Forfatter: A.-M.Inst.C E., George Frederick Zimmer
År: 1916
Forlag: Crosby Lockwood and Son
Sted: London
Sider: 752
UDK: 621.87 Zim, 621.86 Zim
Being a Treatise on the Handling and Storing of Material such as Grain, Coal, Ore, Timber, Etc., by Automatic or Semi-Automatic Machinery, together with the Various Accessories used in the Manipulation of such Plant
COAL TIPS OR HOISTS 529
framework consisting principally of two long girders, so that the apparatus can be pushed
in and out, but in all other respects the tip is the same as Figs. 736 and 737.
Sunderland Gravity Coal Shipper.—The River Wear Commissioners at Sunderland
have installed a 20-ton gravity coal tip, which was supplied by Cowans, Sheldon, & Co.,
Ltd., of Carlisle. The apparatus, Fig. 744, presented some entirely new features: it has
Figs. 738 to 740. Another Type of Stevenson’s Coal Tip.
two large swinging arms, carrying at the outer ends a steel cradle and at the back end
a heavy counterbalance weight.
It is for the purpose of dealing with hoppered wagons of 10 to 12 tons’ capacity and
is so designed that they can, under the easy control of a powerful brake, be lowered safely
by gravity right down to, and even into, the ship’s hold before they are discharged, thus
minimising the breakage of the tender coal handled at that port. The empty wagons are
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