Journal of the Franklin Institute of the State of Pennsylvania for the Promotion of the Mechanic Arts: Devoted to Mechanical and Physical Science, Civil Engineering, the Arts and Manufactures, and the Recording of American and Other Patent InventionsFranklin Institute, 1828 - Meteorology 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 aperture apparatus appears applied atmosphere bleaching boat boiler boiling borax bottom calcined canal capstan carriages cement centre charcoal chlorine colcothar colour common construction copper County cylinder described diameter drawing edge effect employed engine equal experiments fecula feet fire fixed fluid force Franklin Institute funnel furnace glass gold grain heat holes improvements inches inclined plane invention iron kind lever lime liquid liquor lower machine manner manufacture means melted metal method mill mode mordant motion mould box nitric acid obtained operation oxide Paris pass patent piece pipe piston placed plate portion potash pounds present pressure produced purpose quantity render round screw side steam steam engine stone substance sufficient sulphuric acid surface temperature thick tion tube upper valve vapour velocity vessel washed water wheel weight wheel whole wire wood yellow
Popular passages
Page 330 - That any person or persons having discovered or invented any new and useful art, machine, manufacture, or composition of matter, or any new and useful improvement on any art, machine, manufacture, or composition of matter...
Page 374 - I do hereby declare this to be my specification of the same; and that I do verily believe this my said specification doth comply, in all respects, fully, and without reserve or disguise, with the proviso in the said hereinbefore in part recited letters patent contained.
Page 276 - ... to the author of any important discovery or useful improvement in light or in heat, which shall have been made and published by printing, or in any way made known to the public, in any part of the continent of America, or any of the American islands ; preference being always given to such discoveries as shall, in the opinion of the Academy, tend most to promote the good of mankind...
Page 103 - They shall call the people unto the mountain; there they shall offer sacrifices of righteousness: for they shall suck of the abundance of the seas, and of treasures hid in the sand.
Page 112 - Buchanan that the same quantity of human labour employed in working a pump, turning a winch, ringing a bell, and rowing a boat, are as the numbers 100, 167, 227, and 248. The most advantageous manner of applying human strength is in the act of rowing.
Page 102 - The painting should be very highly finished; otherwise, when varnished, 'the tints will not appear united. " When the painting is quite dry, with rather a hard brush, passing it one way. varnish it with white wax, which is put into an earthen...
Page 66 - Esq. in consequence of a communication made to him by a certain foreigner residing abroad, for an invention of certain improvements in machinery for the purpose of spinning wool, cotton and other fibrous substances.
Page 375 - Derosne, do hereby describe the manner in which the said invention is to be performed, by the following description thereof, (that is to say...
Page 333 - And it is hereby enacted and declared, that simply changing the form or the proportions of any machine, or composition of matter, in any degree, shall not be deemed a discovery.
Page 331 - ... in such full, clear, and exact terms, as to distinguish the same from all other things before known, and to enable any person skilled in the art or science, of which it is a branch, or with which it is most nearly connected, to make, compound, and use the same.