The manual training school, comprising a full statement of its aims, methods, and results, with figured drawings of shop exercises in woods and metals . Fig. 34. No. 20. {Figs. 33 and 34.) A dovetail joint witln a miter. This is equally hard with the last. In place of a third ortho-graphic projection of each piece, I have given a perspectiveview which at once makes it all clear. The finished joint maybe glued. Chap. II.] BENCH EXERCISES. 49 No, 21. [Fig. 35.) A false double-dovetailed joint. This very interesting exercise is difficult from the necessity ofsawing very obliquely to the grain for
The manual training school, comprising a full statement of its aims, methods, and results, with figured drawings of shop exercises in woods and metals . Fig. 34. No. 20. {Figs. 33 and 34.) A dovetail joint witln a miter. This is equally hard with the last. In place of a third ortho-graphic projection of each piece, I have given a perspectiveview which at once makes it all clear. The finished joint maybe glued. Chap. II.] BENCH EXERCISES. 49 No, 21. [Fig. 35.) A false double-dovetailed joint. This very interesting exercise is difficult from the necessity ofsawing very obliquely to the grain for the sides of the exact dimensions of the tenon are either given directly, orthey may be found on the drawing of the mortise. When wellexecuted and snugly put together, the combination appears torepresent an impossibility. The double-dovetail appearanceforms a puzzle which never fails to No. 22. A bench project. This may be a complete boxor chest with butts and lock, a table, a model of a roof-truss, astep-ladder, or any other article which will not absorb too muchtime, and which shall call into play the processes learned. Thechest should be made as a box completely closed, and then besawed open. The operations of nailing (using different sizes), clinching,withdrawing nails, screwing, pinning, wedging, splicing, keying,etc., should be taught by appropriate exercises. SUGGESTIONS. It will be found an excellent plan to give all the boys permis-sion occasionally to make what they like, and to carry away theproducts. In such cases each should submit a scale drawing(figured) of his proposed article, and should furnish the mate-rial for the same. The teacher however should endorse noloose plan, nor permit attempts on too complicated work. Andhere let me -caution both teachers and pupils against ambitious 50 FIRST YEAR OF MANUAL TRAINING SCHOOL. [Chap. H. undertakings. There
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Keywords: ., bookcentury1900, bookdecade1900, booksubjectmanualt, bookyear1906
