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<abstract language="eng">A comparison has been made between faced hoes manufactured in Brazil and those manufactured in Great Britain. The Brazilian hoes lack uniformity in the raw materials employed in subsequent heat treatments and in the finishing processes. The British hoes were used as a standard for all comparison. Differences between Brazilian and British hoes were due in part to the differences in raw material employed and in part to the different methods of fabrication. In the author's opinion, the Brazilian hoes are of poorer quality because the raw material are very heterogeneous. They come from several sources and there is no process for selection of raw materials. In this regard it is suggested in this paper that the Brazilian factories should buy the raw material at the same source and that this material should be more carefully selected. The British hoes are more uniform and it is assumed that they are made by more modern mechanical processes and that the operations are controlled more rigorously than in Brazil. The author gives tentavite specifications for selection of raw material for the manufacture of faced hoes in Brazil. These specifications cover the chemical composition of the raw material to be employed and the width and height of the facing as well as the heat treatment to which the hoes should be submitted

bragantia

As ferramentas e máquinas agrícolas nacionais: constituição química dos materiais empregados na sua fabricação e análise de suas propriedades mecânicas. Parte I - As enxadas calçadas