Journal of the Franklin Institute

Franklin Institute, 1835
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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Seite 263 - Be it known that I, John Fitch, of Philadelphia, in the county of Philadelphia, the State of Pennsylvania, have invented a new and improved mode of preventing steam-boilers from bursting, and I do hereby declare that the following is a full and exact description thereof, reference being had to the accompanying drawings, and to the letters of reference marked thereon.
Seite 81 - 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 112 - Lowe, do hereby declare the nature of my said invention, and the manner in which the same is to be performed, are fully described, and ascertained in and by the following statement thereof, reference "being had to the drawing hereto annexed, and to the figures and letters marked thereon...
Seite 156 - 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 76 - The strength of a square or rectangular beam to resist lateral pressure, acting in a perpendicular direction to its length, is as the breadth and square of the depth, and inversely as the length...
Seite 33 - It is drawn by a horse immediately after the plough, pressing two furrows at once, and going twice over each furrow.
Seite 108 - Now know ye, that in compliance with the said proviso, I, the said Joshua Taylor Beale, do hereby declare the nature of my said invention, and the manner in which...
Seite 301 - The stock of the said company and its branches shall be exempt from taxation for and during the term of seven years from and after the completion of the said railroads, or any of them; and after that, shall be subject to a tax not exceeding one-half of one per cent, per annum, on the net proceeds of their investments.
Seite 348 - Poyisonier, so as to guard against the water being thrown over from the boiler into the pipe by the agitation of the ship. In this, one singularity was that the furnace or firebox was in the middle of the boiler, so that the water surrounded it in contact. This still, however, was expensive, and occupied much room. Such were the advances already made in the art of obtaining fresh from salt water, when Mr. Isaacks, the petitioner, suggested his discovery. As the merit of this could be ascertained...
Seite 347 - ... with small alterations, by the same fire, and in the same time, which is used for cooking the ship's provisions, and offers to convey to the government of the United States a faithful account of his art or secret, to be used by, or within the United States, on their giving to him a reward suitable to the importance of the discovery, and in the opinion of government, adequate to his expenses and the time he has devoted to the bringing it into effect. In order to ascertain the merit of the petitioner's...

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