What people are saying - Write a review
We haven't found any reviews in the usual places.
acceleration acid action alloy alternating currents aluminum ammonia amount apparatus applied arsenic ARSENIC BRONZE blast furnaces boiler buildings carbon cause cent centre coal coil coke color color-blind combustion Committee compound compound locomotive construction containing copper crank cylinder difference direction drop-leg effect elastic limit electric elongation engine experiments feet fire fire apparatus force Franklin Institute fuel furnace Galveston give gram gross tons heat horse-power increase invention iodine jetty Journal lard light loop magnetic manganese manganese steel manufacture ment metal method Niagara nickel nitric acid NW NW obtained output oxide parallel Patent Philadelphia phosphor bronze pig iron pipe piston plate practical present pressure produced Prof quantity red-shortness riser river salt silicon square inch steam steamloop tannin temperature tensile strength tests tion tube tungsten United velocity welding wheels wire
Page 137 - I am apt to believe that it will be celebrated by succeeding generations as the great anniversary festival. It ought to be commemorated as the day of deliverance, by solemn acts of devotion to God Almighty. It ought to be solemnized with pomp and parade, with shows, games, sports, guns, bells, bonfires, and illuminations, from one end of the continent to the other, from this time forward forevermore.
Page 180 - was a man of the highest integrity ; my mother, an excellent woman, was particularly known throughout the neighbourhood for her charitable donations. My father destined me from a child for the pursuits of polite learning, which I prosecuted with such eagerness, that, after I was twelve years old, I rarely retired to bed from my lucubrations till midnight. This was the first thing which proved pernicious to my eyes, to the natural weakness of which were added frequent headachs.
Page vi - COUNSELLORS AT LAW SOLICITORS OF PATENTS PHILADELPHIA Forrest Building, 119 South Fourth Street NEW YORK Potter Building, 38 Park Row WASHINGTON Atlantic Building, 928 F Street THE JAMES SMITH WOOLEN MACHINERY COMPANY, Workt, 411 to 421 Race St., Philadelphia, Pa.
Page 182 - Spina, a native of Pisa, who died in the year 1313. In the Italian Dictionary, Delia Crusca, under the head of " Occhiale," or Spectacles, it is stated that Friar Jordan de Rivalto tells his audience, in a sermon published in 1305, that " it is not twenty years since the art of making spectacles was found out, and is indeed one of the best and most necessary inventions in the world.
Page 182 - English origin.) Pliny says that Nero the tyrant had a ring with a gem in it, which he looked through, and watched the swordplay of the gladiators, — men who killed each other to amuse the people, — more clearly than with the naked eye. So Nero had an opera-glass. So Mauritius the Sicilian stood on the promontory of his island, and could sweep over the entire sea to the coast of Africa with his nauscopite, which is a word derived from two Greek words, meaning "to see a ship.
Page 181 - Somewhat reluctantly the scholars said, " It is not a stone ; we hardly know what it is." Cicero said that he had seen the entire Iliad, which is a poem as large as the New Testament, written on a skin so that it could be rolled up in the compass of a nut-shell. Now, this is imperceptible to the ordinary eye. You have seen the Declaration of Independence in the compass of a quarter of a dollar, written with glasses. I have to-day a paper at home, as long as half my hand, on which was photographed...
Page 162 - 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 475 - A practical treatise for the stationary engineer, telling how to erect, adjust and run the principal steam engines in use in the United States. Describing the principal features of various special and well-known makes of engines: Temper Cut-off, Shipping and Receiving Foundations.
Page 186 - ... of a picture is immediately made manifest by a corresponding discord in the arrangement of its light and shade, or, as artists term it, the effect. I find, at times, many of my brother-engravers in doubt how to translate certain colours of pictures, which to me are matters of decided certainty and ease.
Page 120 - ... first. From this time the operation is conducted on the hearth or open furnace in the same way as in making ordinary steel, care being at the same time taken to continually protect the bath from oxidation by means of a layer of slag or cinder, which is renewed as required, and also to take precautions to prevent redshortness in the metal before the final introduction of the recarbonizing and manganiferous silico-spiegel iron or ferromanganese. The steel...