| 摘要 |
A boat hoist combining a vertical rectangular frame; a horizontally disposed platform having a shallow V-shape fore and aft movably attached to the frame; winch operated pulley and cable system to raise and lower the platform on the frame a retainer device mounted within the platform to improve operation of pulleys and cable; self-adjusting full length bunk support for a boat hull; centering guides dualing as step boards; and a front end boat stop longitudinally adjustably mounted on the bunk support unit.
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