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. 127. No. 3. (Fig. 128.) Right- and left-handed screw. Stocksame as Nos. 1 and 2. The central groove is cut and the endsare turned down before the threads are cut. There are ten. Fig. 128. V-threads to the inch. It must be borne in mind that all thecutting-tools except the files and drills are made and kept inorder by the students themselves. Chap. IV.] MA CHINE- TO OL EXER CISES. 145 Ko. 4. (Fig. 129.) Finished handle. Stock If, roundiron
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. 127. No. 3. (Fig. 128.) Right- and left-handed screw. Stocksame as Nos. 1 and 2. The central groove is cut and the endsare turned down before the threads are cut. There are ten. Fig. 128. V-threads to the inch. It must be borne in mind that all thecutting-tools except the files and drills are made and kept inorder by the students themselves. Chap. IV.] MA CHINE- TO OL EXER CISES. 145 Ko. 4. (Fig. 129.) Finished handle. Stock If, roundiron, 4| long. The handle is approximately formed and thethread is cut in the engine lathe. In the speed lathe, by the useofliand tools, the free outline of the handle is obtained, and then
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Keywords: ., bookcentury1900, bookdecade1900, booksubjectmanualt, bookyear1906
