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Scientific American, Vol. 82, No. 4 (January 1900) (1900)

leaf 3

An illustration from Scientific American, Vol. 82, No. 4 (January 1900), 1900, leaf 3
. After the suspender has been laid over the upper main The tension of the springs will hold the hammer nor- band saddle and beneath bottom shoe, and its ends mally in vertical position. In order to regulate the elevation of the sledge and coupled by the sleeve nut, the proper load is thrown the… … the roadway having a full width of 118 feet, and ac- chief assistant engineer of the bridge. BOWLING'S FOOT-POWER HAMMER. commodating two steam railroad tracks, four trolley tracks, two roadways, and two passenger sidewalks. New Electric Light Carbons. The bridge has now reached the stage in its…

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