Handbook of construction plant, its cost and efficiency (1918)
Dana, Richard Turner, 1876-1928 · New York, McGraw-Hill book company, inc., [etc., etc.] · leaf 229
. ANALYSIS OF WORKING TIME September, 1910. Hrs. Mins. Pet. Total available time 600 .. Dredge worked 381 20 63% Delays 218 40 36% DREDGES 225 Causes of Delays: Hrs. Mins. Pet. Weather 57 Short pipe 31 Suction pipe, pumping and plug 11 Pontoon line 31 Swinging cables 15 Main engine 24 Spud engine… … Fig, 84. View of 30-in. Hydraulic Dredge Francis T. Sim-mons in Operation in Lake Michigan. III. COST OF OPERATION AND REPAIRS OF DREDGE, 1910;TOTALtime in COMMISSION, 4,320 HOURS Operation. Totals. Labor $13,855.45 Fuel 17,000.35 Supplies, tools, sleeves, oil, etc 4,323.52 Commissarj- labor and…
Contractors' operations · Building
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