Journal of the Franklin Institute, Volume 17; Volume 21Pergamon Press, 1836 Vols. 1-69 include more or less complete patent reports of the U. S. Patent Office for years 1825-59. |
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acid action alloy apparatus applied atmospheres August 17 bismuth boiler bottom bowl canal centre certificate of honourable charcoal claim clouds coal committee condensed construction copper cylinder Decazeville described diameter effect elastic engine experiments explosion feet fire flue fluid fluid ounce force Franklin Institute fuel furnace fusible fusible alloys gauge grains heat horizontal hot air blast improvement inches increased invention iron iron bowl June 12 Kennebec county lever lime machine manner maximum vaporization means mention is awarded mercury metal mode motion nearly observed obtained October 27 opening ounce oxide oxygen pass patent Pennsylvania Philadelphia pipe piston placed plate pressure produced pump purpose Rail Road rain remarks revolving roller screw shaft side slide specification specimen spout stationary point steam stove sulphuric sulphuric acid surface temperature thermometer thick tion tube turpentine upper valve weight wheel wind wire York zinc
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Page 247 - 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 118 - 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.
Page 144 - Experiments to measure the velocity of Electricity, and the duration of Electric Light.
Page 237 - ... have not, by inadvertence, accident, or mistake, and without any fraudulent or deceptive intention, been complied with on the part of the said inventor, it shall be lawful for the Secretary of State, upon the surrender to him of such patent...
Page 271 - 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...
Page 190 - Institution is formed for the purpose of enabling mechanics and artisans, of whatever trade they may be, to become acquainted with such branches of science as are of practical application in the exercise of that trade ; that they may possess a more thorough knowledge of their business, acquire a greater degree of skill in the practice of it, and be qualified to make improvements and even new inventions in the arts which they respectively profess.
Page 98 - As a member of the patent board for several years, while the law authorized a board to grant or refuse patents, I saw with what slow progress a system of general rules could be matured. Some, however, were established by that board. One of...
Page 169 - On the other hand, there may be a valid patent for a new combination of materials previously in use for the same purpose, or for a new method of applying such materials.
Page 275 - To all to whom these presents shall come be it known, that I, Thomas Loud, Jun.
Page 181 - A certain quantity of heat will make some bodies good conductors that will not otherwise conduct. 16. Thus wax rendered fluid, and glass softened by heat, will both of them conduct. 17. And water, though naturally a good conductor, will not conduct well when frozen into ice by a common degree of cold; not at all where the cold is extreme.