Twentieth century inventions, a forecastLongmans, Green, and Company, 1901 - 286 páginas |
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Página 7
... object is to make money . Thus the most qualified experts in patent law and practice do not fail to disclose this fact to those who seek their professional advice in a money- making spirit , as the great majority of inventors do . The ...
... object is to make money . Thus the most qualified experts in patent law and practice do not fail to disclose this fact to those who seek their professional advice in a money- making spirit , as the great majority of inventors do . The ...
Página 29
... object was to get an initial speed which would be so great as to admit of the coupling of the dynamo to the revolving shaft of the turbine steam - motor , without the employment of too much reducing gear . the case of the wind - motor ...
... object was to get an initial speed which would be so great as to admit of the coupling of the dynamo to the revolving shaft of the turbine steam - motor , without the employment of too much reducing gear . the case of the wind - motor ...
Página 30
... object of determining this point , the fixed windmill being applied to work which rendered it a matter of indiffer- ence in which way the wheel ran . With the prevailing winds from the west it ran in one direction , and with those of ...
... object of determining this point , the fixed windmill being applied to work which rendered it a matter of indiffer- ence in which way the wheel ran . With the prevailing winds from the west it ran in one direction , and with those of ...
Página 34
... object of determining the pressure which the wind exerts on the cup of a " Robinson " anemometer have shown that when the breeze blows into the concave side of the cup , its effect is rather more than three times as strong as when it ...
... object of determining the pressure which the wind exerts on the cup of a " Robinson " anemometer have shown that when the breeze blows into the concave side of the cup , its effect is rather more than three times as strong as when it ...
Página 43
... object of providing for this feature , it becomes virtually a 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 ...
... object of providing for this feature , it becomes virtually a 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 ...
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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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