Chicago : Engineering and Contracting Pub. Co. · leaf 647
r is used for the 130 welldrills and the tripod drills in the CulebraCut. Water is supplied to the steam shovels,of which there are about 50, and for thisair and water service there are two systems TIME MUST BE HEAD IN MINUTES 2019181 1G= 15dll in 12§11 lio VALUfcb ur V M IN a A VG MAX. NO 1 42 3… … 0 10 20 TIME TO LOAD 1 CU.l 30 40 60, PLACE MEASURE WITH 60 70 80 90 100DIPPER WORKING FREELY IN SECONDS Fig. 5.— Diagram for Use With (Values of g shown graphically. Read average value is given as 0.53. Therefore,2% X 0.53 = 1.2 cu. yds. per swing or 2.88cu. yds. per minute or 0.35 minute per cu.…
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