and have horns, K. There is a half pulley, L, attached to the middle of axle It ; it has a pin, i, passing through it. which, when the horns, K, are elevated catches into a recess, , on a lever ...
A pulley is a wheel on a fixed axle. The wheels normally have a groove in them, to guide a rope or cable through. One end of the rope is attached to a load that needs to be lifted. Then the other ...
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