The Mechanics' Magazine, Museum, Register, Journal, and Gazette, Zväzok 21M. Salmon, 1834 |
Vyhľadávanie v obsahu knihy
Výsledky 1 - 5 z 65.
Strana 2
... pressure by means of screws . It is attended with the following advantages : -First , all hazard of breaking the glass during the application of the pressure is avoided ; when loose weights are used one will sometimes slip out of the ...
... pressure by means of screws . It is attended with the following advantages : -First , all hazard of breaking the glass during the application of the pressure is avoided ; when loose weights are used one will sometimes slip out of the ...
Strana 3
... pressure . Fig . 5 is an end view , or elevation , of a portable bed , for silvering small glasses , and is Mr. Farrow's original invention ; it has wooden sides kk raised above the bed , in which the several wooden clamping- bars g g ...
... pressure . Fig . 5 is an end view , or elevation , of a portable bed , for silvering small glasses , and is Mr. Farrow's original invention ; it has wooden sides kk raised above the bed , in which the several wooden clamping- bars g g ...
Strana 9
... pressure steam - engines are now made , which stand upon 3 feet square , consume about 1 cwt . of coal a - day , and will hoist with sufficient rapidity 25 ewt . to any height , they are also sufficiently port- able to be moved about in ...
... pressure steam - engines are now made , which stand upon 3 feet square , consume about 1 cwt . of coal a - day , and will hoist with sufficient rapidity 25 ewt . to any height , they are also sufficiently port- able to be moved about in ...
Strana 25
... pressure on the plane . For instance , if L be the length , B the base , and E the elevation , at an angle of 45 ° , E is equal to B ; and although the pressure on the plane is XL , yet the tendency to descend is E L B L XL ; the one ...
... pressure on the plane . For instance , if L be the length , B the base , and E the elevation , at an angle of 45 ° , E is equal to B ; and although the pressure on the plane is XL , yet the tendency to descend is E L B L XL ; the one ...
Strana 55
... pressure of English competition ; they have demanded the most absolute exclusion of English yarns and manufactured goods , and in addition they have declared that a com- pliance with these demands will not save them from ruin ARE NOT ...
... pressure of English competition ; they have demanded the most absolute exclusion of English yarns and manufactured goods , and in addition they have declared that a com- pliance with these demands will not save them from ruin ARE NOT ...
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apparatus appears applied Argand burner bees boat boiler canal carbon carbonic acid carriage centre chimney coal coal-tar column combustion communication consequence constructed copper cotton cylinder diameter diurnal motion effect employed engine England equal experiments explosive feet flame Fleet-street flue fluid friction gas bladder Glasgow glass heat hive hydrogen improvements inches inclined plane invention iron Journal labour lamp less lever light London machine machinery Magazine manufacture means Mechanics ment mercury Messrs metal miles mills mode months to specify motion mules Mulhausen Nutt Nutt's obelisk observed operation oxygen pass patent persons piece piston plate present pressure principle produced propelled pulleys purpose quantity railway rendered Saint Augustin screw side six months spindles spinner spinning steam steam-engine strychnia supposed surface Symington thick threads tion tube vapour velocity vessel weight wheel whole William Symington
Populárne pasáže
Strana 126 - As in mathematics, so in natural philosophy, the investigation of difficult things by the method of analysis, ought ever to precede the method of composition. This analysis consists in making experiments and observations, and in drawing general conclusions from them by induction, and admitting of no objections against the conclusions, but such as are taken from experiments, or other certain truths. For hypotheses are not to be regarded in experimental philosophy.
Strana 296 - There is a pleasure in the pathless woods, There is a rapture on the lonely shore. There is society where none intrudes, By the deep sea, and music in its roar; I love not man the less, but nature more...
Strana 128 - These results are best explained by considering the nature of the flame of combustible bodies — which, in all cases, must be considered as the combustion of an explosive mixture of inflammable gas, or vapour and air...
Strana 427 - The difference between the time shown by the sidereal clock, at the transit, and the right ascension of the body, taken from the almanack, will, therefore, be the error of the clock, + , or too fast, when the clock time is greater than the right ascension, — , or too slow, when it is less.
Strana 96 - Arcana of Science and Art ; or, an Annual Register of Useful Inventions and Improvements...
Strana 380 - His gradual rise from the stonemasons' and builders' yard to the top of his profession in his own country, or, we believe we may say, in the world, is to be ascribed not more to his genius, his consummate ability, and persevering industry, than to his plain, honest, straight-forward dealing, and the integrity and candour which marked his character throughout life.
Strana 221 - ... in the common concerns of commerce, should be claimed by many contending nations, is what would naturally be expected. * * * All Arabian authors on arithmetic appear to agree that the first writer of that country upon this system of arithmetic was Mohammed ben Muza, the Khuwarezmite, who flourished about the year 900. This writer is celebrated for having introduced among his countrymen many important parts of the science of the Hindoos, to the cultivation of which he was devotedly attached ;...
Strana 234 - The enormous magnitude of these bodies," he remarks, "and consequent probable mass (if they be not hollow shells), may give them a gravitating energy, which, however rare we may conceive them to be, may yet be capable of retaining in orbits, three or four times their own diameter, and in periods of great length, small bodies of a stellar character.
Strana 124 - To all whom it may concern: Be it known, that I, Ross Winans, civil engineer, of the city of Baltimore, in the State of Maryland, have invented a new and useful improvement in the construction of cars or carriages intended to travel upon...
Strana 10 - The Woolcombers' Union has been celebrated above a century, and several Acts of Parliament have been passed with the object of suppressing the power which it had acquired, and exercised with the usual bad consequences. Hence, many endeavours have been made to comb wool entirely by machinery, but with very partial success, till last year, when the whole of the combers in a large factory struck, upon which the proprietors turned their attention to this machine, applied their skill and capital to its...