Handbook of mechanical and electrical cost data, giving shipping weights, capacities, outputs, and net prices of machines and apparatus, and detailed costs of installation, maintenance, depreciation and operation, together with many principles and data relating to engineering economics (1918)
Gillette, Halbert Powers, 1869-, Dana, Richard Turner, 1876-1928, joint author · New York, McGraw-Hill · leaf 924
el 600.0 Concrete, 237 cu. ft., weight 3,030.0 Approximate weight of pole 3,630.0 Surface area of steel 14,176 sq. in. Base area of steel 5,375 sq. in. BILL OF MATERIAL, 32 FT. POLE Item Lbs. 12 pes. %-in. x 30-ft. twisted steel bar 172.0 8 pes. %-in. X 20 ft. twisted steel bar 76.6 8 pes. %-in. X… … Crois5echo/7 af Ground £^nci-Conrr Copper PJa^e Fig. 8, Concrete trolley pole. 901 902 MECHANICAL AND ELECTRICAL COST DATA BILL OF MATERIAL, 30 FT. POLE Item Lbs. 4 pes, i/^-in. X 30-ft. twisted steel bar 102.0 12 pes. %-in. X 20 ft. twisted steel bar 114.7 8 pes, %-in. x 10-ft. twisted steel bar…
