Worthen, William Ezra, 1819-1897, [from old catalog] ed · New York, Appleton · leaf 408
Fig. 919. Fig. 920. … Fig. 922. to the diameter of the screwed part, and the inside or locked nut three fourths of this thickness. The plates are stiffened by inside and outside washers. If the stay is diagonal it is usual to increase its area in the, proportion of the length of the diagonal to that of the horizontal.…
Mechanical drawing
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