Modern mechanism, exhibiting the latest progress in machines, motors, and the transmission of power, being a supplementary volume to Appletons' cyclopaedia of applied mechanics (1892)
Benjamin, Park, 1849-1922 · New York, D. Appleton · leaf 661
its brittleness. Malleable iron is now used for thefrog of the plow. It unites the advantages of economical manufacture and interchange-ability, owing to the uniformity easily attained in malleable iron pieces, even frog fittingall plows of the same pattern in case of necessary repairs. Welded… … PLOWS. 635 new parts. With the malleable iron frog an unskilled person can place the new parts withordinary home tools. Composite metal is used with singular success for the share and breastof plows, made by superposing molten crucible steel in a layer on a red-hot malleable founda-tion. The ingots…
Mechanical engineering
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