Journal of the Franklin Institute, Volume 95; Volume 125

Front Cover
Vols. 1-69 include more or less complete patent reports of the U. S. Patent Office for years 1825-59.
 

Other editions - View all

Common terms and phrases

Popular passages

Page 444 - Prominent singers, speakers, or performers, may derive an income from royalties on the sale of their phonautograms, and valuable plates may be printed and registered to protect against unauthorized publication.
Page 355 - Now it is evident that it a surface be prepared for a positive picture, sensitive to yellow rays only, and that the two negatives, sensitive only to blue and red, be superimposed either on the other, and be laid on this surface, the action of light will be to give all the yellow existing in the subject, and if this process be repeated on other surfaces sensitive only to red or blue, respectively, there will have been produced three pictures of a colored object, each of which contains a primitive...
Page 356 - ... color of it. Now, if these three positives be received on the same kind of material as that used for the negatives and be then laid the one on the other, with true coincidence as to the form, and all laid upon a white surface, it will not be difficult to imagine that the effect would be not only the representation of the form of the object, but that of its color also in all its compounds. ******* "Although the idea I have endeavored to express in words may be utterly worthless, I am unwilling...
Page 21 - Pepys that the battery would afford an experimentum crucis on the subject; and his ingenuity readily suggested a mode of making it every way unobjectionable. He bent a wire of pure soft iron, so as to form an angle in the middle, in which part he divided it longitudinally, by a fine saw. In the opening so formed, he placed diamond powder, securing it in its situation by two finer wires, laid above and below it, and kept from shifting, by another small wire bound firmly and closely round them. All...
Page 308 - ... that tide, or 0.9 foot. It has already be seen that if the Bolivar Gorge section were carried out to sea between parallel jetties the maximum velocities through it would not exceed 2.4 feet for the 1.8 foot tide which now gives 3.1 feet maximum velocities in the Bolivar Gorge. In other words, such a jettied channel offers more resistance to inflow than does the present entrance; reduces the present tidal prism about one-third; allows the bay to fill more slowly than the present entrance does,...
Page 22 - Mr. PEPYS found that the whole of the diamond had disappeared ; the interior surface of the iron had fused into numerous cavities, notwithstanding the very moderate heat to which it had been exposed; and all that part which, had been in contact with the diamond was converted into perfect blistered steel. A portion of it being heated red and plunged into water, became so hard as to resist the file, and to scratch glass.
Page 216 - In blowing steam into a large vessel, these explosions occur in the middle of the mass, and create simply a series of sharp noises. If, however, steam be blown into a large inclined pipe full of water, it will rise by difference of gravity to the top of the pipe, forming a bubble as previously stated, and, when condensation takes place, the water below the bubble will rush up to fill the vacuum, giving a blow directly against the side of the pipe. As the water still further recedes, the bubble will...
Page 221 - And David commanded to gather together the strangers that were in the land of Israel; and he set masons to hew wrought stones to build the house of God. 3 And David prepared iron in abundance for the nails for the doors of the gates, and for the joinings...
Page 410 - The general character of the bottom elsewhere than on the sand area is a very eoft mud, the exceptions being a few hard-mud areas of limited extent, and a very few isolated spots where shell was found. The extent and position of the sand deposit would seem to leave but little doubt as to its origin. "As shown upon the chart by the dotted area, it lies almost entirely upon the east side of the west jetty, the small deposit to the westward having been probably carried over the top of the jetty. The...
Page 171 - Report of a Commission Appointed to Consider a General System of Drainage for the Valleys of Mystic, Blackstone and Charles Rivers, 1886 (State publ.).

Bibliographic information