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1. 发明授权

US3633531A Trolling device for boats 失效
标题翻译：船舶装载装置
公开(公告)号：US3633531A
公开(公告)日：1972-01-11
申请号：US3633531D
申请日：1970-01-23
申请人： THOMAS A HAYES
发明人： HAYES THOMAS A
IPC分类号： B63H25/44 , B63H25/50
CPC分类号： B63H20/34 , B63H25/44 , B63H25/50
摘要： A special device is provided for slowing down the rate of advance of a boat in a body of water, the boat being driven by the blades of a propeller shaft of an engine substantially independently of the speed of rotation of the shaft and hence of the blades. The device preferably is removable so that it can be installed and used when it is desired to use the boat at slow speeds, such as for trolling; and so that when the device is removed, the boat may be made to move at relatively high speeds, such as going to and from a desired fishing area. In other words, the special device permits the use of a relatively high-speed motor to operate the same boat at relatively low speeds.
摘要翻译：提供了一种特殊装置，用于减慢船体在水体中的前进速度，该船由发动机的传动轴的叶片驱动，基本上与轴的旋转速度和叶片的旋转速度无关。该装置优选是可拆卸的，使得当需要以慢速使用船只（例如用于拖钓）时可以安装和使用该装置; 并且使得当装置被移除时，船可以被制造成以相对较高的速度移动，诸如去往和来自期望的捕捞区域。换句话说，专用装置允许使用相对高速的电动机以相对低的速度操作相同的船。

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