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Scientific American, Vol. 20, No. 19 (1869) (1869)

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An illustration from Scientific American, Vol. 20, No. 19 (1869), 1869, leaf 0
e As the operations of the sword have been so carefully re-| formed in this inner cylinder to communicate with the cylin- | throttle lever. corded by the historian, it would seem that the history of the| der of the throttle at T, and all of these openings for the} The other end of lever, G,is… … the control of the operator, being in- certain degree of elasticity, of ability to re- stantly varied in length and intensi- : : cover from the depression and shock of the ty, or fixed to work at any point with- WILLIAM A. SWEETS STEAM HAMMER. weight ofa passing train, seems to be a de- in the…

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