Overhead crane lifting a load beneath a beam, with reduced loss of height, uses support for return lifting cable that is at the top of the crane trolley

摘要

The crane trolley (14) runs on a beam (12) and has a chassis (15), on wheels (16,17), carrying a hoist (18) that raises or lowers a cable (19) and pulley block (21). The trolley has a support (24) at the top for the return cable, which ensures the lifting axis (20) is offset in the direction of movement of the trolley along the beam. The end of the cable is fixed (28) at the end of the chassis.