Mechanics' Magazine and Journal of Enigneering, Agricultural Machinery, Manufacturing, and Shipbuilding, 2권Knight and Lacey, 1824 |
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25 페이지
... specting combination which now exist , both to the employers , and employed . All that is necessary is to have a law obliging parties to do that which they agree to do ; conceives that they should be left at per feet liberty . ( To be ...
... specting combination which now exist , both to the employers , and employed . All that is necessary is to have a law obliging parties to do that which they agree to do ; conceives that they should be left at per feet liberty . ( To be ...
107 페이지
... specting Copper Sheathing , I was induced to seek further information on this important subject . In the Encyclopædia Perthensis , I find , under the head of Sheathing , the following observation : " In the Cornish mines , copper or ...
... specting Copper Sheathing , I was induced to seek further information on this important subject . In the Encyclopædia Perthensis , I find , under the head of Sheathing , the following observation : " In the Cornish mines , copper or ...
113 페이지
... specting it , which have led to a result that well deserves to be laid before our readers . One very in- telligent correspondent , J. Y. , after describing how a puzzle of this sort could be made , was pleased to add- " But the taking ...
... specting it , which have led to a result that well deserves to be laid before our readers . One very in- telligent correspondent , J. Y. , after describing how a puzzle of this sort could be made , was pleased to add- " But the taking ...
252 페이지
... specting highly heated steam , when subject to great pressure . The little I am able to conceive of the matter is , that when so confined , and exposed to such excessive pressure , the bub- bles never become large enough to cause that ...
... specting highly heated steam , when subject to great pressure . The little I am able to conceive of the matter is , that when so confined , and exposed to such excessive pressure , the bub- bles never become large enough to cause that ...
284 페이지
... specting the cause of dry - rot are extremely various ; but the most general is , that it arises from the use of oak timber felled in Summer , and not being sufficiently seasoned . But as the bark of a tree felled in Winter is useless ...
... specting the cause of dry - rot are extremely various ; but the most general is , that it arises from the use of oak timber felled in Summer , and not being sufficiently seasoned . But as the bark of a tree felled in Winter is useless ...
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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...