Iron: An Illustrated Weekly Journal for Iron and Steel Manufacturers, Metallurgists, Mine Proprietors, Engineers, Shipbuilders, Scientists, Capitalists ..., Volum 6Perry Fairfax Nursey Knight and Lacey, 1827 |
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Side 10
... wheel should be 24 feet diameter , and the wheel , G , 20 feet . The Italian , deceived by his own thoughts , conceived that as much water . would be raised by this pump as would keep the wheel perpetually in motion ; because , he said ...
... wheel should be 24 feet diameter , and the wheel , G , 20 feet . The Italian , deceived by his own thoughts , conceived that as much water . would be raised by this pump as would keep the wheel perpetually in motion ; because , he said ...
Side 11
... wheel , from the centre of which should be suspended very adaptation of length might itself a pole of adequate length , which effect the purpose upon the principle of the lever . The spokes of this wheel should be made of the lightest ...
... wheel , from the centre of which should be suspended very adaptation of length might itself a pole of adequate length , which effect the purpose upon the principle of the lever . The spokes of this wheel should be made of the lightest ...
Side 18
... wheel , and place as many teeth on the plate to which it is fixed , oppo- site the same places , and at such a distance from it as to take into the teeth of the second , on the outside , when it passes the blank places in the first ...
... wheel , and place as many teeth on the plate to which it is fixed , oppo- site the same places , and at such a distance from it as to take into the teeth of the second , on the outside , when it passes the blank places in the first ...
Side 19
... wheel moving on a pin , the teeth of which are two less in number than those of the rack . On this is fixed an eccentric chuck , which screws out either way , forward or backward . I have since invented an engine which turns circles ...
... wheel moving on a pin , the teeth of which are two less in number than those of the rack . On this is fixed an eccentric chuck , which screws out either way , forward or backward . I have since invented an engine which turns circles ...
Side 25
... wheels , for conveying the mo- tion to the cranks . D , a large vane , to turn round with the wind ; it is made fast to an iron shaft , and at the bottom of the shaft is a bevel wheel , which only turns when the wind changes , along ...
... wheels , for conveying the mo- tion to the cranks . D , a large vane , to turn round with the wind ; it is made fast to an iron shaft , and at the bottom of the shaft is a bevel wheel , which only turns when the wind changes , along ...
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Populære avsnitt
Side 493 - A ray of heavenly light, gilding all forms Terrestrial in the vast and the minute ; The unambiguous footsteps of the God, Who gives its lustre to an insect's wing, And wheels His throne upon the rolling worlds.
Side 418 - And understood not that a grateful mind By owing owes not, but still pays, at once Indebted and discharged...
Side 318 - Merchant, (in consequence of a Communication made to him by a certain Foreigner residing abroad) for an Invention of certain Improvements in the Construction of Locks and other Fastenings.
Side 541 - There is no art or science that is too difficult for industry to attain to; it is the gift of tongues, and makes a man understood and valued in all countries...
Side 154 - Then take a quantity of dry powder of wood-ashes mixed with a sixth part of the same quantity of the ashes of burnt bones ; put it into a tin box with holes in the top, and shake the powder on the surface of the plaster till the whole is covered...
Side 50 - But the flights of poetry can seldom bear to be shackled by . homely truth, and if we are to receive the fine imagery, that places the summit of this rock in clouds brooding eternal mists and tempests, — that represents it as inaccessible, even to a man provided with twenty hands and twenty feet, and immerses its base among ravenous sea-dogs ; — why not also receive the whole circle of mythological dogmas of Homer, who, though so frequently dragged forth as an authority in history, theology,...
Side 236 - To avoid this inconvenience and waste, a brewer of the name of Harwood conceived the idea of making a liquor, which should partake of the same united flavours of ale, beer, and two-penny; he did so, and succeeded, calling it entire...
Side 396 - ... however, as his thoughts had been for some time chiefly employed upon optics, he made his discoveries in that science the subject of his lectures for the first three years after he was appointed mathematical professor ; and having now...
Side 269 - ... below the summits of the rocks, and then rose above them, the only time for landing was the moment it gained the level of the coast — a circumstance which rendered the attempt extremely nice and hazardous. " Both sledges, however, succeeded in gaining the shore, and were drawn up on the beach, though not without great difficulty. Scarcely had they reached it, when that part of the ice...
Side 117 - ... parts on each side of the middle. These are the principal divisions, and each of them is subdivided into halves and quarters. Across the middle is fixed one of the smallest needles I could procure to serve as an axis, and it is fixed in its place by means of a little sealing wax.