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" The quantity of water used per stamphead in crushing varies from 720 gallons to 11,520 gallons per diem of 24 hours. The quantity of mercury used in the ripples per stamper is from 5 to 70 pounds. "
Statistics of Mines and Mining in the States and Territories West of the ... - Stran 653
avtor: Rossiter Worthington Raymond - 1870
Celotni ogled - O knjigi

Mineral Statistics of Victoria for the Year ...

1867 - 398 strani
...minute is from 35 to 80. The quantity of quartz crushed per head per diem of 24 hours varies f rum 1 ton to 4 tons. The number of holes per square inch in the gratings used is from 64 to 160. The horse-power required to work each stamper is from 0'5 to 2. The quantity of water used...
Celotni ogled - O knjigi

Mineral Statistics of Victoria for the Year ...

1875 - 458 strani
...is from 54 to 80. The quantity of quartz crushed per head per diem of 24 hours varies from 16 cwt. to 4 tons. The number of holes per square inch in the gratings is from 80 to 180. The horse-power required to work each stamper is from 1 to 2. The quantity of water...
Celotni ogled - O knjigi

Mineral Statistics of Victoria for the Year ...

1883 - 586 strani
...to 10 inches. The number of strokes made per minute is from 60 to 75. The quantity of quartz crushed per head per diem of 24 hours varies from 1 ton to 2 tons. The nvmber of holes per square inch in the gratings used is from 120 to 356. The quantity of...
Celotni ogled - O knjigi

The Gold Fields and Mineral Districts of Victoria: With Notes on the Modes ...

Robert Brough Smyth - 1869 - 712 strani
...thirty-five to eighty. The quantity of quartz crushed per head per diem of twenty-four hours varies from I ton to 4 tons. The number of holes per square inch in the gratings used is from 64 to 1 60. The horse-power required to work each stamper is from 0-5 to 2. The quantity of water used...
Celotni ogled - O knjigi

The Production of the Precious Metals: Or, Statistical Notices of the ...

William Phipps Blake - 1869 - 400 strani
...is from 40 to 90. The quantity crushed per head per diem of 14 hours ranges from 16 hundred weight to 4 tons. The number of holes per square inch in the gratings used is from 60 to 140. The horse-power required to work each stamp-head is from 0.75 to 1.50. The quantity of water...
Celotni ogled - O knjigi

Reports Upon the Precious Metals: Being Statistical Notices of the Principal ...

William Phipps Blake - 1869 - 388 strani
...is from 40 to 90. The quantity crushed per head per diem of 14 hours ranges from 16 hundred weight to 4 tons. The number of holes per square inch in the gratings used is from 60 to 140. The horse-power required to work each stamp-head is from 0.75 to 1.50. The quantity of water...
Celotni ogled - O knjigi

The Production of the Precious Metals: Or, Statistical Notices of the ...

William Phipps Blake - 1869 - 400 strani
...is from 40 to 90. The quantity crushed per head per diem of 14 hours ranges from 16 hundred weight to 4 tons. The number of holes per square inch in the gratings used is from 60 to 140. The horse-power required to work each stamp-head is from 0.75 to 1.50. The quantity of water...
Celotni ogled - O knjigi

The Gold Fields and Mineral Districts of Victoria: With Notes on the Modes ...

Robert Brough Smyth - 1869 - 694 strani
...quantity of quartz crushed per head per diem of twenty-four hours varies from 18 cwt. to 3 tons 10 cwt. The number of holes per square inch in the gratings used is from 40 to 224. (The latter number is made use of by the New North Chmes Company, at Clunes.) The horse-power...
Celotni ogled - O knjigi

The Production of the Precious Metals: Or, Statistical Notices of the ...

William Phipps Blake - 1869 - 412 strani
...of quartz crushed per head per diem of 24 hours ranges from 18 hundred weight to 3 tons 3 quarters. The number of holes per square inch in the gratings used is from 64 to 140. The horse-power required to work each stamp-head is from 0.66 to 2. The quantity of water...
Celotni ogled - O knjigi

Reports, ed. by W.P. Blake, Količina 2

United States commission to the Paris expos, 1867 - 1870 - 792 strani
...is from 40 to 90. The quantity crushed per head per diem of 14 hours ranges from 10 hundred weight to 4 tons. The number of holes per square inch in the gratings used is from GO to 140. The horse-power required to work each stamp-head is from 0.75 to 1.50. The quantity of water...
Celotni ogled - O knjigi




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