Dodge, Mary Mapes, 1830-1905 · [New York : Scribner & Co.] · leaf 553
3 long are driven into theholes and made fast by nailing through theedge of the gear-wheel. Before these pins aredriven in place it will be well to nail a cross-piece, O, i thick (shown by dotted lines inFig 8 and in full in Fig. 9) across the grainof the wood. This serves the double purpose 928… … P, as shown in Fig. lo. A pulley-wheel, X,is mounted on the shaft, so that we may usethe power of the windmill to drive any pieceof machinery that wc wish. A collar, Q, issecured to the shaft just under the flooring ofthe top of the tower. In order to have theshaft and gear-wheel revolve readily,…
Children's literature
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