Journal of the Franklin Institute, Volume 153Pergamon Press, 1902 Vols. 1-69 include more or less complete patent reports of the U. S. Patent Office for years 1825-1859. cf. Index to v. 1-120 of the Journal, p. [415] |
Dari dalam buku
Hasil 1-5 dari 93
Halaman 2
... facts concerning amalgamation— was known long before Pliny's time , and cupellation , as a refining process for gold , was certainly practiced before the second century B.C. The method of separating silver from gold by a process of ...
... facts concerning amalgamation— was known long before Pliny's time , and cupellation , as a refining process for gold , was certainly practiced before the second century B.C. The method of separating silver from gold by a process of ...
Halaman 5
... , and being , in fact , alloys of the admixed impurities with a little of the principal metal , have a lower melting point than the pure metal . Hence they solidify last and form Jan. , 1902. ] 5 Constitution of Binary Alloys .
... , and being , in fact , alloys of the admixed impurities with a little of the principal metal , have a lower melting point than the pure metal . Hence they solidify last and form Jan. , 1902. ] 5 Constitution of Binary Alloys .
Halaman 8
... fact that in different crystals the lines are parallel tends to confirm this view , the strain not having been manifested in a single direction . When such is the condition due to stress , a condition such as is illustrated in Fig . 6 ...
... fact that in different crystals the lines are parallel tends to confirm this view , the strain not having been manifested in a single direction . When such is the condition due to stress , a condition such as is illustrated in Fig . 6 ...
Halaman 12
... fact of molecular mobility in solids in a prolonged series of experiments upon the diffusion of gold into lead at temperatures varying from 250 ° down to ordinary tempera- tures . Graham showed long ago that the diffusion of gold ...
... fact of molecular mobility in solids in a prolonged series of experiments upon the diffusion of gold into lead at temperatures varying from 250 ° down to ordinary tempera- tures . Graham showed long ago that the diffusion of gold ...
Halaman 39
... facts tend to emphasize the neces sity of uniformity in mixing and molding in order to secure uniform density in the briquettes , and thus avoid the result- ant apparent losses in the tensile strength . CONSTANCY OF VOLUME . One of the ...
... facts tend to emphasize the neces sity of uniformity in mixing and molding in order to secure uniform density in the briquettes , and thus avoid the result- ant apparent losses in the tensile strength . CONSTANCY OF VOLUME . One of the ...
Edisi yang lain - Lihat semua
Istilah dan frasa umum
acid action alloys alternators armature boiler briquettes British camera carbon cause cement cent chain gear Chairman chemical chill chromium CLIII Coleman Sellers Committee Company copper counter-electromotive force crown-sheet crystals curve deposits diameter drive electrical electrochemical electrode Engineering eutectic experiments fact fire Franklin Institute fusible plug heat held Wednesday Highest Award hot wave inches increase invention iron light lisière load machine manufacture mechanical meeting ment metal method metric system microscope mold motor Mount Saint Elias obtained paper parallel patent phase Philadelphia photographic physical plate plug Portland Portland Canal position pounds practical present pressure prints produced rays revolutions per minute rivet Russian Secretary Section sheet shows Silent Chain sodium solid solid solution solution speed sprocket standard stay-bolts steel sulphate synchronism temperature territory tests thread tion United weights and measures wheel zinc zinc sulphate
Bagian yang populer
Halaman 160 - That whenever the summit of the mountains which extend in a direction parallel to the coast from the 56th degree of north latitude to the point of intersection of the 141st degree of west longitude shall prove to be at the distance of more than ten marine leagues from the ocean, the limit between the British possessions and the line of coast which is to belong to Russia, as above mentioned...
Halaman 160 - ... longitude, (of the same meridian); and finally, from the said point of intersection, the said meridian line of the 141st degree, in its prolongation as far as the Frozen Ocean.
Halaman 80 - Be it resolved by the Senate and House of Representatives of the United States of America in Congress assembled, That the Secretary of the Treasury be, and he is hereby, authorized and directed to furnish to each State, to be delivered to the governor thereof, one set of the standard weights and measures of the metric system for the use of the States, respectively.
Halaman 84 - The bureau is authorized to exercise its functions for the Government of the United States, for any State or municipal government within the United States, or for any scientific society, educational institution, firm, corporation, or individual within the United States engaged in manufacturing or other pursuits requiring the use of standards or standard measuring instruments.
Halaman 422 - I presently found that, by means of this lens, air was expelled from it very readily. Having got about three or four times as much as the bulk of my materials, I admitted water to it, and found that it was not imbibed by it. But what surprised me more than I can well express was that a candle burned in this air with a remarkably vigorous flame...
Halaman 80 - States to the provisions of this act, the brass troy -pound weight procured by the minister of the United States at London, in the year eighteen hundred and twenty-seven, for the use of the mint, and now in the custody of the mint at Philadelphia, shall be the standard troy pound of the mint of the United States, conformably to which the coinage thereof shall be regulated.
Halaman 201 - ... provide himself with a good rnusket or firelock, a sufficient bayonet and belt, two spare flints, and a knapsack, a pouch with a box therein to contain not less than twenty-four cartridges, suited to the bore of his musket or firelock, each cartridge to contain a proper quantity of powder and ball: or with a good rifle, knapsack, shotpouch and powder-horn, twenty balls suited to the bore of his rifle, and a quarter of a pound of powder...
Halaman 416 - I now mean by elements, as those chymists that speak plainest do by their principles, certain primitive and simple, or perfectly unmingled bodies; which not being made of any other bodies, or of one another, are the ingredients of which all those called perfectly mixt bodies are immediately compounded, and into which they are ultimately resolved...
Halaman 160 - North latitude, and between the 131st and 133d degree of West longitude (Meridian of Greenwich), the said line shall ascend to the North along the Channel called Portland Channel, as far as the Point of the Continent where it strikes the 56th degree of North latitude...
Halaman 160 - The line of demarcation between the Possessions of the High Contracting Parties, upon the Coast of the Continent, and the Islands of America to the North-West...