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Mechanical movements, powers and devices; a treatise describing mechanical movements and devices used in construcive and operative mechinery and the mechanical arts, being practically a mechanical dictionary (1917)

Hiscox, Gardner Dexter, 1822?-1908 · New York : The Norman W. Henley publishing co. · leaf 316

An illustration from Mechanical movements, powers and devices; a treatise describing mechanical movements and devices used in construcive and operative mechinery and the mechanical arts, being practically a mechanical dictionary, 1917, leaf 316
1256. CLAM-SHELL BUCKET, for dredging. Operated by a double chain.One chain is attached to the joint of thelong arms, the other chain passes arounda sheave in the joint of the lazy tongsthat opens the bucket, and is made fast tothe first chain. The bucket is suspendedby the first-named chain to… … 1257. REVOLVING HOISTINGDREDGE, balanced on railwaytruck. Lancaster pattern, withclam-shell bucket. ^lO MINING.

Mechanical movements

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