| 摘要 |
A variable and reversible transmission, in which two co-linear shafts are provided with adjustably-locatable generally semi-spherical drive components or heads, with control means for changing and holding selected adjustments of the heads; and the heads drivingly engage one another, in whatever settings they are positioned, by acting through a pulley belt which may be either an idler for only transmitting torque from one head directly to the other, or may be a power member transferring power to another set of such heads, achieving both variability and reversibility of drive.
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