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2. Conveyor pulley - Wikipedia

   en.wikipedia.org/wiki/Conveyor_pulley

   A conveyor pulley is a mechanical device used to change the direction of the belt in a conveyor system, to drive the belt, and to tension the belt. Modern pulleys are ...

3. WaldrichSiegen - Wikipedia

   en.wikipedia.org/wiki/WaldrichSiegen

   WaldrichSiegen Werkzeugmaschinen GmbH is a German manufacturer of heavy duty machine tools in the product lines milling, turning, boring, grinding and texturing. The internationally operating company has production and service sites in the USA, in China and India.

4. Differential pulley - Wikipedia

   en.wikipedia.org/wiki/Differential_pulley

   A dumb pulley can lift very large masses a short distance. It consists of two fixed pulleys of unequal radii that are attached to each other and rotate together, a single pulley bearing the load, and an endless rope looped around the pulleys. To avoid slippage, the rope is usually replaced by a chain, and the connected pulleys by sprockets.

5. Conveyor belt - Wikipedia

   en.wikipedia.org/wiki/Conveyor_belt

   A conveyor belt is the carrying medium of a belt conveyor system (often shortened to belt conveyor). A belt conveyor system is one of many types of conveyor systems.A belt conveyor system consists of two or more pulleys (sometimes referred to as drums), with a closed loop of carrying medium—the conveyor belt—that rotates about them.

6. Line shaft - Wikipedia

   en.wikipedia.org/wiki/Line_shaft

   The fixed pulley on the upper shaft is driven at constant speed by a belt from the power source. The loose pulley ('idler') allows the machine to be stopped in isolation – necessary for changing speed. The stepped pulleys (left) provide three drive speeds for the machine tool (not shown), depending on which pair of pulleys is connected by the ...

7. Crane (machine) - Wikipedia

   en.wikipedia.org/wiki/Crane_(machine)

   A crane is a machine used to move materials both vertically and horizontally, utilizing a system of a boom, hoist, wire ropes or chains, and sheaves for lifting and relocating heavy objects within the swing of its boom. The device uses one or more simple machines, such as the lever and pulley, to create mechanical advantage to do its work.