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009801

Perpendicular Canal Lift. Cranes hoisted a tub boat, the weight of which was counterbalanced by tub of water in shaft parallel to path of boat. Semaphore signal indicated status of boat. Not found practicable. From 'A Treatise on the Improvement of Canal Navigation' by Robert Fulton (London, 1796). Robert Fulton (1765-1815) American engineer. Engraving.

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009801.jpg
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Irish Photo Archive
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2410x2810 / 1.5MB
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Perpendicular Canal Lift. Cranes hoisted a tub boat, the weight of which was counterbalanced by tub of water in shaft parallel to path of boat. Semaphore signal indicated status of boat. Not found practicable.   From 'A Treatise on the Improvement of Canal Navigation' by Robert Fulton (London, 1796).  Robert Fulton (1765-1815) American engineer. Engraving.