Lukin, James. [from old catalog] · New York, G. P. Putnam's sons · leaf 178
a true tie, and a rod ofthis metal will bear an enormous strain without stretchingor breaking, if thus applied in the direction of itslength. OUR HOUSE. 167 This tie-rod or tie-beam will thus effectually hold to-gether the lower ends of the rafters, and any weight nowapplied will merely press… … Fig. x6.—Boof Construction. angles to AC, and here a tie-rod is of no use. We there-fore need an abutment for such strut somewhere atits lower end about the point D. Now if BC is a rod ofiron, and we rest the end of sucb strut upon it, it willtend, of course, to make it bend or sag downwards, and a…
Handicraft · Steam-engines
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