Worthen, William Ezra, 1819-1897, [from old catalog] ed · New York, Appleton · leaf 270
Fig. 527. Fig. 528. Fig. 529. between the threads wide as the thread, making it of easier introduction intothe wood, and retaining as much strength in the iron as in the wood. Fig. 527 is a stud-\iQ\i^ which is screwed firmly into one of the pieces ofconnected metal; the other is bored so as to…
Mechanical drawing
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