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 87
and with the exercise of a little pa-tience and moderate skill, very goodteeth mav be cut on blank wheels. This interesting letter and lightningflash photograph were received fromFred M. Roberts, Paterson, X. J., anddescribe how he profited from an articlepublished in Popular Mechanics. Keceiving a… … Brilliant Cloud Effect Making Model Wheels First take the case of a small gear-wheel, say 1 in. outside diameter andTV in. thick, with twenty.-four teeth.Draw a circle on paper, the same diam-eter as the wheel. Divide the circum-ference into the number of parts de-sired, by drawing diameters, Fig.…
Handicraft · Amusements
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