Report on Machinery and Processes of the Industrial Arts and Apparatus of the Exact SciencesVan Nostrand, 1869 - 669 páginas |
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Página 10
... action of the rollers is then reversed after they have been by the action of screw levers brought closer together by about an inch . These again nip the plate and drag it back in an opposite direction , and again and again does the mass ...
... action of the rollers is then reversed after they have been by the action of screw levers brought closer together by about an inch . These again nip the plate and drag it back in an opposite direction , and again and again does the mass ...
Página 37
... action of the machine ; and inequality in this respect is still more important in the case of the supply piston . The peculiar ingenuity of this machine is in fact manifested most signally at this point . By means of the systems of ...
... action of the machine ; and inequality in this respect is still more important in the case of the supply piston . The peculiar ingenuity of this machine is in fact manifested most signally at this point . By means of the systems of ...
Página 38
... action . of the furnace heat ; a very large proportion of the molecules being brought into direct contact with the heated iron . That we may understand how this movement of the air is made forcibly necessary , we need only consider the ...
... action . of the furnace heat ; a very large proportion of the molecules being brought into direct contact with the heated iron . That we may understand how this movement of the air is made forcibly necessary , we need only consider the ...
Página 56
... action seem to have discouraged the attempt to apply it directly as a motive power . The earlier experimenters occupied them- selves with the endeavor to turn it to account by indirect means . The expedient which appeared to them most ...
... action seem to have discouraged the attempt to apply it directly as a motive power . The earlier experimenters occupied them- selves with the endeavor to turn it to account by indirect means . The expedient which appeared to them most ...
Página 57
... action of a powerful current of flame , which he proposed to create by the combustion of inflammable gas mingled in explosive proportions with common air . The gas was to be- generated by the destructive distillation of any combustible ...
... action of a powerful current of flame , which he proposed to create by the combustion of inflammable gas mingled in explosive proportions with common air . The gas was to be- generated by the destructive distillation of any combustible ...
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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.