| 摘要 |
A fitting gear (110) for assisting in the alignment of metal plates (118 and 126) so that the edges thereof can be welded together includes an inverted substantially U-shaped electromagnet (112) which, when energized, is adapted to be secured to the upper surface (116) of one of the plates (118) adjacent an edge thereof. A wedge-shaped tapered pin (114) is forced into the U and contacts the upper surface (124) of the other plate (126) to move the edges into substantial alignment with each other.
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