The manual training school, comprising a full statement of its aims, methods, and results, with figured drawings of shop exercises in woods and metals . 100 THE SECOND, OR MIDDLE YEAR. [Ohap. HI. Xo, 27. {Fig:. 91.) Cold chisel. Stock, I octagonal tool-steel. In forging steel, great care must be taken not to burnthe piece. Burnt steel is worthless. This exercise is first auniform draw to an edge. The operation of Tempering whichis tofollow should have many preliminary illustrations andexercises. Eveiy student should temper hischisel, even if he has to temper it several timesin order to get it
The manual training school, comprising a full statement of its aims, methods, and results, with figured drawings of shop exercises in woods and metals . 100 THE SECOND, OR MIDDLE YEAR. [Ohap. HI. Xo, 27. {Fig:. 91.) Cold chisel. Stock, I octagonal tool-steel. In forging steel, great care must be taken not to burnthe piece. Burnt steel is worthless. This exercise is first auniform draw to an edge. The operation of Tempering whichis tofollow should have many preliminary illustrations andexercises. Eveiy student should temper hischisel, even if he has to temper it several timesin order to get it right. Fig. Fig. 92. - ? ^ No. 28. (Fig. 92.) Threading tool. Stock,I X I tool-steel. This tool, and the five whichfollow, are for the students own use next yearin the machine-shop. They furnish good exer-cises in forging and temi^ering steel, as well asmeet the demand for tools.
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Keywords: ., bookcentury1900, bookdecade1900, booksubjectmanualt, bookyear1906
