Report on Machinery and Processes of the Industrial Arts and Apparatus of the Exact SciencesVan Nostrand, 1869 - 669 páginas |
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Página 7
... iron , no great flouring - mills for grain , could exist except in those rugged dis- tricts through which the mountain torrents make their way to the low- lands or the ocean . The broad and level tracts which form so vast a proportion ...
... iron , no great flouring - mills for grain , could exist except in those rugged dis- tricts through which the mountain torrents make their way to the low- lands or the ocean . The broad and level tracts which form so vast a proportion ...
Página 8
... Iron Works , Sheffield , England , caused to be rolled a plate surpassing in dimensions even the largest of the immense masses above spoken of ; its length being twenty feet , its breadth four feet , and its thickness fifteen inches ...
... Iron Works , Sheffield , England , caused to be rolled a plate surpassing in dimensions even the largest of the immense masses above spoken of ; its length being twenty feet , its breadth four feet , and its thickness fifteen inches ...
Página 9
... iron , fizzing , sparkling and shooting out jets of lambent flame , was by the main force of chains attached to the steam rollers drawn forth from the furnace on to a long wrought - iron car . The heat and light which it then diffused ...
... iron , fizzing , sparkling and shooting out jets of lambent flame , was by the main force of chains attached to the steam rollers drawn forth from the furnace on to a long wrought - iron car . The heat and light which it then diffused ...
Página 10
... iron truck , and drew it to the incline by main force , where it was left by its own weight to run into the jaws of the rolling - mill . It was then sauve qui peut among the workmen , who rushed for shelter in all directions as the mass ...
... iron truck , and drew it to the incline by main force , where it was left by its own weight to run into the jaws of the rolling - mill . It was then sauve qui peut among the workmen , who rushed for shelter in all directions as the mass ...
Página 11
... iron arm could direct a tool with a precision which the most practised human skill could never attain . The class of mechan- ical contrivances called machine tools came into existence ; and , in the manufacturing world at least , the ...
... iron arm could direct a tool with a precision which the most practised human skill could never attain . The class of mechan- ical contrivances called machine tools came into existence ; and , in the manufacturing world at least , the ...
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advantage amount angle apparatus applied armature atmosphere axis Bessemer process boiler calories carried cent centimetres circumference compression construction contrivance crank cubic metres cylinder diameter direction discharge disk distance effect electric employed engine equal exhibited experiments Exposition extremity feet force furnace furnished glass half heat horizontal horse-power hundred hydraulic hydraulic head illustrated inches increased instrument introduced invention inventor iron kilograms kilometres latent heat length lever light light-houses liquid machine manufacture means mechanical ment Messrs metal metres millimetres mode motion movable types movement necessary object observed operation ordinary Paris passes piston plate position pounds practical present pressure prism produced pulley pump purpose refrigerator reservoir revolution roller rotary engine rotation screw sextant shaft side Siemens space spherometer steam steam-engine steel surface telescope temperature tion tonometer tube turbine turn valve vapor velocity vertical vessel weight wheel Wicklow Head
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Página 31 - B with the sound velocity where y is the ratio of the specific heat at constant pressure to the specific heat at constant volume, and p is the gas pressure.