Illustrated catalogue and general description of improved machine tools for working metal (1899)
Sellers, William, & co. [from old catalog] · Philadephia, Levytype company · leaf 284
one for travelling the bridge and another for hoisting the load, whilea third is required for traversing the carriage. In this type of crane the variousmovements are controlled by stopping, starting, or reversing the motors governingthese movements, and changes of speed are commonly produced by… … 5-TON TRAVELUNG CRANE. Driven by single constant speed motor. Hoisting drum and operatingclutches on top of bridge (ma)- be arranged to one side if less head room is avail-able). Carriage traversed by endless chain and sprocket wheels. Hook will gowithin 18 of runway rails. A convenient type for…
Machine-tools · Machinery
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