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Scientific American, Vol. 64, No. 12 (March 1891) (1891)

leaf 4

An illustration from Scientific American, Vol. 64, No. 12 (March 1891), 1891, leaf 4
strain is removed, the pointer, L2, on the dial. On the shaft, J', are by the breaking of the cable or other accident, the also pinions, one of which meshes into a gear spring causes it'to be instantly drawn backward, per- wheel of the cam wheel, F', and connected with mitting the hooks to drop… … heavy trucks it is claimed that no other springs will be required than the spokes of the wheels. The construc- FABNSWQRTH'S COMBINATION LOCK, n%. $. ©1891 SCIENTIFIC AMERICAN, INC.

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