Report on Machinery and Processes of the Industrial Arts and Apparatus of the Exact SciencesVan Nostrand, 1869 - 669 páginas |
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Página iii
... entirely satisfactory execution of a task like that here presented could be reasonably expected only from the co - operation of a number of individuals , severally quali fied , by previous familiarity with the different departments of ...
... entirely satisfactory execution of a task like that here presented could be reasonably expected only from the co - operation of a number of individuals , severally quali fied , by previous familiarity with the different departments of ...
Página 3
... entirely mechanical , without considering whether or not it might be accomplished in a better or a simpler way ; but it is also true that the most useful modifications of many industrial processes and machines have been the suggestions ...
... entirely mechanical , without considering whether or not it might be accomplished in a better or a simpler way ; but it is also true that the most useful modifications of many industrial processes and machines have been the suggestions ...
Página 5
... entirely new character , or whose stimulating influence makes itself felt throughout all industries ; but the current never sets backward , and whatever is gained from each of these extraordinary impulses remains a permanent acquisition ...
... entirely new character , or whose stimulating influence makes itself felt throughout all industries ; but the current never sets backward , and whatever is gained from each of these extraordinary impulses remains a permanent acquisition ...
Página 11
... entirely disappeared . With this change , also , there ceased to be a limit to the improvement of mechanical art , short of abso- lute perfection . Accuracy of workmanship has now reached a point at which the gradations of difference in ...
... entirely disappeared . With this change , also , there ceased to be a limit to the improvement of mechanical art , short of abso- lute perfection . Accuracy of workmanship has now reached a point at which the gradations of difference in ...
Página 28
... entirely converted into work , and is the exact equivalent of the work done in this part of the cycle . During the second no heat is received or given up : but the temperature falls , and the work done is the equivalent of the heat ...
... entirely converted into work , and is the exact equivalent of the work done in this part of the cycle . During the second no heat is received or given up : but the temperature falls , and the work done is the equivalent of the heat ...
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Términos y frases comunes
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
Pasajes populares
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.