| 摘要 |
A vacuum actuated power take off assembly for a winch which is preferably mounted on a vehicle and part of a tow truck structure of the type commonly known. A power shaft is connected in cooperative relation to the transmission vehicle and an activating means is operated through manipulation of a fluid operable switch which directs the negative pressure from the internal combustion engine to a fluid power drive structure which serves to dispose a connecting gear between the drive shaft and a power take off of the transmission into and out of operative position relative to drivingly attaching the drive shaft to the transmission for operation of the winch.
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