Mining Engineers' Handbook, Volume 2Robert Peele, John Adams Church J. Wiley & sons, Incorporated, 1941 |
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Hasil 1-3 dari 79
Halaman 17-60
... obtained for 10 ¢ each from office of US Geological Survey , Washington , D C. On these maps , a paper reconnaissance can be made in the office , probable grades and alinement can be studied , and a very good general idea obtained ...
... obtained for 10 ¢ each from office of US Geological Survey , Washington , D C. On these maps , a paper reconnaissance can be made in the office , probable grades and alinement can be studied , and a very good general idea obtained ...
Halaman 24-32
... obtained for 1 or 5 years at $ 10 per annum , with right of renewal upon payment of fee and performance of work to value of $ 200 per annum . Provisions are made for granting rights to divert water for mining purposes . Royalty of 2.5 ...
... obtained for 1 or 5 years at $ 10 per annum , with right of renewal upon payment of fee and performance of work to value of $ 200 per annum . Provisions are made for granting rights to divert water for mining purposes . Royalty of 2.5 ...
Halaman 39-4
... obtained algebraically in a similar manner to the work , or experi- mentally by the indicator . Indicated horsepower ( I HP ) is the power developed in the cylinder of a machine , and is so named since it is usually obtained by the ...
... obtained algebraically in a similar manner to the work , or experi- mentally by the indicator . Indicated horsepower ( I HP ) is the power developed in the cylinder of a machine , and is so named since it is usually obtained by the ...
Isi
AND SORTING OF ORES | 15 |
ELECTRIC POWER | 16-1 |
sion Wiring | 19-1 |
Hak Cipta | |
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adjustment Aerial Tramway anthracite approx assay aver borax buckets Bur Mines capac carriers cars charge chute claim coal mines compressor concentrate conveyer copper cost crusher crushing cu ft cupel cyanide deflection diam discharge distance drill dust elev engineer explosions feed filter fire firedamp gold grade hoisting horiz intercooler labor lamp less litharge loaders loading lode long ton machine material mechanical metal method mill mineral motor operation pipe plant plate plumb-bob pump pyrite rock safety lamps sample screen shaft sheave short ton side silver sizes Sodium carbonate solution speed station steel stopes surface survey Table tape telescope temp tension tests timber tion tons Total towers track cable traction rope tramway Trans transit traverse underground usually valve vein vertical wire zinc