A block and tackle is an assembly of pulley blocks and rope or cables that are set up to decrease the effort needed to haul or hoist heavy loads. Each block has one or more pulley. Thread the rope, alternating between the pulley attached to the block on the object you want to move an...
Related Topics: pulley hoist See all related content block and tackle, combination of a flexible rope, or cable, and pulleys commonly used to augment pulling force; it can be used to lift heavy weights or to exert large forces in any direction. In the Figure there are four freely ...
A simple pulley system. If you have ever looked at the end of a crane, or if you have ever used an engine hoist or a come-along, or if you have ever looked at the rigging on a sailboat, then you have seen a block and tackle at work. A block and tackle is an ...
block and tackle- pulley blocks with associated rope or cable hoist- lifting device for raising heavy or cumbersome objects pulley,pulley block,pulley-block,block- a simple machine consisting of a wheel with a groove in which a rope can run to change the direction or point of application of ...
30ton Pulley Tackle Hoist Hand Chain Block, Find Details and Price about Chain Block Chain Hoist from 30ton Pulley Tackle Hoist Hand Chain Block - Shaoxing Leitai Machinery Co., Ltd.
the invention relates to a carriage carries - hoist moves on a beam of the tread, the pulley block being mounted in one of the flanges of the carriage and comprising a chain bearing guided by guide rollers < / p & gt; & lt; p & gt; this carriage is characterized in that the ...
block and tackle 听听怎么读 英[blɔk ænd ˈtækl] 美[blɑk ənd ˈtækəl] 是什么意思 n. 滑轮,滑车设备; 英英释义 block and tackle n.pulley blocks with associated rope or cable 学习怎么用 权威例句 Block and tackle...
block and tackle- pulley blocks with associated rope or cable hoist- lifting device for raising heavy or cumbersome objects pulley,pulley block,pulley-block,block- a simple machine consisting of a wheel with a groove in which a rope can run to change the direction or point of application of ...
Ce GS Good Quality Manufacturer Vital Lever Block Pulley Hoist, Find Details and Price about Lever Hoist Lifting Equipment from Ce GS Good Quality Manufacturer Vital Lever Block Pulley Hoist - Ningbo Grandlifting Co., Ltd.
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