Mechanics' Magazine and Journal of Enigneering, Agricultural Machinery, Manufacturing, and Shipbuilding, 2권Knight and Lacey, 1824 |
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235 페이지
... condenser and hoop suggested by your correspon- dent , I conceive to be most ingeni- ous contrivances . The condenser , however , in the hands of an ignorant aëronaut would be attended with great danger , and I would propose , If a , b ...
... condenser and hoop suggested by your correspon- dent , I conceive to be most ingeni- ous contrivances . The condenser , however , in the hands of an ignorant aëronaut would be attended with great danger , and I would propose , If a , b ...
372 페이지
... condenser , speaks of it as if applied to Newcomen's Engine . This , however , does not appear ever to have Leen contemplated by Mr. Watt : in a note he says , From the first I proposed to act npon the piston with steam instead of the ...
... condenser , speaks of it as if applied to Newcomen's Engine . This , however , does not appear ever to have Leen contemplated by Mr. Watt : in a note he says , From the first I proposed to act npon the piston with steam instead of the ...
373 페이지
... condenser was made of two pipes of tin plate , ten or twelve inches long , and about a sixth of an inch in diameter , placed perpendicularly , and communicating at top with a short horizontal pipe of large diameter , shut at its upper ...
... condenser was made of two pipes of tin plate , ten or twelve inches long , and about a sixth of an inch in diameter , placed perpendicularly , and communicating at top with a short horizontal pipe of large diameter , shut at its upper ...
374 페이지
... condenser h ; when the cylinder becomes sufficiently heated , the steam will de- scend into the condenser , and from its Jess gravity occupying the upper portion , will expel all the air through the blow- ing valve f , which may have ...
... condenser h ; when the cylinder becomes sufficiently heated , the steam will de- scend into the condenser , and from its Jess gravity occupying the upper portion , will expel all the air through the blow- ing valve f , which may have ...
375 페이지
elevate the water and the condenser pump . " The operation of the condenser pump is very simple . The water which spouts into the condenser through the injection- cock N , increased by the very small quantity arising from condensation ...
elevate the water and the condenser pump . " The operation of the condenser pump is very simple . The water which spouts into the condenser through the injection- cock N , increased by the very small quantity arising from condensation ...
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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...