Worthen, William Ezra, 1819-1897, [from old catalog] ed · New York, Appleton · leaf 249
Fig. 438. Fig. 439. Fig. 440. constructions liable to varying loads and shocks.Phoenix column. Fig. 440 of the Keystone. Fig. 439 shows the section of a TABLE OF PHCENIX COLUMNS. MAEK OF COLUMN. Thickness ininches. Area in squareinches. Weight in poundsper foot. Internal diam-eter. A t A- ifi if…
Mechanical drawing
Internet Archive · Library of Congress · Public Domain Mark 1.0. Free to use for anything.
![An illustration from [Electric engineering.] (1902)](https://img.insideoutlibrary.com/img/200/ia-electricengineer04inte-428-198.webp)
