| 摘要 |
<p>The guide trough consists of a slender elongates casing (1) with at least one of its side walls (4, 5) having a concave cross-section with an identical curvature along its whole length. It also has a lengthwise inner bar (8) passing through and intermediate partition (9) and adjustable in a slot (10, 11) in at least one end wall (6, 7). In variants of the design the end and intermediate partitions can be adjusted by pairs of actuators in the form of hydraulic cylinders or bimetallic elements connected to the bar, or the bar can have angled ends.</p> |
