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 1020
^o|| / I —i— … Fig. 14. Vault size 5 to be used on runs of 9conduit when not intersected.Fig. 15. Vault size 6 to be used on runs of 9 to 12duit when intersected. to 12. Ducts ofDucts of con- ducts in non-intersected vaults. The supports shall not be nearerthan 1 ft. from the end of the conduit and shall be…
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