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 257
ISO PLATE XXIX. … DRAWING OF MACHINEEY. 189 ticular example, formed in a single piece, and wliicli can be applied onlywhen tlie shaft to wliicli it is to be attached is straight and nninterruptedby cranks, &c. Tlie mode of representing the arm in fig. 9, which is asection on the line D P, is not strictly…