A brake was provided for in the specification, as were also variable gears for changing speed, and an automatic blower for the fire. Edward W. Byrn.十九世纪发明进展.
As the waxed disc and pan are revolved, the stylus and diaphragm are gradually moved by gears toward the center of the disc. Edward W. Byrn.十九世纪发明进展.
All of the parts of the bicycle have come in for a share of attention at the hands of inventors, differential speed gears and brakes having received especial attention. Edward W. Byrn.十九世纪发明进展.
As the armature rotates, its motion is communicated by gears to the wheels, the necessary current reaching the motor through the overhead wires. 伯莎M.克拉克.科学通论.
A large sulphate of copper battery was employed, which could through the agency of a train of gears give only a very slow speed. Edward W. Byrn.十九世纪发明进展.
It consisted of a circular series of barrels mounted on a central shaft, and revolved by suitable gears and a hand crank. Edward W. Byrn.十九世纪发明进展.
This model was kept first at G?ttingen and afterward at Hanover, but it did not act efficiently, as the gears were not cut with sufficient accuracy. 佚名.神奇的知识之书.
He became thoroughly familiar with the intricacies of fire-box, boiler, valves, levers, and gears, and liked nothing better than to handle the locomotive himself during the run. 弗兰克·刘易斯·戴尔.爱迪生的生平和发明.