American Mechanics' Magazine, Volume 1C. S. Williams, 1825 - Technology |
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Page 6
... constructed , if necessary as to encircle five - elevenths of a circle . " The same Mr. Churchill is said to have invented a new and inge- nious hydraulic model ; its power for raising water bids fair to excel 66 We shall be happy to ...
... constructed , if necessary as to encircle five - elevenths of a circle . " The same Mr. Churchill is said to have invented a new and inge- nious hydraulic model ; its power for raising water bids fair to excel 66 We shall be happy to ...
Page 27
... construct- ed on proper principles , merely requires a pressure of steam equal to that of the atmos- phere , in order to drive out the atmospheric air , and to supply its place with steam , which , being condensed , forms the vacuum ...
... construct- ed on proper principles , merely requires a pressure of steam equal to that of the atmos- phere , in order to drive out the atmospheric air , and to supply its place with steam , which , being condensed , forms the vacuum ...
Page 31
... constructed upon the very same principles ; the primum mobile being an oil lamp , which rarifies the air , thus form- ing a kind of vacuum under a piston , from which the power proceeds . This is an in- controvertible fact , for I have ...
... constructed upon the very same principles ; the primum mobile being an oil lamp , which rarifies the air , thus form- ing a kind of vacuum under a piston , from which the power proceeds . This is an in- controvertible fact , for I have ...
Page 39
... constructed , that there would be no danger , even with a pressure of 150 pounds to the inch . Boil- ers may be made to withstand the pressure of 600 pound to the inch , and , if proved often enough to detect any defect occasioned by ...
... constructed , that there would be no danger , even with a pressure of 150 pounds to the inch . Boil- ers may be made to withstand the pressure of 600 pound to the inch , and , if proved often enough to detect any defect occasioned by ...
Page 42
... constructed as to allow of the whole breadth bearing at once ; and every portion in contact with the ground should roll on it without the least dragging or slide . But it is evi- dent , from the well - known properties of the cycloid ...
... constructed as to allow of the whole breadth bearing at once ; and every portion in contact with the ground should roll on it without the least dragging or slide . But it is evi- dent , from the well - known properties of the cycloid ...
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Common terms and phrases
acid angle applied ascer axis barometer boat body boiler boiling BROWN'S GAS canal carbonic acid carriage cast iron centre charcoal circle coal coal gas colour common constructed copper Correspondent cupel cylinder degrees diameter distance draw effect employed equal expense experiments feet fire fixed force friction given glass half heat horse improvement inches increase invention lamp length less lever light lime liquor Lond machine Magazine manufacture means mechanical melted ment metal method miles an hour mode motion move nerally observed obtained pass perpendicular piece pipe plates pounds pounds weight present pressure produced proportion pump purpose quantity quick lime quired railway readers ROYAL MINT scale screw ship side slider specific gravity square stay-sails steam engine steel sufficient surface tallow tion tube turned velocity vessel weight wheel windlass
Popular passages
Page 353 - The charm dissolves apace ; And as the morning steals upon the night, Melting the darkness, so their rising senses Begin to chase the ignorant fumes that mantle Their clearer reason.
Page 310 - ... injured brood. The barking of the dog, the mewing of the cat, the creaking of a passing wheelbarrow, follow with great truth and rapidity. He repeats the tune taught him by his master, though of considerable length, fully and faithfully. He runs over the...
Page 193 - Soon shall thy arm, unconquer'd Steam, afar Drag the slow barge, or drive the rapid car ; Or, on wide-waving wings expanded bear The flying chariot through the fields of air...
Page 37 - I have seen the water run like a constant fountain stream forty feet high ; one vessel of water rarefied by fire driveth up forty of cold water. And a man that tends the work is but to turn two cocks, that one vessel of water being consumed, another begins to force and re-fill with cold water, and so successively, the fire being tended and kept constant, which the self-same person may likewise abundantly perform in the interim between the necessity of turning the said cocks.
Page 317 - ... this point they were hid in darkness. The clanking of the chains, the groaning of the pumps, the hallooing of the miners, the creaking of the blocks and wheels, the trampling of horses, the beating of the hammers, and the loud and frequent subterraneous thunder from the blasting of the rocks by gunpowder, in the midst of all this scene of excavation and uproar, produced an effect which no stranger can behold unmoved. We descended with two of the miners, and our interpreter, into this abyss.
Page 209 - Come, bright Improvement ! on the car of Time, And rule the spacious world from clime to clime ; Thy handmaid arts shall every wild explore, Trace every wave, and culture every shore.
Page 310 - The plumage of the mocking-bird, though none of the homeliest, has nothing gaudy or brilliant in it ; and, had he nothing else to recommend him, would scarcely entitle him to notice; but his figure is well proportioned, and even handsome. The ease, elegance, and rapidity of his movements, the animation of his eye, and the intelligence he displays in listening and laying up lessons from almost every species of the feathered creation within his hearing, arc really surprising, and mark the peculiarity...
Page 318 - As we descended farther from the surface, large masses of ice appeared, covering the sides of the precipices. Ice is raised in the buckets with the ore and rubble of the mine : it has also accumulated in such quantity in some of the lower chambers, that there are places where it is fifteen fathoms thick, and no change of temperature above prevents its increase.
Page 310 - In his native groves, mounted on the top of a tall bush or half-grown tree, in the dawn of dewy morning, while the woods are already vocal with a multitude of warblers, his admirable song rises preeminent over every competitor. The ear can listen to his music alone, to which that of all the others seems a mere accompaniment.
Page 310 - ... for half an hour, or an hour, at a time. His expanded wings and tail, glistening with white, and the buoyant gaiety of...