Dodge, Mary Mapes, 1830-1905 · [New York : Scribner & Co.] · leaf 77
il Engineers. TILTING THE BATTERY OF BINS ONPIER K AS A FULCRTM. But how are they going to raise such a heavybuilding? asked Jack, when he heard of thechange of plans. They are going to let one half the buildinghelp raise the other half, said Mr. Barto, with (To be I a smile, as he watched the… … Courtesy of the Americm Society of Civil linLjineers. ROCKING THE BINS ON PIER I ASA FULCRUM. The weight on one side of the fulcrum will helpto balance the weight on the other side. It isonly the difference in weight between the twosides that will have to be lifted. By means ofheavy lifting-jacks…
Children's literature
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