The Mechanic's Magazine, Museum, Register, Journal and Gazette, Volumen 32Robertson, 1840 |
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Página 5
... fixed at the centre C , turning on a swivel . It should be provided also with the proper appa- ratus of micrometers , & c . It is obvious the ruler E H should be at least equal to D B , the semi - base of the cycloid = the semiphery of ...
... fixed at the centre C , turning on a swivel . It should be provided also with the proper appa- ratus of micrometers , & c . It is obvious the ruler E H should be at least equal to D B , the semi - base of the cycloid = the semiphery of ...
Página 6
... fixed . By your insertion of this , you will not only confer a favour on me , but perhaps be the means of saving many a man of family from being incapacitated for work . Yours , & c . C. SANDERS , Bookbinder . No. 185 , Drury Lane ...
... fixed . By your insertion of this , you will not only confer a favour on me , but perhaps be the means of saving many a man of family from being incapacitated for work . Yours , & c . C. SANDERS , Bookbinder . No. 185 , Drury Lane ...
Página 8
... fixed a stop- per for checking the wheel when intend- ing to disconnect . The paddle - wheel being checked , and H put in gear and turned by the winch , will of course turn the screws in the holes in the flange of C , which holes , are ...
... fixed a stop- per for checking the wheel when intend- ing to disconnect . The paddle - wheel being checked , and H put in gear and turned by the winch , will of course turn the screws in the holes in the flange of C , which holes , are ...
Página 31
... carried on by machinery . The Bee thus describes the apparatus : -In a back parlor in the second story was a round table fixed in iron shoes so as to be immovable . - Two of the legs of this table were hollow . Down the hollow legs wires.
... carried on by machinery . The Bee thus describes the apparatus : -In a back parlor in the second story was a round table fixed in iron shoes so as to be immovable . - Two of the legs of this table were hollow . Down the hollow legs wires.
Página 34
... fixed on the land , or even held in suspension in the air by a balloon . " The complex idea , " ( I use these terms in the philosophical sense of that mighty metaphysician , Locke , ) of the diving bell , was formerly " a most voice ...
... fixed on the land , or even held in suspension in the air by a balloon . " The complex idea , " ( I use these terms in the philosophical sense of that mighty metaphysician , Locke , ) of the diving bell , was formerly " a most voice ...
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acid advantage æther angle apparatus appears applied Argand burner Birmingham boat boiler braces bridge Bude light burner canal carbonic acid carriage cast iron cause centre Charles Blagden chemical affinity Clovis coal common conductors construction copper cylinder diameter diving bell effect Ellesmere Canal employed engine engraving equal experiments feet fire flame fluid Galignani glass heat horses improvements inches invention iron John Robison length letter light Liverpool London machine machinery Magazine manufacture mastic means Mechanics ment Messrs metal miles mode motion object observed obtained operation paddle paddle-wheel paper passing patent piece pipe piston plate present pressure principle produced propelling pulley purpose quantity Railway ratus rectangular floats render rope screw shaft ship side six months steam steam-engine stove sufficient surface Telford tion trapezium floats treenails tube valve vessel W. A. Robertson weight wheel zinc
Pasajes populares
Página 453 - Almighty's form Glasses itself in tempests; in all time, Calm or convulsed — in breeze or gale or storm, Icing the pole, or in the torrid clime, Dark-heaving, boundless, endless and sublime — The image of eternity — the throne Of the Invisible; even from out thy slime The monsters of the deep are made; each zone Obeys thee; thou goest forth, dread, fathomless, alone.
Página 89 - Lavoisier from thinking any such opinion warranted, that till he was prevailed upon to repeat the experiment himself, he found some difficulty in believing that nearly the whole of the two airs could be converted into water.
Página 90 - April, 1783, in which he reasons on the experiment of burning the two gases in a close vessel, and draws the conclusion, " that water is composed of dephlogisticated air and phlogiston, deprived of part of their latent heat."* The letter was received by Dr.
Página 89 - Priestley's 5th volume,* gave rise to this inquiry, at least in England ; Mr. Cavendish expressly refers to it, as having set him upon making his experiments. — (Phil. Trans. 1784, p. 126.) The experiment of Mr. Warltire consisted in firing, by electricity, a mixture of inflammable and common air in a close vessel, and two things were said to be observed : first, a sensible loss of weight ; second, a.
Página 93 - Cavendish's priority as he was, that Mr. Watt had ever heard of Mr. Cavendish's theory before he formed his own. Whether or not Mr. Cavendish had heard of Mr. Watt's theory previous to drawing his conclusions, appears more doubtful. The supposition that he had so heard, rests on the improbability of his (Sir Charles Blagden's,) and many others knowing what Mr. Watt had done, and not communicating it to Mr. Cavendish, and on the omission of any assertion in Mr. Cavendish's paper, even in the part...
Página 91 - Cavendish leaves it uncertain, whether or not he meant by phlogiston simply inflammable air, and he inclines rather to call inflammable air, water united to phlogiston. Mr. Watt says expressly, even in his later paper (of November 1783), and in a passage not to be found in the letter of April 1783, that he thinks that inflammable air contains a small quantity of water, and much elementary heat. It must be admitted that such expressions as these on the part of both of those great men, betoken a certain...
Página 384 - Judge not the Lord by feeble sense, But trust Him for His grace ; Behind a frowning providence He hides a smiling face. Blind unbelief is sure to err And scan His work in vain ; God is His own interpreter, And He will make it plain.
Página 222 - No person shall adopt any such registered design on any article of manufacture for sale, either wholly or partially, by making any addition to any original part thereof, or by making any subtraction from any original part thereof: And if any person commit any such act, he shall for every offence forfeit a sum not less than five pounds and not exceeding thirty pounds, to the proprietor of the design, in respect of which such offence has been committed.
Página 363 - The amendment was then withdrawn, and the bill was read a second time, and ordered to be referred to a select committee. MODE OF CONDUCTING MINES IN BELGIUM. At a recent meeting of the " Scientific Society," the secretary read a communication from Mr.
Página 22 - A TREATISE ON A BOX OF INSTRUMENTS, And the Slide Rule ; with the Theory of Trigonometry and Logarithms, including Practical Geometry, Surveying, Measuring of Timber, Cask and Malt Gauging, Heights, and Distances. By THOMAS KENTISH. In one volume. 12mo.