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 1458
nto newterritory. Prevention of Heat Loss. The installation, employed to protectthe steam mains and prevent loss of heat, was the type which hasgiven the best results, and is now in general use all over the coun-try in district steam heating systems. Tests have shown that theloss from condensation… … Fig. 4, Cross section of steam mains. were made with heavy long pattern couplings. The iron pipe waswrapped with a double spiral winding of asbestos paper, secured inposition with copper wire. The pipe thus covered was encased inwood stave casing, the inside diameter of which was from 2 to 3ins.…
