Report on Machinery and Processes of the Industrial Arts and Apparatus of the Exact SciencesVan Nostrand, 1869 - 669 páginas |
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Página 14
... effect of external atmospheric pressure , and would probably lift it though its weight were very much greater . The extreme mechanical accuracy which the examples above described serve to illustrate , has been a consequence of the ...
... effect of external atmospheric pressure , and would probably lift it though its weight were very much greater . The extreme mechanical accuracy which the examples above described serve to illustrate , has been a consequence of the ...
Página 16
... effect in the industrial world , the steps by which this was accomplished did not succeed each other with great rapidity . The first impression which the invention produced was in the relief it brought to mining . Its influence was next ...
... effect in the industrial world , the steps by which this was accomplished did not succeed each other with great rapidity . The first impression which the invention produced was in the relief it brought to mining . Its influence was next ...
Página 26
... effect ; and the second , those which employ continually the same air , which is alternately heated and cooled but is not allowed to escape . The Ericsson engine which has been established among us for many years , and which , for minor ...
... effect ; and the second , those which employ continually the same air , which is alternately heated and cooled but is not allowed to escape . The Ericsson engine which has been established among us for many years , and which , for minor ...
Página 27
... effect . In practice this cycle is not usually completed ; and the same portion of the elastic medium is not made repeatedly serviceable . At a certain point of its expansion , the steam or the heated air is discharged into the ...
... effect . In practice this cycle is not usually completed ; and the same portion of the elastic medium is not made repeatedly serviceable . At a certain point of its expansion , the steam or the heated air is discharged into the ...
Página 28
... effect , is the following : First . The large expansion attendant on the conversion of water into steam with the volume due to the temperature and pressure of the boiler . Secondly . The dilatation of this steam with diminishing ...
... effect , is the following : First . The large expansion attendant on the conversion of water into steam with the volume due to the temperature and pressure of the boiler . Secondly . The dilatation of this steam with diminishing ...
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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
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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.