Worthen, William Ezra, 1819-1897, [from old catalog] ed · New York, Appleton · leaf 288
Fig. 591. Fig. 594. The load is from 50 to 75 pounds per square inch. The fibres of the wood areplaced vertically, and afford an excellent bearing surface. Water is sometimesintroduced into the centre of the wood, or into a box around it, from the upperlevel of w^ater. When cast-iron or steel is…
Mechanical drawing
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