| 摘要 |
<p>When pipes 8 are rollingly conveyed through a furnace along parallel rails 7, any lateral migrations of the pipes are periodically corrected by movable stops 18 which are extended inwardly in unison to abut the pipe ends and re-center them. The stops are mounted on elbowed arms 14 articulated about axes 15 disposed beneath the furnace bed together with fluid control cylinders 16 for the arms, thus providing unobstructed access around the side walls 2 of the furnace. The pipes roll over elevated slide runners 11 during their lateral re-centering by the stops, thereby avoiding the wear and abrasion of the rail crowns.</p> |
