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 a force applied to the rope
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pulley block::noun | Spocien Dictionary
| Type | Words |
|---|---|
| Synonyms | block, pulley, pulley-block |
| Type of | simple machine, machine |
| Has types | bullock block, fairlead, idle wheel, idler pulley, idle pulley, bollock |
Examples of pulley block
pulley block
Richard Tangye's company then acquires the patent of the differential pulley-block in 1859, and in 1862 he invents the Tangye Patent Hydraulic Jack.
From the en.wikipedia.org
So a two-pulley block would spilt the weight of your notional 10kg object evenly, meaning you would only have to apply 5kg of force to lift it.
From the guardian.co.uk
During construction, on January 26, 1833, two workers were killed when a 70 foot crane constructed to install the roof trusses broke and the pulley block failed.
From the en.wikipedia.org
Notice that there are two parts of the rope through each pulley in a block, and an additional part for the start of the rope that is attached to one of the blocks.
From the en.wikipedia.org
A rope attached to the top of the wooden block holding the axe ran over a pulley at the top of the structure, allowing the block to be raised.
From the en.wikipedia.org
By adding a pulley to the fixed block of a gun tackle the direction of the pulling force is reversed though the mechanical advantage remains the same, Diagram 3a.
From the en.wikipedia.org
A rope attached to the block ran over a pulley, allowing it to be raised, after which the rope was secured by attaching it to a pin in the base.
From the en.wikipedia.org
Pulley wheels provide mechanical advantage to drive ancillaries or, in the form of a block and tackle, remove the engine from the car altogether.
From the telegraph.co.uk
