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A double-ended hold-fast, made by pointing the turned ends of an ordinary wrought-iron clamp. Useful for drawing the halves of core-boxes together, and numerous other purposes in the foundry.
Twelve hundred entries from the golden age of cast metal — how bells are founded, why brass is not bronze, what a cupola melts and a core withstands — by Simpson Bolland, the trade's great teacher.
A double-ended hold-fast, made by pointing the turned ends of an ordinary wrought-iron clamp. Useful for drawing the halves of core-boxes together, and numerous other purposes in the foundry.