Statistics of Mines and Mining in the States and Territories West of the Rocky Mountains, Količina 2U.S. Government Printing Office, 1870 |
Iz vsebine knjige
Zadetki 1–5 od 100
Stran 44
... cylinder , with rakes , stirs the mass in a bed of mercury . The skimmings of the amalgamating boxes are treated in ... cylinders covered with amalgamated copper plates , which are moved horizontally by vibrating arms ; thence through ...
... cylinder , with rakes , stirs the mass in a bed of mercury . The skimmings of the amalgamating boxes are treated in ... cylinders covered with amalgamated copper plates , which are moved horizontally by vibrating arms ; thence through ...
Stran 176
... cylinder , horizontal - working steam - engine , which works the stamps , pans , set- tlers , and blowers , ( 250 revolutions . ) It is also used to run a circular saw , with which the company saw all their mining and building timbers ...
... cylinder , horizontal - working steam - engine , which works the stamps , pans , set- tlers , and blowers , ( 250 revolutions . ) It is also used to run a circular saw , with which the company saw all their mining and building timbers ...
Stran 276
... cylinder . It cost , all told , about $ 75,000 , currency , and is considered the best mill in the Territory . It is situated in Flint Creek district , which first became generally known in the winter of 1866. The district seems to be a ...
... cylinder . It cost , all told , about $ 75,000 , currency , and is considered the best mill in the Territory . It is situated in Flint Creek district , which first became generally known in the winter of 1866. The district seems to be a ...
Stran 350
... cylinders and heave machinery , and costly foundations , and dams , and flumes , cannot be so transplanted . The owners of such works are therefore situated in some degree as was the Atlantic Telegraph Company when the new cable first ...
... cylinders and heave machinery , and costly foundations , and dams , and flumes , cannot be so transplanted . The owners of such works are therefore situated in some degree as was the Atlantic Telegraph Company when the new cable first ...
Stran 356
... cylinder of boiler - iron , which revolved on a hollow shaft , perforated with holes for the admission of air . A condensing chamber , connected with the fur nace , served to catch the fine dust carried off by the draught , and also ...
... cylinder of boiler - iron , which revolved on a hollow shaft , perforated with holes for the admission of air . A condensing chamber , connected with the fur nace , served to catch the fine dust carried off by the draught , and also ...
Druge izdaje - Prikaži vse
Pogosti izrazi in povedi
Alpine County amalgamation amount apparatus arrastras assay average Bannack battery bottom bullion cable California Cañon Cañon City cents chloride claims coal Comstock lode contains copper cost country rock County Creek crushing cylinder deposits depth diameter ditch dollars drift drill east engine explosion extension feet deep feet wide fissure five furnace galena giant powder gold granite Grass Valley gravel Gulch hoisting hole horse-power hundred feet inches iron iron pyrites July labor ledge length lode machine metal metres miles mill miners Mining Company mining district Mountains Nevada opened operations owners patent Pinos Altos piston placer mining pounds pump pyrites quantity quartz quicksilver railroad Reese River reported rich roasting rock running shaft side silver slate smelting stamps steam sulphurets surface Territory tion tons Treasure Hill trepan tunnel Valley valve vein vertical weight White Pine width yield
Priljubljeni odlomki
Stran 425 - That whenever any person or association of persons claim a vein or lode of quartz, or other rock in place, bearing gold, silver, cinnabar, or copper...
Stran 425 - That no location hereafter made shall exceed two hundred feet in length along the vein for each locator, with an additional claim for discovery to the discoverer of the lode, with the right to follow such vein to any depth with all its dips, variations, and angles, together with a reasonable quantity of surface for the convenient working of the same, as fixed* by local rules.
Stran 327 - He never reached his home, however, and was supposed to have been killed by the Indians. Thirteen years elapsed, when a party of forty men arrived here. They prospected the whole length of the Sweetwater, found gold everywhere in the river as well as in all of its tributaries, and turned the main stream from its channel 400 yards.
Stran 425 - ... enter such tract and receive a patent therefor, granting such mine, together with the right to follow such vein or lode with its dips, angles, and variations to any depth, although it may enter the land adjoining, which land adjoining shall be sold subject to this condition.
Stran 425 - All valuable mineral deposits in lands belonging to the United States, both surveyed and unsurveyed, are hereby declared to be free and open to exploration and purchase, and the lands in which they are found to occupation and purchase, by citizens of the United States...
Stran 425 - That the mineral lands of the public domain, both surveyed and unsurveyed, are hereby declared to be free and open to exploration and occupation by all citizens of the United States, and those who have declared their intention to become citizens, subject to such regulations as may be prescribed by law, and subject also to the local customs or rules of miners in the several mining districts, so far as the same may not be in conflict with the laws of the United States.
Stran 327 - Gold in the Sweetwater District was first discovered in 1842 by a Georgian who came here with the American Fur Company for the recovery of his health. After remaining a year he started home, intending to organize a company and bring them here to work the mines.
Stran 425 - ... file in the local land office a diagram of the same, so extended laterally or otherwise as to conform to the local laws, customs, and rules of miners, and to enter such tract and receive a patent therefor, granting such mine...
Stran 627 - Each size will break any stone, one end of which can be entered into the opening between the jaws at the top. The size of the machine is designated by the size of this opening; thus, if the width of the jaws be 15 inches, and the distance between them at the top 9 inches, the size is called 15 by 9.
Stran 653 - 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.