1) Canal inclined plane
Found on
https://www.crosswordclues.com/clue/water-slope
A water slope (Pente d`eau) is a type of canal inclined plane built to carry boats from a canal or river at one elevation up to or down to a canal or river at another elevation. ==Operation== The water slope uses a moveable gate in a sloping channel invented by the German engineer Julius Greve at the end of the 19th century and described by the F....
Found on
http://en.wikipedia.org/wiki/Water_slope
No exact match found.
