Mineral Resources of the United States, Parte1U.S. Government Printing Office, 1913 |
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Página 394
... crusher , which reduces it to 4 inches , thence by belt conveyor to the crusher house and jig room , both equipped with machinery of the straight Joplin type , with the excep- tion of a single bull jig . Either side of the crusher house ...
... crusher , which reduces it to 4 inches , thence by belt conveyor to the crusher house and jig room , both equipped with machinery of the straight Joplin type , with the excep- tion of a single bull jig . Either side of the crusher house ...
Página 433
... crushers , rolls , jigs , and tables . A locomotive crane was added in 1912. The mine is worked by open cuts and by 4 shafts with a maximum depth of 70 feet . Knox County . The old Holston property , near Mascot , in Knox County , has ...
... crushers , rolls , jigs , and tables . A locomotive crane was added in 1912. The mine is worked by open cuts and by 4 shafts with a maximum depth of 70 feet . Knox County . The old Holston property , near Mascot , in Knox County , has ...
Página 482
... crusher , jigs , and slime table in the latter part of the year . Aurora district . - The production of this district in 1912 showed a decrease when compared with that of 1911 of 40 tons of lead concen- trates and of 2,360 tons of ...
... crusher , jigs , and slime table in the latter part of the year . Aurora district . - The production of this district in 1912 showed a decrease when compared with that of 1911 of 40 tons of lead concen- trates and of 2,360 tons of ...
Página 515
... crusher and hand jigs , by means of which a good output of zinc carbonate concentrates was made . Other producing mines in 1912 were F. Horsley & Co. , Keenan Bros. , McCabe Mining Co. , and the Garden City Mining Co. Cuba City - Elmo ...
... crusher and hand jigs , by means of which a good output of zinc carbonate concentrates was made . Other producing mines in 1912 were F. Horsley & Co. , Keenan Bros. , McCabe Mining Co. , and the Garden City Mining Co. Cuba City - Elmo ...
Página 562
... crusher and rolls and wet concentration over Wilfley , Card , and Isabel tables and Johnson vanners . Most of the ore used was from the Old Reliable claim , and other ore came from the Cumberland , American Eagle , and Silver Reef ...
... crusher and rolls and wet concentration over Wilfley , Card , and Isabel tables and Johnson vanners . Most of the ore used was from the Old Reliable claim , and other ore came from the Cumberland , American Eagle , and Silver Reef ...
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Términos y frases comunes
1912 were valued Alaska amounted Arizona barrels base bullion bullion California carbonate cement chalcocite clay products coal coke Colorado compared concentrating plant County crude decrease deposits district domestic exports feet furnaces galena gold and silver hematite Idaho imports for consumption included under Miscellaneous increased industry Lake Superior lead and zinc lead concentrates lime limestone lode long tons magnetite manganese manganiferous manufacture metals Mexico Michigan mill mineral products mineral waters mines Missouri Montana Nevada North Carolina operated ounces in 1911 ounces of silver outcrop oxide Pennsylvania pig iron Pima County placers pounds of copper principal production in 1912 production of copper production of gold production of lead pyrite Quan quantity quarry ranks recovered recovery refined reported rock sand and gravel shaft shipped short tons smelter smelting sold South sphalerite spiegeleisen stone sulphide sulphur Tennessee tity tonnage total output total production total value United States Geological Utah Wisconsin yielded zinc concentrates
Pasajes populares
Página 361 - ... bonded warehouses or otherwise. On the arrival of the ores at such establishments they shall be sampled according to commercial methods under the supervision of Government officers, who shall be stationed at such establishments, and who shall submit the samples thus obtained to a Government assayer, designated by the Secretary of the Treasury, who shall make a proper assay of the sample, and report the result to the proper customs officers, and the import entries shall be liquidated thereon,...
Página 405 - Provided, That on all importations of lead-bearing ores the duties shall be estimated at the port of entry, and a bond given in double the amount of such estimated duties for the transportation of the ores by common carriers bonded for the transportation of appraised or unappraised merchandise to properly equipped sampling or smelting establishments, whether designated as bonded warehouses or otherwise. On the arrival of the ores at...
Página 363 - Lead dross, lead bullion or base bullion, lead in pigs and bars, lead! in any form not specially provided for in this...
Página 406 - Provided further, That all labor performed and services rendered pursuant to this section shall be under the supervision of an officer of the customs, to be appointed by the Secretary of the Treasury, and at the expense of the manufacturer...
Página 405 - That the works of manufacturers engaged in smelting or refining, or both, of ores and crude metals, may upon the giving of satisfactory bonds be designated as bonded smelting warehouses. Ores or crude metals may be removed from the vessel or other vehicle in which imported, or from a bonded warehouse, into a bonded smelting warehouse without the payment of duties thereon and there smelted or refined, or both, together with ores or crude metals...
Página 363 - Lead, acetate of, white, and nitrate of, 1J cents per pound; acetate of, brown, gray, or yellow, 1 cent per pound; all other lead compounds not specially provided for in this section, 20 per centum ad valorem.
Página 405 - Zinc in blocks or pigs and zinc dust, one and three-eighths cents per pound; In sheets, one and five-eighths cents per pound; In sheets coated or plated with nickel or other metal or solutions, one and three-fourths cents per pound ; old and worn-out, fit only to be remanufactured, one cent per pound.
Página 473 - In comparing the values of ore and metal it should be borne in mind that the value given for the ore is that actually received by the producer, whereas the value of the lead is calculated from the average daily quotations at New York.
Página 296 - No. 185, which may be obtained on application to the Director of the United States Geological Survey, Washington, DC...
Página 405 - And provided further, That the said metals so producible, or any portion thereof, may be withdrawn for domestic consumption, or transferred to a bonded customs warehouse, and withdrawn therefrom, and the several charges against the bonds canceled upon the payment of the duties chargeable against an equivalent...