| 摘要 |
The invention concerns a commutable device for regulating the stopper (47) of a ladle (60), whereby the stopper (47) immersed in the ladle (60) is connected to a shaft (50) which moves in a direction axial to the stopper (47) itself and which comprises advantageously a tract (58) cooperating with axial drive means (57), said device including in mutual cooperation and coordination: - an actuator means (14) cooperating with said axial drive means (57), whereby intermediate safety means are advantageously present, - and means to control and regulate the actuator means (14). |
