| 摘要 |
<p>The machine for unloading has a frame with four feet slidable in rails, a freely rotatable shaft being positioned on each side of the frame. Each shaft carries four star wheels each with four limbs. Two star wheels on each shaft are positioned between guides for the objects. A slidable platform is displaceable between the two shafts each side of the platform having a guide in the centre of which is an aperture. The two other star wheels of each shaft follow the movement, of the platform, one limb being received in the aperture and the other bearing on the platform. The limbs of the star wheels serve to displace the objects.</p> |
