Kidder, Frank E. (Frank Eugene), 1859-1905 · New York, Comstock · leaf 147
beams or needlesplaced in holes cut through it and supported at each end by posts,jackscrews or grillage. At least one end of each horizontal beamshould be supported by a jackscrew. Wherever a long stretch of wall is to be built up at one time, andthere is working space on each side of it, needling… … Jack-screw ^New Footing XEEDLIXG .L\D UXDIiRFIXMXG. 121 Tn very heavy buildings steel beams should be us(?d for the needles,and they should be si)aced not more than 2 feet apart. In three-or four-storv buildings the needles may be of larc^e timbers spaeedfrom 4 to 6 feet apart. Each chimney or…
Building · Carpentry · Masonry
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