Journal of the Franklin InstitutePergamon Press, 1852 - Electronic journals 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] |
Other editions - View all
Common terms and phrases
apparatus April 20 arrangement attached bituminous bituminous coal boiler cent centre chimney claim therein coal coefficient combination connected connexion constructed creosote cubic feet cubic foot cutters cylinder described my improved diameter double strokes draft effect electric electro-magnet engine equivalent experiments February 17 flues Franklin Institute friction grate surface gutta percha heating surface horse power hour invention consists iron Journal length lever light light-house machine magnet manner mean effective pressure means metallic miles motion November 11 operation overfall paddle wheel passing patent Philadelphia Philadelphia gas piston per minute placed plate pressure propeller proportion pump purpose Railroad resistance revolutions revolutions per minute revolving rollers Roman cement screw shaft side sliding slip speed spring square inch steam steamers strokes of piston substantially as described telegraph thickness timber tion tons tube valve velocity vessel weight wind wire York
Popular passages
Page 19 - Having now particularly described and ascertained the nature of my said invention and in what manner the same is to be performed, I declare that what I claim is (d).
Page 286 - 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.
Page 14 - Having thus described the nature of my invention, and the manner in which the same is to be performed, I would...
Page 262 - ... drawings annexed or belonging to the same ; and it shall be the duty of the commissioner to cause the same, or any authenticated copy of the original record, specification, or drawing which he may obtain, to be transcribed and copied into books of record to be kept for that purpose ; and wherever a drawing was not originally annexed to the patent and referred to in the specification...
Page 23 - I claim as my invention, and desire to secure by letters patent,, is the combination of the measuring seed roller with the distributing seed roller, the two being arranged and operated in the manner and for the purpose herein described.
Page 99 - that, whenever any patent which has heretofore been granted, or which shall be inoperative or invalid by reason of a defective or insufficient description or specification...
Page 425 - It Is as plain as that two and two make four that the man who could produce It In one case could do so In another.
Page 260 - ... of which produces effects which cannot be disregarded. The greater the distance between the axles, while the length of the body remains the same, the less is the influence of these shocks or concussions ; and this has led, in many instances, to the placing them in passenger cars, at 01 near their extreme ends. Now, however, a compromise...
Page 369 - What I claim, therefore, as my invention, and desire to secure by letters patent, is the guide wheels, in combination with the rail, constructed as described, and the carriage, — said wheels having their circumferences bevelled so as to expose two surfaces to roll upon, one to project against the side of the rail, and the other to come in action upon the surface of the inner strip, forming part...
Page 99 - that whenever any patent is inoperative or invalid, by reason of a defective or insufficient specification, or by reason of the patentee claiming as his own invention or discovery more than he had a right to claim as new...