The practical draughtsman's book of industrial design, and machinist's and engineer's drawing companion; forming a complete course of mechanical, engineering, and architectural drawing (1871)
Armengaud, Charles A., 1813-1893, Armengaud, Charles, 1813-1893, [from old catalog] joint author, Amouroux, Jules, [from old catalog] joint author, Johnson, William, 1823-1864. [from old catalog] · Philadelphia, H. C. Baird · leaf 176
-nufacture, simplicity and cflectivc ven-tilation, increased production of meal,and a saving of labour in repairs. Fig.4 is a vertical stctioii of the stone, andfig. 6 is a corresponding plan. The eye, A, is mado excessively largo inproportion to the stoncAs dianulcr, ex-ceeding, indeed, half… … 166 THE PRACTICAL DRAUGHTSMANS Fie. 6. between the working surfaces by the action of the centrifugalforce. Besides, the increased circumferential length of the eyeadmits of the formation of three or four times the ordinary numberof leading furrows, for the distribution of the air over the…
Mechanical drawing
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