| 摘要 |
A transportable welding station has a first tower supporting at least one pair of power-driven rollers and a second tower supporting a pair of rollers aligned with those of the first tower. A piece of pipe may be cut or welded as it is supported and rotated by the two sets of rollers, thereby permitting a smooth continuous cut or weld around the entire circumference of pipe. To accommodate different lengths of pipe, a welder can change the distance between the two towers. A version with two pairs of power-driven rollers supported by the first tower allows short lengths of pipe to be welded. Even shorter or irregularly shaped pieces may be welded as they are held by a chuck that is turned by the rollers supported by the first tower. A work table is also provided to allow those whose job is to tack, or tentatively join, pipe sections so that those people may work with a small ancillary welding machine. A fold-up jib crane allows heavy pipe workpieces to be loaded onto the welding station.
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