| 摘要 |
<p>The conveyor has two driven chains (1) passing round driving and driven shafts supported by lengthwise members (13) and connected by rods (2) lying perpendicular to the chains. Each of the rods (2) carries at least two separate and sliding cross-pieces (3,4) which interact with guide bars (5,6) beneath the conveyor. This is to move them together or apart to make two separate conveyor surfaces. In a variant of the design the movement of the crosspieces can be produced by threaded couplings and a rotary shaft.</p> |
