Amateur mechanics ... a book for old and young who like to make things .. (1907)
Popular mechanics magazine, Chicago. [from old catalog] · Chicago, Popular mechanics · leaf 42
ks in revolving will not strike theoperators knees. If desired,split-wood handles may beplaced on the cranks, to pre-vent them from rubbing the The bearings. B, can bemade of hard wood, butpreferably of iron pipe filledwith melted babbitt. If bab-bitt is used, either thor-oughly smoke or chalk… … Paddle Boat in Operation The hubs, C, should be made ofwood, drilled to fit the shaft and mor-tised out to hold the paddles. D. Thecovers. E, may be constructed of thinwood or galvanized iron and shouldbe braced by triangular boarir as
Handicraft · Amusements
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