| 摘要 |
The disclosed invention comprises a simple, efficient and inexpensive transmission for varying speed and engagement of power comprising a planetary drive with input means driven by a prime mover's output, scheduled friction brake means for gradually slowing and stopping the rotation of an idler wheel member of the planetary drive so that as the force of the brake is increased, power is automatically transferred from the idler wheel member to the output of the planetary drive, starting with a slow speed with high torque to a fast speed with lower torque by scheduled increments which enable rotation of the output shaft, under load resistance, without prime mover stall.
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