| 摘要 |
Apparatus for mounting and dismounting a submerged propeller unit to and from the hull of a floating body from the outside thereof comprising a flange in the hull surrounding an opening therein and having passages therein, a flange on the propeller unit having fasteners at locations corresponding to the locations of the passages in the hull flange, a drive coupling member on the propeller unit, a plurality of guides on the propeller unit for guiding the coupling member into the hull opening and for positioning the propeller unit flange in proper relation to the hull flange as the propeller unit is raised into position, a plurality of cables secured at their upper ends to a hoisting cable with their lower ends extending through watertight ways in the hull for coupling detachably to a plurality of locations on the propeller unit, spreaders located between the hoisting cable and the floating body for positioning the cables in substantial alignment with the respective cable ways in the hull, the cable ways being positioned to correspond to locations where the lower cable ends are coupled to the propeller unit, and a turnbuckle for adjusting the length of at least one of the cables between the hoisting cable and the propeller unit whereby the propeller unit flange may be raised to the level of the hull with the fasteners in the former in registry with the passages in the latter to facilitate securing the propeller unit flange to the hull flange.
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