| 摘要 |
A device to simulate the rolling of a hypothetical wheel along a path is provided. The device includes a wheel sector mounted to one end of a rotor. A drive is provided for rotating the rotor in one direction and the sector in the opposite direction so that the sector remains substantially tangent to a line segment. The wheel sector is driven by a pulley the diameter of which is one-half that of a drive pulley rotated with the rotor.
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