Lift control device for propeller drive systems on watercrafts

Marine propulsion – Screw propeller – With means effecting or facilitating movement of propulsion...

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B63H 512

Patent

active

042167370

ABSTRACT:
An improved lift control in a steerable propeller or Z-drive for watercrafts. The drive includes a transmission shaft which extends from the engine to a point below the water level and to the propeller. The transmission shaft is arranged in the housing. For purposes of tilting the housing out of the water and/or trimming the angle of thrust, at least one pressure cylinder is provided and is arranged in the housing which contains the transmission shaft.

REFERENCES:
patent: 2997014 (1961-08-01), Puckett
patent: 3008445 (1961-11-01), Frank
patent: 3577953 (1971-05-01), Braun
patent: 3589326 (1971-06-01), Celli
patent: 3859952 (1975-01-01), Celli
patent: 3893407 (1975-07-01), Hurst
patent: 4137862 (1979-02-01), Niederste-Hollenberg et al.

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