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allowance for impact approval bearing Bed Plates Cast Iron cent center to center Centrifugal Force Chief Engineer compression members curve dead load deck plate girder depth diameter Douglas fir drilled dynamic effect edges elongation exceed eye bars f inch flange angles flange plates floor beams foot of track girders or trusses Gusset highway bridges impact or dynamic inch 1 inch inch thick inspector letter of invitation lineal foot Linseed Oil live load masonry material maximum stress nuts one-half inch paint pin holes pine planed pounds per lineal pounds per square proportioned Punching and Reaming radius of gyration Railroad Company Rivet holes riveted trusses rolled Rollers Screw Threads sheared Solid Floors specified in paragraph Spherical Bearings spliced square inch stresses due structural steel struts surfaces sway bracing Swing Bridges tensile strength Timber top chord top flange transverse truss bridges Turn Tables unit stresses wheels width workmanship Yield Point
Page 46 - Specimens shall be cut cold from coupons molded and cast on some portion of one or more castings from each melt or from the sink heads, if the heads are of sufficient size. The coupon or sink head, so used, shall be annealed with the casting before it is cut off.
Page 44 - For all plates ordered to gauge there will be permitted an average excess of weight over that corresponding to the dimensions on the order equal in amount to that specified in the following table: TABLE OF ALLOWANCES FOR OVER-WEIGHT FOR RECTANGULAR PLATES WHEN ORDERED TO GAUGE.
Page 43 - ... per cent. below the theoretical weight; when 100 inches wide and over, 5 per cent. above or 5 per cent. below the theoretical weight.
Page 44 - Every finished piece of steel shall be stamped with the melt number. Rivet steel may be shipped in bundles securely wired together, with the melt number on a metal tag attached.
Page 36 - At the ends of compression members the pitch shall not exceed four diameters of the rivet, for a length equal to twice the width of the member.
Page 46 - For the purposes of this specification the yield point shall be determined by the careful observation of the drop of the beam or halt in the gauge of the testing machine.
Page 45 - A test to destruction may be substituted for the tensile test, in the case of small or unimportant castings, by selecting three Drop castings from a lot.
Page 41 - ... in thickness, the following modifications shall be made in the requirements for elongation : (a). For each increase of one-eighth inch (1/8") in thickness above three-fourths inch (3/4"), a deduction of one per cent.