Woodwork for secondary schools; a text-book for high schools and colleges, prevocational and elementary industrial schools (1916)
Griffith, Ira Samuel, 1874-1924 · Peoria, Ill., Manual Arts Press · leaf 88
p andFitment of Knives.—In Fig. 139,cross-sections of two types of headsare shown. The older type is so dangerous that it isbeing universally supplanted by the newer type, the cir-cular or safety head. In this newer type the head andits shaft are turned from a solid steel forging. Theknives are… … A Safety Head.Fig. 140. 84 WOODWORK FOR SECONDARY SCHOOLS. by accident l)e i)ressed upon them, will clip off theflesh painfully. This, however, is not to be compared tothe result of such a movement on the old type, the loss of the fine^ers beinof ausual sequence. In setting knives in ahead it is…
Woodwork (Manual training)
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