| 摘要 |
1. Slide valve (22) for discharging from a trough- and chain conveyor (21), with a frame (31) which surrounds the discharge aperture (23) situated below the conveyor chain (27) and which comprises guide and drive means (35, 38) for a substantially horizontal slide valve plate (33) displaceable laterally for opening the discharge aperture, there being arranged on the frame at the height of the slide valve plate à ledge (45) on which the links (28) of the conveyor chain are slidably supported when the discharge aperture is opened, characterised in that the ledge (45) is movably arranged on the frame (31), and between the slide valve plate (33) and the ledge (45) a coupling (55, 56 ; 78, 80 ; 38, 85) is provided which serves to remove the ledge (45) from its position at the closing movement of the slide valve plate (33). |
