| 摘要 |
The gravity-operated machine comprises a drum formed by discs turning in roller bearings with the aid of a lever. Hollow weighted rods pivot at points equally spaced round a plate. - A weight counterbalances the effect of part of the rods. The lever brings all the dynamic loads to the top dead-centre position and also controls the speed and the direction of rotation. (7pp Dwg. No.0/1)
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