Worthen, William Ezra, 1819-1897, [from old catalog] ed · New York, Appleton · leaf 586
eams apply also to Channels.All holes for % Bolts or Rivets.Fig. 1370. iron is liable to rust in position where it can not be seen, but it is met by care incleansing the iron, in boiling in oil and painting, or by the Smith process usedin protecting cast-iron pipes, and, second, the want of… … sions required by the Building Depart-ment of New York city for the skeletonconstruction and for plain walls with-out it. If the wall construction followspromptly that of the steel frame, andit is temporarily held by tie rods, amortar set will be secured which willresist the usual wind stresses.…
Mechanical drawing
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