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Appletons' cyclopaedia of applied mechanics: a dictionary of mechanical engineering and the mechanical arts (1880)

D. Appleton and Company, Benjamin, Park, 1849-1922 · New York, D. Appleton · leaf 85

An illustration from Appletons' cyclopaedia of applied mechanics: a dictionary of mechanical engineering and the mechanical arts, 1880, leaf 85
thorough working over. The crude gum is presented by the feeding rollers G[ to the action 76 GUTTA-PERCHA. of the first breaker F\ It is by the latter broken up into shreds or fragments, and considerablequantities of earthy and other extraneous matters arc beaten out of and disengaged from it,… … 8829.

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