Silver and Gold: An Account of the Mining and Metallurgical Industries of the United States |
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Halaman 35
... furnace frequently requires a large outlay of money in the construction of a wagon - road or tramway , and a consequent expense in the hauling and transportation of ores , which prevent the profitable working of mines so situated . In ...
... furnace frequently requires a large outlay of money in the construction of a wagon - road or tramway , and a consequent expense in the hauling and transportation of ores , which prevent the profitable working of mines so situated . In ...
Halaman 39
... furnace . This apparatus was patented during the year by Mr. Stephen S. Ambler , of Monitor , Alpine County , California . It has not yet been successfully put in practice , though several furnaces of the kind are reported as in course ...
... furnace . This apparatus was patented during the year by Mr. Stephen S. Ambler , of Monitor , Alpine County , California . It has not yet been successfully put in practice , though several furnaces of the kind are reported as in course ...
Halaman 40
... Furnace . when desirable , pass through the flue , g . A blast pipe , h , enters the chamber , F , at about an equal height with the flue , g , while a branch- pipe , i , passes to the front and enters the chamber , E , so as to deliver ...
... Furnace . when desirable , pass through the flue , g . A blast pipe , h , enters the chamber , F , at about an equal height with the flue , g , while a branch- pipe , i , passes to the front and enters the chamber , E , so as to deliver ...
Halaman 93
... furnace for roasting or chloridizing the ores , which is rather experimental , everything is first class . The machinery is run by water , and a turbine wheel is used . The power is ample for the reduction of 75 tons per day , which ...
... furnace for roasting or chloridizing the ores , which is rather experimental , everything is first class . The machinery is run by water , and a turbine wheel is used . The power is ample for the reduction of 75 tons per day , which ...
Halaman 167
... furnaces used are White's rotary cylinders , a furnace very similar to the Brückner cylinder in operation in Colorado . The Mettacom Mill has been put in working order , and also fitted with a White's furnace , by the Pacific Mining Com ...
... furnaces used are White's rotary cylinders , a furnace very similar to the Brückner cylinder in operation in Colorado . The Mettacom Mill has been put in working order , and also fitted with a White's furnace , by the Pacific Mining Com ...
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50 feet amalgam amount antimony arrastra assay average Bannack base bullion bed-rock bullion Calaveras County California Cañon carbonate cent chemical claim coal commenced company's contains copper cost County course Creek Cupellation December deposits depth developed district ditch drift drill east El Dorado County engine erected Eureka expense extracted feet deep feet in length feet long feet wide furnace galena gangue gold Gold Hill gravel ground Gulch Hill hundred hydraulic inches incline iron labor lead ledge limestone located lode metallurgy metals miles mill miners Mining Company months nearly Nevada opened operations ounces owners placer mines pounds present Professor prospecting quantity quartz quartzite rich River rock San Francisco silver slag slate smelting smelting-works stamps stopes sulphurets sunk supply surface Table Mountain tailings thick tion tons Total tunnel Tuolumne County tuyeres Valley vein width yield