Appleton's cyclopædia of drawing, designed as a textbook for the mechanic, architect, engineer, and surveyor (1866)
Worthen, William Ezra, 1819-1897, [from old catalog] ed, Appleton, firm, publishers, New York. (1866. D. Appleton & co.) [from old catalog] · New York, D. Appleton and company · leaf 178
gs. 1, 2, 4, and 6. Fig. 227 represents the sec- rtion of a portion of a water-wheel,with a cast iron shaft, in use inthis country, in which stiffness isgiven to the wheel by woodentrusses, and a tensional strain isgiven to the centre of the shaft.Tliese shafts are cast circular intwo lencrths… … 140 DRAWING OF MACHINEEY. portioned to the weight it will be required to support, which will be in-versely as their distance from the centre of pressure. Fig. 228 represents the fly-wheel shaft of a stationary engine. Theparts of least diameter are the journals; their length is 1^ times the diam-…
