Journal of the Franklin InstitutePergamon Press, 1853 |
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Seite 356 - The Mississippi and Ohio Rivers, containing Plans for the protection of the Delta from inundation, and investigation of the practicability and cost of improving the Navigation of the Ohio and other Rivers by means of Reservoirs, with an Appendix on the Bars at the mouth of the Mississippi, by Chas.
Seite 348 - 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.
Seite 307 - ... and the subsequent adoption of it by the English courts, shows, that Chief Justice Eyre was considerably in advance of his associates upon this branch of the law. He had got rid, at, an early day, of the prejudice against patents so feelingly referred to by Baron Parke in Neilson v.
Seite 233 - The combination of the following parts above described is claimed, to wit, the core and bridge, or guide-piece, with the cylinder, the piston, the chamber, and the die, when used to form pipes of metal, under heat and pressure, in the manner set forth, or in any other mode substantially the same.
Seite 170 - ... contrary forces in opposite directions. It consists of lines of force which are compressed or expanded according to the transverse action of the conductor, which changes in direction with the form of the conductor, which are found in every part of the conductor, and can be taken out from any place by channels properly appointed for the purpose ; and nobody doubts that they are physical lines of force. Finally as regards a Magnet, which is the object of the present discourse. A magnet presents...
Seite 307 - ... for raising water from mines. Or it may perhaps extend also to a new process to be carried on by known implements, or elements, acting upon known substances, and ultimately producing some other known substance, but producing it in a cheaper or more expeditions manner, or of a better and more useful kind.
Seite 214 - 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.
Seite 170 - If a ball be electrified positively and insulated in the air, and a round metallic plate be placed about 12 or 15 inches off, facing it and uninsulated, the latter will be found, by the necessity mentioned above, in a negative condition ; but it is not negative only on the side facing the ball, but on the other or outer face also, as may be shown by a carrier applied there, or by a strip of gold or silver leaf hung against that outer face. Now the power affecting this face does not pass through the...
Seite 307 - When the effect produced is no new substance, or composition of things, the patent can only be for the mechanism, if new mechanism is used ; or for the process, if it be a new method of operating, with or without old mechanism, by which the effect is produced.
Seite 306 - Undoubtedly, he observed, there can be no patent for a mere principle; but for a principle so far embodied and connected with corporeal substances as to be in a condition to act, and to produce effects in any art, trade, mystery, or manual occupation, I think, there may be a patent.