The School of Mines Quarterly, Volumen27Columbia University, 1906 |
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Página 32
... upper parts of the curves , several cases of change of curvature are made visible by the large scale employed . These are not due to accidental causes , as are those at the lower end , but to defective analysis , which is , indeed ...
... upper parts of the curves , several cases of change of curvature are made visible by the large scale employed . These are not due to accidental causes , as are those at the lower end , but to defective analysis , which is , indeed ...
Página 67
... upper twelve speeds of the motor when driving the spindle directly , the same on the first gear combination , and the upper eighteen on the second , constitute the tool's working speeds , 42 in all . The motor will give an output of ...
... upper twelve speeds of the motor when driving the spindle directly , the same on the first gear combination , and the upper eighteen on the second , constitute the tool's working speeds , 42 in all . The motor will give an output of ...
Página 119
... upper timbers of the head - frame . Numerous devices have been introduced with the object of pre- venting the fatal consequences of over - winding , and every fresh accident stimulates inventors to new contrivances . These devices may ...
... upper timbers of the head - frame . Numerous devices have been introduced with the object of pre- venting the fatal consequences of over - winding , and every fresh accident stimulates inventors to new contrivances . These devices may ...
Página 120
... upper part of the head - frame , the detaching hook comes into contact with a device which unlocks the connection and frees the rope from the cage . The rope passes away over the head - sheave , and at the same time by the operation of ...
... upper part of the head - frame , the detaching hook comes into contact with a device which unlocks the connection and frees the rope from the cage . The rope passes away over the head - sheave , and at the same time by the operation of ...
Página 121
... upper part of the head- frame , just below the sheaves , and in it is set a heavy cast - iron or steel plate , called the " disengaging plate . " This is perforated by FIG . 1 . a large circular hole , one half inch greater in diameter ...
... upper part of the head- frame , just below the sheaves , and in it is set a heavy cast - iron or steel plate , called the " disengaging plate . " This is perforated by FIG . 1 . a large circular hole , one half inch greater in diameter ...
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Términos y frases comunes
acid amount anticlinal astrorhizæ atoms Bagasse beds Berzelius boiling branches Bright interference colors Brix bromoform cage Cambric cane carbon cent Chem chemical individual chemist chloride columella combining weights compound connected copper corals costæ crystals deposits developed Devonic diameter dilute Dissolve dyke electric elements elongation engine Eocenic fact fault filter fissure Foraminifera formation fossils franklinite gases Geol Graptolites Hall heat HNO3 hundred feet hydrogen hydrothecæ idea igneous investigation juice laminæ limestone mamelons Meadow Valley means metal method methylene methylene iodide mineral motor neutral obtained occurs oil of cloves Ordovicic organic chemistry oxidation oxygen Pioche plant plates possible precipitate properties quartzite quinine Raymond and Ely reaction result rock salts septa shaft shale Siluric soluble solution speed steam Stromatoporoids structure substance sugar sulfur in methylene sulphuric surface Surv temperature theory tion tube upper vein vertical volume zinc
Pasajes populares
Página 2 - Mining claims upon veins or lodes of quartz or other rock in place bearing gold, silver, cinnabar, lead, tin, copper, or other valuable deposits...
Página 15 - They belong to the owner of the land and are a part of it, so long as they are on or in it, and are subject to his control; but when they escape, and go into other land, or come under another's control, the title of the former owner is gone.
Página 23 - ... may be found, but only those where the mineral is in sufficient quantity to add to their richness and to justify expenditure for its extraction, and known to be so at the date of the grant. There are vast tracts of country in the mining States which contain precious metals in small quantities, but not to a sufficient extent to justify the expense of their exploitation. It is not to such lands that the term mineral in the sense of this statute is applicable.
Página 23 - The exceptions of mineral lands from preemption and settlement and from grants to States for universities and schools, for the construction of public buildings, and in aid of railroads and other works of internal improvement, are not held to exclude all lands in which minerals may be found, but only those where the mineral is in sufficient quantity to add to their richness and to justify expenditure for its extraction, and known to be so at the date of the grant.
Página 20 - That whatever is recognized as a mineral by the standard authorities on the subject, where the same is found in...
Página 20 - All valuable mineral deposits in lands belonging to the United States, both surveyed and unsurveyed, are hereby declared to be free aiid open to exploration and purchase, and the lands in which they are found to occupation and purchase, by citizens of the United States...
Página 24 - Minerals, crude, or not advanced in value or condition by refining or grinding, or by other process of manufacture, not specially provided for.
Página 18 - When the filtrations are gathered into sufficient volume to have an appreciable value, and to flow in a clearly defined channel, it is generally possible to see it and to avoid diverting it, without serious detriment to the owner of the land through which it flows. But percolations spread in every direction through the earth, and it is impossible to avoid disturbing them without relinquishing the necessary enjoyment of the land.
Página 15 - Certainly, in popular estimation, petroleum is not regarded as a mineral substance any more than is animal or vegetable oil, and it can, indeed, only be so classified in the most general or scientific sense.
Página 13 - The material clearly is a mineral and it is reserved from the grant unless " the nature and context of the deed shows that it was not intended to be included " in the reservation. There is nothing to justify such a finding. The only claim that can be made is that the ledges of rock were so apparent and covered so large a portion of the original 100 acres that the parties could not have referred to them; that to except them would practically destroy the grant. Yet it may equally well be said that...