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.

px px dpi = cm x cm = MB
Details

Creative#:

TOP09159718

Source:

達志影像

Authorization Type:

RM

Release Information:

須由TPG 完整授權

Model Release:

NO

Property Release:

NO

Right to Privacy:

No

Same folder images:

Same folder images