Silver and Gold: An Account of the Mining and Metallurgical Industry of the United States, with Reference Chiefly to the Precious MetalsJ. B. Ford, 1873 - 566 halaman |
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Halaman 35
... engine attached to a grip- pulley . The function of the grip - pulleys is to hold the rope so as to prevent its slipping in the groove . In general , the difference in altitude between the mill and the mine is sufficient to obtain by ...
... engine attached to a grip- pulley . The function of the grip - pulleys is to hold the rope so as to prevent its slipping in the groove . In general , the difference in altitude between the mill and the mine is sufficient to obtain by ...
Halaman 36
... engine at one end by means of the grip - pulley ; in the first case , often no extra power will be needed , the gravity of the descending loads being sufficient to keep the rope in motion . Similar inventions have been made before , and ...
... engine at one end by means of the grip - pulley ; in the first case , often no extra power will be needed , the gravity of the descending loads being sufficient to keep the rope in motion . Similar inventions have been made before , and ...
Halaman 43
... engines attached to the drill with delicate parts and nice adjustments to be destroyed by the concus- sion and recoil of the blow . The construction is such that the connec- tions between the drill and the driving machinery cease at the ...
... engines attached to the drill with delicate parts and nice adjustments to be destroyed by the concus- sion and recoil of the blow . The construction is such that the connec- tions between the drill and the driving machinery cease at the ...
Halaman 44
... engine is at the surface , power can be taken from it to operate in the deepest and most extensive mine .. Where a high fall of water can be obtained , a small wheel attached to the drill gives a very convenient power . This machine has ...
... engine is at the surface , power can be taken from it to operate in the deepest and most extensive mine .. Where a high fall of water can be obtained , a small wheel attached to the drill gives a very convenient power . This machine has ...
Halaman 62
... engine of 25 horse - power . The Knox mine , one - half mile from the Heslep , is 1,200 feet in length , with a vein 10 to 20 inches in width . It is owned by Preston & Co. They have hoisting - works run by a 30 horse - power engine ...
... engine of 25 horse - power . The Knox mine , one - half mile from the Heslep , is 1,200 feet in length , with a vein 10 to 20 inches in width . It is owned by Preston & Co. They have hoisting - works run by a 30 horse - power engine ...
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Istilah dan frasa umum
50 feet amalgam amount antimony arrastra assay average Bannack base bullion bed-rock bullion Calaveras County California Caņon 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 metal metallurgy 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
Bagian yang populer
Halaman 455 - ... upon a failure to comply with these conditions, the claim or mine upon which such failure occurred shall be open to relocation in the same manner as if no location of the same had ever been made, provided that the original locators, their heirs, assigns, or legal representatives, have not resumed work upon the claim after failure and before such location.
Halaman 454 - No claim shall extend more than three hundred feet on each side of the middle of the vein at the surface, nor shall any claim be limited by any mining regulation to less than twenty-five feet on each side of the middle of the vein at the surface, except where adverse rights existing on the tenth day of May, eighteen hundred and seventy-two, render such limitation necessary.
Halaman 454 - 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...
Halaman 456 - That where an adverse claim is filed during the period of publication it shall be upon oath of the person or persons making the same, and shall show the nature, boundaries, and extent of such adverse claim...
Halaman 456 - States surveyor general that five hundred dollars' worth of labor has been expended or improvements made upon the claim by himself or grantors; that the plat is correct, with such further description by such reference to natural objects or permanent monuments as shall identify the claim, and furnish an accurate description to be incorporated in (Jie patent.
Halaman 456 - If no adverse claim shall have been filed with the register and the receiver of the proper land office at the expiration of the sixty days of publication, it shall be assumed that the applicant is entitled to a patent...
Halaman 456 - ... it shall be assumed that the applicant is entitled to a patent; upon the payment to the proper officer of five dollars per acre, and that no adverse claim exists; and thereafter no objection from third parties to the issuance of a patent shall be heard, except it be shown that the applicant has failed to comply with the terms of this chapter.
Halaman 458 - ... the applicants, and they shall be at liberty to obtain the same at the most reasonable rates, and they shall also be at liberty to employ any United States Deputy Surveyor to make the survey. The Commissioner of the General Land-office shall also have power to establish the maximum charges for surveys and publication of notices under this Act; and in case of excessive...
Halaman 455 - All records of mining claims hereafter made shall contain the name or names of the locators, the date of the location, and such a description of the claim or claims located by reference to some natural object or permanent monument as will identify the claim.
Halaman 455 - But their right of possession to such outside parts of such veins or ledges shall be confined to such portions thereof as lie between vertical planes drawn downward as above described, through the end lines of their locations, so continued in their own direction that such planes will intersect such exterior parts of such veins or ledges.