Lifting machine for casting concrete - has two concrete skips working together, one stationary over mould other moving to fill it

摘要

The equipment is used to decrease the skip turn round time interval and so place wet concrete more rapidly especially where casting has to be slow and careful and be done at a great height. The lifting jib (3) has rails (4) along which run lifting pulleys (5,6), each working independently from each other with wires (7,8) and fixed pulleys (11,12) so that two skips (1,2) can move independently both horizontally and vertically. The supply skip (1) goes up and down from the concrete mixer while the casting skip (2) remains stationary over the work (13) to be cast.