| 摘要 |
An assembly of gates is provided at each end of a vat. Two uprights mounted on a lock-chamber floor support respective brackets. Pivoted between the floor and the brackets are gate flaps, the pivot rods of which are fitted in holes in the floor and in the brackets. Each gate flap includes a notch, and the successive gates match successive diameters of elongated elements which travel through the vat. In case of localized excess thickness on an elongated element, the impact causes spontaneous opening of the gate guiding the element. |
