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 (1863)
Armengaud, aîné (Jacques-Eugène), 1810-1891, Armengaud, Charles A., 1813-1893, Amouroux, Jules, Johnson, William, 1823-1864 · Philadelphia : H.C. Baird · leaf 174
ges—economy in ma-nufacture, simplicity and effective ven-tilation, increased production of meal,and a saving of labour in repairs. Fig.4 is a vertical section of the stone, andfig. 5 is a corresponding plan. Theeye, a, is made excessively large inproportion to the stones diameter, ex-ceeding,… … 1GG THE PRACTICAL DRAUGHTSMANS 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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