Report on Machinery and Processes of the Industrial Arts and Apparatus of the Exact SciencesVan Nostrand, 1869 - 669 páginas |
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Página 51
... means of a second and smaller cylinder , provided with a piston which is connected with the crank of a working shaft . The lower part of this cylinder communicates with the heated extremity of the air cylinder . The air expanding under ...
... means of a second and smaller cylinder , provided with a piston which is connected with the crank of a working shaft . The lower part of this cylinder communicates with the heated extremity of the air cylinder . The air expanding under ...
Página 52
... means of which a more equal performance is maintained , and the weight of the fly - wheel is reduced . This engine , which seems admirably adapted to small industries requiring but a fraction of a single horse - power , is not , however ...
... means of which a more equal performance is maintained , and the weight of the fly - wheel is reduced . This engine , which seems admirably adapted to small industries requiring but a fraction of a single horse - power , is not , however ...
Página 56
... means . The expedient which appeared to them most promising was to use it for the purpose of creating a vacuum . In fact , if a comparatively small charge of gunpowder be exploded in a closed vessel furnished with valves freely opening ...
... means . The expedient which appeared to them most promising was to use it for the purpose of creating a vacuum . In fact , if a comparatively small charge of gunpowder be exploded in a closed vessel furnished with valves freely opening ...
Página 76
... means tenable . This ground is , that the latent heat taken up by ammonia when expelled from its aqueous solution is less than that of steam . As what we have denominated the economical coefficient of an engine driven by heat is ...
... means tenable . This ground is , that the latent heat taken up by ammonia when expelled from its aqueous solution is less than that of steam . As what we have denominated the economical coefficient of an engine driven by heat is ...
Página 105
... means to a suitable level . The construction of the engine , above de- scribed , will be understood from an examina- tion of Figs . 26 , 27 , and 28 : A , ( Fig . 26 , ) is the inner cylinder . B B mark the external cylinder , and C C ...
... means to a suitable level . The construction of the engine , above de- scribed , will be understood from an examina- tion of Figs . 26 , 27 , and 28 : A , ( Fig . 26 , ) is the inner cylinder . B B mark the external cylinder , and C C ...
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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
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.