lifting block

lifting block

[′lift·iŋ ‚bläk]
(mechanical engineering)
A combination of pulleys and ropes which allows heavy weights to be lifted with least effort.
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References in periodicals archive ?
The LDC-D unit drives a separate lifting block that has its own chain drive via a connecting shaft.
The adjustable gadget has a basket and lifting block mounted on to a shaft that is used to remove and replace bulbs in ceiling sockets.
The adjustable gadget has a basket and lifting block mounted onto a shaft which is used to remove and replace bulbs in ceiling sockets.
A unique lifting block design hermetically seals the sample plate to create perfect temperature and pressure distribution.
They are known as lifting blocks and there are regulations as to how thick they can be.
Throughout the guide Clark sprinkles simple gems of common sense: "Donald Murray taught me that brevity comes from selection, not compression, a lesson that requires lifting blocks from the work.
Mr Ramsbotham told the conference of Go For Jobs' success in lifting blocks on developments which will create 12,000 jobs.
Crosby is the world's leading manufacturer of forged lifting blocks and sheaves for use with wire rope and chain and has a significant market share in both the USA and Canadian markets.