Figure 10. The mechanism of an early Schwilgué machine. One can notice a difference from the patent, namely an additional arm toward the left. The two arms on the left act like a clock escapement. (Archives départementales du Bas-Rhin, Strasbourg, courtesy of the Boutry Ungerer family.)
Figure 10.

The mechanism of an early Schwilgué machine. One can notice a difference from the patent, namely an additional arm toward the left. The two arms on the left act like a clock escapement. (Archives départementales du Bas-Rhin, Strasbourg, courtesy of the Boutry Ungerer family.)

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