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 1022
,. ...-..,.- ,.! I* J I 3z3x% T.SSlb.TB 1 r~T S.\, VX … 19 20 Fig. 19. Vault size 11, used for installing 8 loading pots on conduitruns when not intersected. Fig. 20. Vault size 12, used for installing 6 to 8 loading pots onconduit runs when intersected. strengthened by .375-in. x 3 x 3-in. T-iron or other equivalent rein-forcing irons, placed…
