. The ways of our railways . n theform of an anti-breakage box, has been devised,which is lowered down by a crane to receive the coalat the foot of the shoot, and in which the coal isfurther lowered until it is in close proximity to thehold of the vessel. This box is made in two parts,so arranged that it opens automatically by thetightening of a chain at a certain stage in the opera-tion of lowering, and closes automatically whenraised. The use of the box can be dispensed withafter part of the cargo has been loaded, as the heapof coal rising in the hold itself serves to break theforce of the f
. The ways of our railways . n theform of an anti-breakage box, has been devised,which is lowered down by a crane to receive the coalat the foot of the shoot, and in which the coal isfurther lowered until it is in close proximity to thehold of the vessel. This box is made in two parts,so arranged that it opens automatically by thetightening of a chain at a certain stage in the opera-tion of lowering, and closes automatically whenraised. The use of the box can be dispensed withafter part of the cargo has been loaded, as the heapof coal rising in the hold itself serves to break theforce of the fall from the shoot. When the four movable tips at Penarth are con-centrated upon a single vessel, four ten-ton coalwagons can, in the space of thirty seconds, be liftedfrom the quay, their contents tipped into the shoot,and the empty wagons brought back to quay the operations of feeding the cradle \vith wagonsfrom the siding on the quay, and boxing and trimmingthe coal as it falls from the shoot, make it impossible. O . z ^ DOCKS AND STEAMSHIPS. 281 to ship a whole cargo at the maximum speed of thetips themselves. The results obtained are, never-theless, very remarkable. On one occasion a vesseltook in 2,333 ^oi^s in one hour fifty-five minutes,1,430 tons being shipped in the first hour, or at therate of nearly twenty-four tons a minute. At otherparts of the dock, where the conditions allow high-level tips to be used, and it is not necessary to raisethe wagons by hydraulic power before tipping them,an even greater amount of work can be done per high-level tips are necessarily fixed; theadvantage of the low-level ones is that they aremovable, and the whole four at Penarth can be con-centrated on to a single vessel. The coal shipped at Tyne Dock and other EastCoast ports is not so fragile as the South \^alesproduct, and the shipping is usually done with hopper-wagons which are run on to staiths or jetties builtout into the dock, with four or five loading-spouts
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Keywords: ., bookcentury1900, bookdecade1910, booksubjectrailroa, bookyear1910
