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In the screw press, the screw is turned by means of a lever, which gives a great increase of mechanical advantage.

Screw Press

In the screw press, the screw is turned by means of a lever, which gives a great increase of mechanical…

An illustration of a screw press which is a type of machine used to shape or cut metal.

Screw Press

An illustration of a screw press which is a type of machine used to shape or cut metal.