Mechanical movements, powers, devices and appliances; (1903)
Hiscox, Gardner Dexter, 1822?-1908 · New York, The N.W. Henley & co. · leaf 318
1255. CONTINUOUS DITCHINGDREDGE. — Discharging overhead ,-,* on the banks by a carrier from under/ the bucket discharge. … 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…
Mechanical movements
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