Compton, Alfred G. (Alfred George), 1835-1913 · New York : J. Wiley & Sons · leaf 86
72 FIRST LESSONS IN METAL WORKING. purities being thus pressed out. The lump of pure iron thus obtained is passed between strong cylindrical rollers, which have grooves turned in … Fig. 52, A. both, opposite each other as in Fig. 52, and thus drawn out into bars from 3 to 5 inches wide, and Fig. 52, B. from to f" thick. These are called “muck- bars,” or “ puddled bars,” and are coarse wrought- iron. These bars are cut into short pieces, which are fastened together, reheated,…
Metal-work
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