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Scientific American, Vol. 75, No. 22 (November 1896) (1896)
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, one beneath each readers that if the counterweights were permitted to shaft and gearing, so as to insure that the men on rail. The spans are framed as stringers to a header gir- either side will work evenly. The counterweights, each fall vertically, the bridge would be raised at an accel- der at… … COUNTERWEIGHTED LIFT BEIDGE ON THE ERIE RAILROAD, NEAR RUTHERFORD N. J. © 1896 SCIENTIFIC AMERICAN, INC.Patents · Wire · Inventor · Munn · Gun · Scientific American · Inch · American supplement · Express money · Wire gun · Niagara falls · Segmental wire · Elastic strength · Building edition · Horse power · Export edition
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