Word: jointsâ
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...Where riveting-gangs of four men would have been required, single operators had manipulated portable arc-welders, thus interfering less with other workmen. The time saved was over 20%. Strength tests showed the welded joints to be 100% strong, as against a 65% to 70% average for riveted joints???that is, the welds were as strong as the girders they joined, often stronger under test stresses. Rivets shear or rip out their holes sooner than the girders break...
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