Journal of the Franklin InstituteFranklin Institute, 1847 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] |
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acid ammonia amount apparatus applied April April 11 April 25 arrangement boiler bottom bridge broad gauge canal carbon carriages chamber clay coal color combination construction copper cylinder desire to secure diameter effect employed engine evaporation experiments feet flue Franklin Institute fully described furnace gauge glass gun-cotton heat Improvement inches increase invention and desire invention consists iron June 27 lake Leon lake Nicaragua length letters patent lever lime locomotive machine manner manufacture means ment metal metres miles mode motion moulds operation oven oxide pass patentee says Pennsylvania Philadelphia pipe placed plate platinum portion potash present pressure produced purpose quantity railroad rails railway reverberatory furnace road rollers routes screw secure by letters shaft side sliding spring steam stove substantially sufficient Sullivan county sulphate surface temperature thickness tion tons tube upper valve vessel weight wheel wire Wurtsboro York zinc
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Էջ 262 - The Committee on Science and the Arts, constituted by the Franklin Institute of the State of Pennsylvania for the promotion of the Mechanic Arts, to whom was referred for examination, two reflecting telescopes, made by Mr.
Էջ 327 - The Committee on Science and the Arts constituted by the Franklin Institute of the State of Pennsylvania, for the promotion of the Mechanic Arts, to whom was referred for examination a Solar Compass, invented by WM.
Էջ 245 - What we claim as our invention and desire to secure by Letters Patent is the combination...
Էջ 176 - ... but what we do claim as our invention, and desire to secure by letters patent, is the...
Էջ 311 - Having now described the nature of the invention, and in what manner the same is to be performed, I declare that I claim as my invention, first, the...
Էջ 83 - ... what I claim therein as new, and desire to secure by letters patent, is the manner in which I have combined the...
Էջ 122 - As the luminous effects are undoubtedly owing to a vibratory movement executed by the molecules of the platinum, it seems from the foregoing considerations to follow, that the frequency of those vibrations increases with the temperature.
Էջ 98 - What I claim as my invention, and which I desire to secure by letters patent...
Էջ 344 - In 1466, fig. 84, the nucleus projects on each side of the ray, so that its diameter must be greater than the thickness of the exterior stratum. He could not leave this part of his subject without calling attention to the fact that no REAL nebula seemed to exist among so many of these objects chosen without any bias: all appeared to be clusters of stars, and every additional one which shall be resolved will be an additional argument against the existence of any such.