The Penny Mechanic: A Magazine of the Arts and Sciences, Volume 11837 |
Contents
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Common terms and phrases
acid alarum apparatus appear atmosphere balloon body boiler boiling carbon carbonic acid cause centre chlorine colour common condensed consequence constructed copper Correspondents cylinder D. A. DOUDNEY diameter earth Editor effect eight o'clock electricity equal experiment feet fire fixed force glass half-past eight heat Holloway Press Holywell hydrogen improvement inches inserted Institution invention iron Islington LECTURES length lever light Literary and Scientific machine machinery Magazine means ment metal miles motion muriatic muriatic acid Mutual Instruction nitric acid obliged ounces oxygen paper parachute pass patent Penny Mechanic perpetual motion persons Phrenology piece pipe piston plate portion pounds present pressure produced published by BERGER quantity QUERIES Railway readers side Society solution Southampton Steam Engine steel substance sufficient sulphuric sulphuric acid surface tained temperature tion tube valve vessel wheel wire zinc
Popular passages
Page 19 - One vessel of water rarefied by fire driveth up forty of cold water ; and a man that tends the work is but to turn two cocks, that, one vessel of water being consumed, another begins to force and refill with cold water, and so successively, the fire being tended and kept constant, which the selfsame person may likewise abundantly perform in the interim, between the necessity of turning the said cocks.
Page 193 - The warp was placed perpendicularly, the reed fell with the weight of at least half a hundred weight, and the springs which threw the shuttle were strong enough to have thrown a Congreve rocket. In short, it required the strength of two powerful men to work the machine at a slow rate, and only for a short time.
Page 105 - What mere assertion will make any man believe, that in one second of time, in one beat of the pendulum of a clock, a ray of light travels over 192,000 miles, and would therefore perform the tour of the world in about the same time that it requires to wink with our eyelids, and in much less than a swift runner occupies in taking a single stride...
Page 29 - At present, whenever a body acquires a great velocity, it soon loses it by . friction against the surface of the earth ; the friction of water against the surfaces it runs over soon reduces the rapid torrent to a gentle stream ; the fury of the tempest is lessened by the friction of the air on the face of the earth ; and the violence of the ocean is subdued by the attrition of its own waters.
Page 313 - The immense machine which suspended us ' between heaven and earth,' whilst it appeared to be forced upwards with terrific violence and rapidity through unknown and untravelled regions, amidst the...
Page 115 - It is nevertheless true, that a sufficient skill in analysis to follow the general outline — to see the mutual dependence of the different parts of the system, and to comprehend by what means...
Page 193 - April, 1785. This being done, I then condescended to see how other people wove, and you will guess my astonishment when I compared their easy modes of operation with mine. Availing myself, however, of what I then saw, I made a loom, in its general principles nearly as they are now made. But it was not till the year 1787 that I completed my invention, when I took out my last weaving-patent, August 1st, of that year.
Page 92 - ... enter a memorandum of any alteration in the said title or specification, not being such disclaimer or such alteration as shall extend the exclusive right granted by the said letters patent...
Page 193 - Some time after he had brought his first loom to perfection, a manufacturer, who had called upon him to see it at work, after expressing his admiration of the ingenuity displayed in it, remarked that, wonderful as was Mr.
Page 91 - Letters Patent, for the sole making, exercising, vending, or using of any invention, . may, if he think fit, enter with the clerk of the patents, of England, Scotland, or Ireland, respectively, as the case may be, having first obtained the leave of his Majesty's Attorney-General or Solicitor-General in case of an English patent...