| Show DOCKS they are numerous and are marvels of mechanical kill among the most notable systems of dock construction achieved by modern engineering science calcutta may be said to present a conspicuous example the entrance to these docks is through a channel SO feet wide and a lock 60 feet wide terminating in a basin measuring feet two entrances feet wide lead from the basin to the doali proper which is 2600 feet long 60 feet wide for the greater part of its length and covers 34 acres two dry dock also leading off from the basin one of them feet long and the other feet while the river is low these waterways are supplied with fresl water from the neighborhood and elaborate provision is made to remove thi mud from aliis water before it is pumped into the basin the docks are equipped with 56 movable hydraulic cranes of which 50 are constructed to lift as much as 1 tons while the remainder can handle weights of 5 tons all of them overhanging the quay 20 feet and operated by water under pressure as abc also the lock gates capstans and swing bridges about the docks the water is under a pressure of pounds and is furnished by two pairs of hydraulic engines each of horse power |
