Mechanics' Magazine and Journal of Enigneering, Agricultural Machinery, Manufacturing, and Shipbuilding, 2권Knight and Lacey, 1824 |
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5 페이지
... atmospheric air , " ( atmosphere ) , p . 141 . But , " as the resistance of the contained gas decreases , the external air will gradually gain admission into the body of the lamp . Did this not take place , A VACUUM Would be formed ...
... atmospheric air , " ( atmosphere ) , p . 141 . But , " as the resistance of the contained gas decreases , the external air will gradually gain admission into the body of the lamp . Did this not take place , A VACUUM Would be formed ...
6 페이지
... atmospheres , " he quotes ( unconscious , possibly , of its bearing ) the overwhelming fact , that Mr. Perkins has just con- structed a steam generator , " which has been proved to sustain the enor- mous and incredible pressure of ...
... atmospheres , " he quotes ( unconscious , possibly , of its bearing ) the overwhelming fact , that Mr. Perkins has just con- structed a steam generator , " which has been proved to sustain the enor- mous and incredible pressure of ...
20 페이지
... atmosphere as the fall of as many inches in some other parts of the world ; and as the observa- tion is as readily made in one case as the other , it becomes of impor- tance to be noted . The following remarks and ob- servations , made ...
... atmosphere as the fall of as many inches in some other parts of the world ; and as the observa- tion is as readily made in one case as the other , it becomes of impor- tance to be noted . The following remarks and ob- servations , made ...
21 페이지
... atmosphere and the weather has not , during the time of observation , undergone any very material change . The following additional remarks and observations on the Barometer , though not applicable to this island , may notwithstanding ...
... atmosphere and the weather has not , during the time of observation , undergone any very material change . The following additional remarks and observations on the Barometer , though not applicable to this island , may notwithstanding ...
22 페이지
... atmosphere , but are invariably foretold by the barometer . It is however to be observed , that the steady strong breezes , almost approaching to a gale , and which blow there from the south - east in the summer season , have a tendency ...
... atmosphere , but are invariably foretold by the barometer . It is however to be observed , that the steady strong breezes , almost approaching to a gale , and which blow there from the south - east in the summer season , have a tendency ...
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advantage angle appears applied artizans atmosphere Birmingham body boiler bottom cause centre circle circumference colour combination Committee communication condenser construction copper correspondent cylinder diameter diurnal motion draw effect employed engine equal experiment feet fire force France friction GENTLEMEN give given Glasgow greater Hansard heat HENRY DEACON improved inches Institution invention iron James Watt John Heathcoat labour laws length lever London machine machinery manner manufacture matter means mecha Mechanic's Magazine mechanics meeting ment metal method Metron minus-pressure mode motion move neral obedient servant observed opinion paper perpetual motion piece pipe piston present pressure principle produced purpose quantity quired readers ship side solder square steam steam-engine suppose surface tained tical timber tion tube turpentine valve velocity vessel Watt weight wheel whole wood workmen
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117 페이지 - Studies serve for delight, for ornament, and for ability. Their chief use for delight, is in privateness and retiring; for ornament, is in discourse; and for ability, is in the judgment and disposition of business...
362 페이지 - Observations on a general iron railway, or land steam conveyance, to supersede the necessity of horses in all public vehicles ; showing its vast superiority in every respect over all the present pitiful methods of conveyance by turnpike roads, canals, and coasting traders ; containing every species of information relative to railroads and locomotive engines.
14 페이지 - In human works, though labour'd on with pain, A thousand movements scarce one purpose gain; In God's, one single can its end produce; Yet serves to second too, some other use.
206 페이지 - ... increasing the quantity of steam. The substance employed is known by the name of comings, being the radicles of barley, produced in the process of malting, which are separated before the malt is sent to market. About a bushel of these is thrown into the boiler, and when the steam is again raised, an immediate effect is visible; for there is not only a plentiful supply of steam to produce the full working speed of the engine, but an excess of it going waste at the safety valve: this singular effect...
123 페이지 - Now the distance of the centre of oscillation from the point of suspension...
113 페이지 - It is a pleasure to stand upon the shore and to see ships tossed upon the sea; a pleasure to stand in the window of a castle and to see a battle and the adventures thereof below; but no pleasure is comparable to the standing upon the vantage ground of truth (a hill not to be commanded, and where the air is always clear and serene), and to see the errors and wanderings and mists and tempests in the vale below; so always that this prospect be with pity, and not with swelling or pride.
176 페이지 - The hive is generally made out of a log of wood from two to three feet long, and eight or ten inches in diameter, hollowed out, and closed at the ends by circular doors, cemented closely to the wood, but capable of being removed at pleasure.
176 페이지 - ... the economy of the interior to more advantage. The honey is not contained in the elegant hexagonal cells of our hives, but in wax bags, not quite so large as an egg.
103 페이지 - ... 6 to 5. The following Table exhibits the relative adhesion of nails of various kinds, when forced into dry Christiana Deal, at right angles to the grain of the wood...
354 페이지 - Indeed, there is no machine or mechanism in which the little that theorists have done is more useless. The honour of bringing it to its present state of perfection, therefore, belongs to a different and more useful class. It arose, was improved and perfected by working mechanics — and by them only...