Block
Of machine and block and tackle. May also be referred to as pulley, pulley block and pulley-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 a force applied to the rope.
This concept's ID is @1~21971
Contains
- fairlead
A pulley-block used to guide a rope forming part of a ship's rigging to avoid chafing.
- bollock
A pulley-block at the head of a topmast.
- idle pulley
A pulley on a shaft that presses against a guide belt to guide or tighten it.