Mechanics' Magazine and Journal of Enigneering, Agricultural Machinery, Manufacturing, and Shipbuilding, 2권Knight and Lacey, 1824 |
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18 페이지
... piston , piston- rod , parallel motion , a beam , fly- wheel and crank , a pair of nozzles , and a two - way cock connected with the main pipe , with each side of the piston in the cylinder , and with a pipe to take off the waste water ...
... piston , piston- rod , parallel motion , a beam , fly- wheel and crank , a pair of nozzles , and a two - way cock connected with the main pipe , with each side of the piston in the cylinder , and with a pipe to take off the waste water ...
45 페이지
... piston of ten inches diameter , with a force of 10,200 pounds ; with pure water , it would only act with 8,000 pounds . To form ten six - feet strokes per minute , it would require , if working double , 400 gallons per minute . Until a ...
... piston of ten inches diameter , with a force of 10,200 pounds ; with pure water , it would only act with 8,000 pounds . To form ten six - feet strokes per minute , it would require , if working double , 400 gallons per minute . Until a ...
46 페이지
... piston , which , on the metal being introduced , is made to press on it with any required force . It is stated that castings obtained in this way are not only free from the imperfections generally incurred in the usual mode , but have a ...
... piston , which , on the metal being introduced , is made to press on it with any required force . It is stated that castings obtained in this way are not only free from the imperfections generally incurred in the usual mode , but have a ...
90 페이지
... piston , and the length of the stroke . But , as a perfect vacuum cannot be made , and there is a great friction of the piston in the cylinder , air - pump , & c . , the actual labour is only about grds of the calculation by theory ...
... piston , and the length of the stroke . But , as a perfect vacuum cannot be made , and there is a great friction of the piston in the cylinder , air - pump , & c . , the actual labour is only about grds of the calculation by theory ...
91 페이지
... Piston , 32 inches diameter . 32 = - Su . in . 1024 X 7854 = 604-25 for atmospheric engine of 15 == 9 = = = area ; lbs . working pressure ; lbs . the engine will lift ; length in feet ; x by piston 72381 6 x by No. of strokes per min ...
... Piston , 32 inches diameter . 32 = - Su . in . 1024 X 7854 = 604-25 for atmospheric engine of 15 == 9 = = = area ; lbs . working pressure ; lbs . the engine will lift ; length in feet ; x by piston 72381 6 x by No. of strokes per min ...
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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...