| 摘要 |
<p>The device has towing ropes (3) provided between two rings (1, 2) and a central rope roll (4) mounted in one of the ring which serves as a holding ring. The roll is rotated by a spiral spring and the rotation of the roll is transferred by a drive to a vessel such that the vessel is positioned on the holding ring. The vessel is set in a translatory motion when the vessel rotates along with the holding ring.</p> |
