The Modern bicycle and its accessories; a complete reference book for rider, dealer, and maker (1898)
Schwalbach, Alexander, Wilcox, Julius, Commercial advertiser association, New York · New York, The Commercial advertiser association · leaf 68
protrudedbetween the lov er and upper dies resemblesa fin or web; this has caused the forging tobe mistaken for a casting of iron, becausethe fin resembles in no small degree thegate or connection between castings when moulded. This fin of metal is trimmedoff from the forging by means of… … WOLFF-AMERICAN LAPPED JOINT. struction. Drop-forging manufacturers saythat hand-made forgings are obsolete, ow-ing to the enormous cost of manufacture. Malleable iron castings, or steel castings,are used by some of the makers, but entire-ly sub rosa. They are apt to be full of blowholes and other…
Bicycles
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