| 摘要 |
<p>The invention relates to a mechanism for simultaneously actuating two screen frames, in low-capacity grain milling cylinders. According to the invention, the mechanism consists of a double eccentric (A) whose body has two cylindrical surfaces (a and b) of different symmetry axes, the eccentricity thereof having the value e1, and a device (C) for coupling-uncoupling a screen frame.</p> |
