The Viaduct Works' Handbook
Forfatter: Henry N. Maynard
År: 1868
Forlag: E. And F. N. Spon
Sted: London
Sider: 108
UDK: 624.3
Being A Collection Of Examples From Actual Practice Of Viaducts, Bridges, Roofs, And Other Structures In Iron; Together With Tables Of Prices, Weights, And Other Information Useful To Engineers In Design And Estimating Wrought And Cast-Iron Work
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71
The cost of the above size, including chain 30 feet with screw, &c.,
complete, ready for fixing, is from £80 to about £90 each, and de-
pends upon the size and quantity of chain and class of buoy required.
The following table in reference to sizes of chains having reference to
ship’s tonnage, is approved by the principal shipowners, &c.:—