Twentieth century inventions, a forecastLongmans, Green, and Company, 1901 - 286 páginas |
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Página 35
... steel ropes to stakes securely set in the ground . The dynamo is then placed at the lower bear- ing and protected from the weather by a metal shield through which the shaft of the axis passes . For pumping , and for other simple ...
... steel ropes to stakes securely set in the ground . The dynamo is then placed at the lower bear- ing and protected from the weather by a metal shield through which the shaft of the axis passes . For pumping , and for other simple ...
Página 43
... steel drum having bevelled steps accurately cut longitudinally upon its periphery . The masts of a ship tend to assume a posi- tion at right angles to the water - line . When the waves catch the vessel on the beam the greatest degree of ...
... steel drum having bevelled steps accurately cut longitudinally upon its periphery . The masts of a ship tend to assume a posi- tion at right angles to the water - line . When the waves catch the vessel on the beam the greatest degree of ...
Página 47
... steel pipe offers less re- sistance than a wooden beam of equal strength , besides facilitating the use of a simple device for enabling the frame and buoys to slide easily up and down . The generally fatal defect of those inventions ...
... steel pipe offers less re- sistance than a wooden beam of equal strength , besides facilitating the use of a simple device for enabling the frame and buoys to slide easily up and down . The generally fatal defect of those inventions ...
Página 74
... steel shafts running in bearings swathed in oil it has been found possible to utilise the comparatively feeble force of a small steam jet operating at immense speed to produce one of much slower rate but enormously greater strength ...
... steel shafts running in bearings swathed in oil it has been found possible to utilise the comparatively feeble force of a small steam jet operating at immense speed to produce one of much slower rate but enormously greater strength ...
Página 79
... steel shaft of the steam - driven turbine . No matter how high may be the speed , the liquid cannot be thrown out from a spherical revolving receptacle con- structed in this way . Moreover , the mercury acts not only as a transmitter of ...
... steel shaft of the steam - driven turbine . No matter how high may be the speed , the liquid cannot be thrown out from a spherical revolving receptacle con- structed in this way . Moreover , the mercury acts not only as a transmitter of ...
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Términos y frases comunes
adopted already alternate current apparatus appliances application B.Sc BOTANY buoy cable calcium carbide carrying cheap CHEMISTRY collectivism College Coloured compressed air constructed convenient course Crown 8vo D.Sc Diagrams direction driving dynamo economical effect electric current electric lighting ELEMENTARY energy engine fact force future heat Hospital Illustrations improvement industrial INORGANIC CHEMISTRY invention inventor JOHN TYNDALL kind latter Lecturer LL.D lodes Lond machine machinery MAGNETISM Manual means mechanical ment metal methods miner mining motion motor natural naval nineteenth century numerous operation PHYSIOLOGY piano pipe Plates practically principle Professor progress pumping purposes R. A. PROCTOR rail railway render road Royal 8vo running sail Science screw shaft ship side speed station steam steam-engine steel storage battery STRENGTH OF MATERIALS suitable tank telegraphy TEXT-BOOK tion traction traction engines truck turbine twentieth century utilised ventilation vessel wave-power waves wheel wind windmill wire Woodcuts
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