Dingey, Peter Spear. [from old catalog] · New York, J. Wiley & sons · leaf 32
s country when he conceived the idea that led upto the Differential Pulley Block. While Mr. Weston was at Buffalo, witnessing attemptsto raise a vessel that had gone down off that city, thethought occurred to him that the necessary power couldbe obtained from the Chinese windlass, the rope of… … DIFFERENTIAL CHAIN WHEELS. PATTERN MAKING, 1/ After much scheming, Weston returned to Englandand called on numerous engineering establishments, sub-mitting his drawings, but he could find none that wouldtake hold and experiment on his block. Finally he calledinto a small job shop where the…
Patternmaking
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