Liquid Air, and the Liquefaction of Gases: Theory, History, Biography, Practical Applications, Manufacture

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Henley, 1900 - 365 стор.

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Сторінка 360 - is to make the subject as plain as possible and to show what the modern conception of electricity is; to show how two plates of different metal, immersed in acid, can send a message around the globe; to explain how a bundle of copper wire rotated by a steam engine can be the agent in lighting our streets, to tell what the volt. ohm and ampere...
Сторінка 7 - He told us he had been thirty years employing his thoughts for the improvement of human life. He had two large rooms full of wonderful curiosities, and fifty men at work ; some were condensing air into a dry tangible substance, by extracting the nitre, and letting; the aqueous or fluid particles percolate ; others softening marble for pillows and pin-cushions ; others petrifying the hoofs of a living horse to preserve them from foundering.
Сторінка 361 - It is not descriptive of universal or common shop usage, but shows special ways of doing work better, more cheaply, and more rapidly than usual, as done in fifty or more leading shops in Europe and America. Some of Its over 500 items and 222 illustrations are contributed directly for its pages by eminent constructors; the rest have been gathered by the author in his thirty years
Сторінка 360 - This work treats of the making at home of electrical toys, electrical apparatus, motors, dynamos, and instruments in general, and is designed to bring within the reach of young and old the manufacture of genuine and useful electrical appliances.
Сторінка 359 - Every user of a gas engine needs this book. Simple, instructive, and right up-to-date. The only complete work on the subject. Tells all about the running and management of gas, gasoline and oil engines, as designed and manufactured in the United States.
Сторінка 362 - ... the shaping or finishing of metals. There is nothing experimental or visionary about the book, all devices being in actual use and giving good results. It might be called a compendium of shop methods, showing a variety of special tools and appliances which will give new ideas to many mechanics, from the superintendent down to the man at the bench.
Сторінка 361 - ... making clear any text, no matter how well written. There are over five hundred separate items, selected from the author's observations and the observations of others, as well as from the leading mechanical papers. It abounds in handy ways of doing work, commonly called shop kinks, as the title of the book implies, and there is enough useful information in the book to repay the outlay many times over. The devices shown are all taken from actual practice and the name of the shops where they are...
Сторінка 69 - If the absolute temperature of any uniformly hot substance be divided into any number of equal parts, the effects of those parts in causing work to be performed are equal...
Сторінка 361 - ... of doing work, commonly called shop kinks, as the title of the book implies, and there is enough useful information in the book to repay the outlay many times over. The devices shown are all taken from actual practice and the name of the shops where they are to be found is given, so there is nothing that can be called untried or impracticable In It. The information imparted by books of this class, especially when written by men of long experience, is the most valuable that can be obtained, and...
Сторінка 360 - How to Become a Successful Electrician It is the ambition of thousands of young and old to become electrical engineers. Not everyone is prepared to spend several thousand dollars upon a college course, even if the three or four years requisite are at their disposal. It is possible to become an electrical engineer without this sacrifice, and this work is designed to tell "How to Become a Successful Electrician" without the outlay usually spent in acquiring the profession.

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