copeland model was not intended to depend solely upon mechanical power, but to be operated in connection with the foot pedals. 佚名.神奇的知识之书.