The Mechanic's Magazine, Museum, Register, Journal and Gazette, Volume 44Robertson, 1846 |
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action angle apparatus appears applied April atmospheric atmospheric railways blades boiler broad gauge Canopus carriage centre claim colour construction copper course crucible curve cylinder diameter dihedral angle effect employed equal equation Euclid experiments fact feet fire Fleet-street force Galignani gauge geometry give given grains gutta percha heat horses power hour improvements invention iron Jopling length light London long-boiler machine machinery Magazine magnetic manufacture March mathematical means mechanical ment Messrs metal method minute mode motion narrow gauge obtained opinion oxide paddle-wheels patent piece pipe piston plane plate practical pressure principle produced pump purpose quantity racter railway red heat remarks render revolutions per minute SCREW PROPELLING Septenary shaft ship side six months slide solution speed square inch steam engine steamer stroke substance surface tion tons tube valve velocity vessel weight wheel wire
Popular passages
Page 309 - If a straight line be divided into two equal parts, and also into two unequal parts; the rectangle contained by the unequal parts, together with the square of the line between the points of section, is equal to the square of half the line.
Page 485 - If two straight lines meeting one another be parallel to two others that meet one another, though not in the same plane with the first two ; the first two and the other two shall contain equal angles.
Page 429 - Pleas, calling upon the plaintiff to show cause why the verdict should not be set aside...
Page 496 - ... along with from one to three per cent, of their weight of carburet of manganese ; and exposing the crucible to the proper heat for melting the materials which are, when fluid, to be poured into an ingot mould in the usual manner...
Page 124 - The following is the order in which the several divisions of the subject treated of in this section of the author's researches in electricity, succeed one another: — 1. Apparatus required. 2. Action of magnets on heavy glass. 3. Action of magnets on other substances acting magnetically on light. 4. Action of magnets on the metals generally. 5. Action of magnets on the magnetic metals and their compounds. 6. Action of magnets on air and gases. 7. General considerations. In giving an account of the...
Page 156 - That, in order to complete the general chain of narrow gauge communication from the north of England to the southern coast, any suitable measure should be promoted to form a narrow gauge link from Oxford to Reading, and thence to Basingstoke, or by any shorter route connecting the proposed Rugby and Oxford line with the South- Western Railway.
Page 136 - If it fall obliquely, it will be reflected obliquely in the opposite direction ; and in all cases the angle of incidence will be equal to the angle of reflection. This is the fundamental law of Catoptrics, or reflected light.
Page 303 - Jones v. Pearce, and I recollect that those cases proceeded on the ground of the former machines being, in truth, mere experiments, which altogether failed. The public use and exercise of an invention, means a use and exercise in public, not by the public.
Page 303 - with respect to this objection, the question is somewhat new*. Some things are obvious as soon as they are made public ; of others, the scientific world may possess itself by analysis ; some inventions almost baffle discovery. But to entitle a man to a patent, the invention must be new to the world.
Page 380 - ... current of blood through the umbilical vein and the more likely will the foetus be to suffer from their effects. From these observations I think we are justified in coming to the conclusion, that the administration of ergot of rye to a woman in labor is attended with danger to the child, whenever a time sufficient for the absorption and transmission of its noxious properties elapses before the child is born ; and from the cases above stated I am inclined to place two hours as the limit of safety...