hey are hidden by the punch. They rise, however, from a steel bed, as in the former instance, and the punch, instead of being filed to an acute angle, is left square, and has two holes drilled in its face to admit the pins, and allow the punch to play. There are two screws by which to regulate the… … I do not claim the setting of saws by punching, the same having been heretofore practised; but what I claim as my improvements, are, the use of the two pins to guide the tooth of the saw; the making of the iron frame so that the limbs which contain the screws form a T with the body of the…
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