. The railroad and engineering journal . fail tomake bars coming up to the required specifications, theEngineer may order bars of 20 per cent, larger sectionthan the plans call for, to be furnished by the contractorwithout charge for the increased weight. MACHINE WORK. The bearing surfaces in the top chord shall be trulyfaced. The ends of the stringers and of the floor-beamsshall be squared in a rotary facer. All surfaces so desig-nated on the plans shall be planed. All pins shall be accurately turned to a gauge, and shallbe of full size throughout; pin-holes shall be bored to fitthe pins, wii
. The railroad and engineering journal . fail tomake bars coming up to the required specifications, theEngineer may order bars of 20 per cent, larger sectionthan the plans call for, to be furnished by the contractorwithout charge for the increased weight. MACHINE WORK. The bearing surfaces in the top chord shall be trulyfaced. The ends of the stringers and of the floor-beamsshall be squared in a rotary facer. All surfaces so desig-nated on the plans shall be planed. All pins shall be accurately turned to a gauge, and shallbe of full size throughout; pin-holes shall be bored to fitthe pins, wii h a play not exceeding in. These clausesapply to all lateral connections as well as to those of themain trusses. Pins shall be supplied with pilot nuts foruse during erection, four for each size of pin. All screws shall have a truncated V-thread. UnitedStates standard. MISCELLANEOUS. All workmanship and material, whether particularlyspecified or not, must be of the best kind now in use in Vol. LXI, No. 9.] ENGINEERING JOURNAL. 406. fi m:i
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Keywords: ., bookcentury1800, bookdecade1880, booksubjectrailroa, bookyear1887
