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Rogers）访问了上述升降机以理解并研究提升式闸门系统的可实现的构想，最後升降机由英国公司Clark, Stansfield & Clark的埃德温·克拉克（英语：Edwin Clark (civil engineer)）设计。 起卸机是成对的，由两个垂直的移动水槽或沉箱组成，每个中央均由铁柱所支持。这
Williams）提出使用一套液压机械来在两条水道之间垂直运送船只。威廉姆斯随后咨询专精于液压结构的埃德温·克拉克（英语：Edwin Clark (civil engineer)），克拉克构想的升船机包含左右两座水槽，分别置于杆上，插入地下的液压缸。经过设计，在高处与运河联通时会有5英尺（1
Bases in World War II: History of the Bureau of Yards and Docks and the Civil Engineer Corps, 1940-1946. U.S. Department of the Navy, Bureau of Yards and Docks
includes photographs of Joule's house and gravesite Dr. Joule. Electrical Engineer (London: Biggs & Co). 1889, (18 October): 311–312 [16 May 2008]. - obituary
ISSN 1444-3058. doi:10.1080/14443058.2013.849750. （原始内容存档于2020-04-23）. Meese, Edwin, (born 2 Dec. 1931), lawyer; Ronald Reagan Distinguished Fellow in Public