the intaglio die, d', is attached to a yoke con- Fig. 5 is a machine for shaping sheet metal. The plate nected with the two rods, to be shaped or stamped is placed upon the die, and the at- c c, through which it is de- tendant depresses the treadle connected with the valve rod pressed by the… … first attempts, which were partially successful, were made formers, g, which, when the two dies are drawn downward, with the drop press. This, however, it was thought, did Fig. 5.—Grimshaw's Macliine for Shaping Sheet Metal. descend between guides, C D, which throw up the formers. not allow…
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