Handbook of construction plant, its cost and efficiency (1914)
Dana, Richard Turner, 1876-1928 · Chicago, The M. C. Clark Publishing Co. · leaf 230
18.2 21.6 39.8 II. ANALYSIS OF WORKING TIME September, 1910. Hrs. Mins. Pet. Total available time 600 .. .... Dredge worked 381 20 63 V> Delays 218 40 36y2 DREDGES Causes of Delays: Hrs. Weather 57 Short pipe 31 Suction pipe, pumping and plug 11 Pontoon line 31 Swinging cables 15 Main engine 24… … sate^KSirf Fig. View of 30-in. Hydraulic Dredge Francis T. Sim-mons in Operation in Lake Michigan. COST OF OPERATION AND REPAIRS OF DREDGE, 1910;TOTAL TIME IN COMMISSION, 4,320 HOURS Operation. Totals. Labor $13,855.45 Fuel 17,000.35 Supplies, tools, sleeves, oil, etc 4,323.52 Commissary labor and…
Contractors' operations · Building
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