A device used to lift something heavy. By using a pulley, you half the effective weight.
Rope and pulley.
A pulley is a simple machine that consists of a wheel with a groove around its circumference where a rope or belt can run. It is used to lift or move objects by applying force to the rope or belt, making work easier.
The part of a pulley where the rope lies is called the groove or the sheave. This is the part of the pulley that provides the surface for the rope to run along while the pulley rotates.
i have acquired a clothes pulley and do not know how to feed the rope through for operation
A pulley doesn't raise or hoist sails. A pulley is just a wheel that eases a change in direction of a rope. It is a rope that hoists or raises sails. A rope for this purpose is called a Halyard.
A rope goes over the wheel of a pulley and can also be threaded through the grooves to increase friction and grip. The way the rope is positioned on the pulley determines how it will interact with the load being lifted.
The rope slipping off the wheel of a pulley is prevented primarily by the friction between the rope and the surface of the pulley. If the pulley is designed with a groove or a textured surface, it enhances this grip, ensuring that the rope stays in place during use. Additionally, the tension in the rope can create a force that helps keep it seated securely within the pulley. Proper alignment and maintenance of the pulley system also play a role in preventing slipping.
A simple pulley is a basic type of pulley that consists of a wheel with a groove around its circumference and a rope or cord that runs through the groove. It is used to change the direction of a force or to lift or lower an object.
The rope pulled over the branch is hampered by the rope's friction over the branch. The same rope pulled over a pulley is not affected by friction as the pulley wheel will turn as the rope is pulled.
A flagpole can be considered a simple pulley system because the rope attached to the flag acts as a type of pulley, allowing the flag to be raised and lowered by pulling on the rope. This system demonstrates how pulleys can be used to change the direction of force to make lifting and lowering objects easier.
a pulley is a wheel with a groove along with a rope or chain.
A pulley is consists of groved a over which a string or rope passes...by sherezade