Memorandum is intended to serve as guide for use of ships' officers, stevedores, designers, and others connected with working of cargo; separate sections pertain to nomenclature with illustrations of various forms of rig, coefficients for estimating rope tensions and method of calculation, special case of union purchase rig, slewing guys for swinging derricks, marking of safe working load of single sheave blocks and use in rig, care and maintenance of cargo blocks, dock regulations, and notes on derrick testing.
Memorandum on ships' derrick rigs
Brit Standards Instn -- Brit Standard
1963
50 pages
Standard
Englisch
© Metadata Copyright Elsevier B. V. All rights reserved.
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