The Civil engineer and architect's journal, scientific and railway gazette (1839)
London : [William Laxton] · leaf 276
a grating 1847.] THE CIVIL ENGINEER AND ARCHITECPS JOURNAL. 245 intended to prevent the channel c c from becoming obstructed, n n is achannel or pipe, communicating with the chamber H, and the lower level,through the valve-gate 0. 7n is a manhole in the leaf (/, for the purposeof getting at the… … Fig. 2. Fig. S is a cross section of the same. The plan represents the wicket-gate as closed, and the lock, as well asthe chamber H, full of water. When it is desired to empty the lock, theralve-gateo, communicating with the lower level, through the channel n n,is opened ; at the same time, the|…
Architecture · Civil engineering · Science
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