CANAL AND RIVER LOCKS.
Chap. XXVII.
Fig. 2873.
Fig. 2872
Fig. 2874.
raised by a lever; the waste water of the canal could then escape over the upper lip of thecylinder, and afterwards pass out by the paddle-holes, in the same manner as the waste waterof a cistern.
At the Caledonian Canal the head and heel-posts of the gates are connected by crossrails, and well secured by iron straps. The weight of the capstan-head employed to open
Fig. 2879.
Fig. 2875.
Fig. 2876.
Fig. 2880.