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Scientific American, Vol. 69, No. 20 (1893) (1893)

leaf 3

An illustration from Scientific American, Vol. 69, No. 20 (1893), 1893, leaf 3
n ing gear. In front of the machine are two upright vice is wade in the form of a pistol, which it closely columns, on whose faces move four carriages, two on resembles inappearance. The handie is grasped firmly each, containing the driving and feeding gear for the in the hand of the operator, the… … units and tens, the second hundreds, and vertical shaft driven by the bevel wheels THE “PARAGON” SPEED INDICATOR, the third thousands of revolutions. By beneath the bed of the machine. The means of a thumb nut at the back of the dial frame, bar has a long key way cut in it, in which slides Further…

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