| 摘要 |
An improved system (10 and 100) is disclosed in which a plurality of actuation systems (12 and 14) are activated in a timed sequence by a single prime mover (16). The prime mover is coupled to a transmission (18) which drives the first and second actuation systems for moving the first and second actuation systems between the first and second positions and back to the first position. A timer (34) is provided for controlling the timing of activation systems between the first and second positions and back to the first position. The present invention maintains precise synchronism in the actuation of the first and second actuation systems without separate power units.
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