832 MODERN STEAM PRACTICE . must be made to connect the deck pump and donkey , or small steam pump , with them . The top of the tank is covered with planking 3 inches in thickness , so as to pre - vent the coals making indenta - tions or otherwise injuring the plating in the process of shipping .… … division to another , so that it may readily escape by the air pipe . The upper side of the plating is to be protected hy 2 j 4 inch planking . Figs . 6oi , 602 are from illustrations given by Lloyds of the arrangement of water ballast spaces , and show very clearly themost approved methods of…
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