Worthen, William Ezra, 1819-1897, [from old catalog] ed · New York, Appleton · leaf 262
separator, is inserted between the beams, and two bolts,through them and the block, add lateral strength. The bolt-holes, placed atsome distance from the centre of the span, do not reduce the transverse strength.To strengthen an I-beam or box-girder composed of I-beams, rivetplates on the top and…
Mechanical drawing
Internet Archive · Library of Congress · Public Domain Mark 1.0. Free to use for anything.
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