Twentieth century inventions, a forecastLongmans, Green, and Company, 1901 - 286 páginas |
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Página 30
... motion , pumping , grinding , or driving any suitable class of machinery . It is rather surprising to find how relatively small is the advantage possessed by the vane- windmill over the fixed type in the matter of continuity of working ...
... motion , pumping , grinding , or driving any suitable class of machinery . It is rather surprising to find how relatively small is the advantage possessed by the vane- windmill over the fixed type in the matter of continuity of working ...
Página 36
... motion by a set of small paddles working horizon- tally . Into the water a vertically - working paddle - wheel dips , carrying on its shaft a crank which directly drives the pump . This simple wind - motor is particularly safe in a ...
... motion by a set of small paddles working horizon- tally . Into the water a vertically - working paddle - wheel dips , carrying on its shaft a crank which directly drives the pump . This simple wind - motor is particularly safe in a ...
Página 37
... constancy as the ocean billows . Shakes- peare takes as his emblem of perpetual motion the dancing " waves o ' th ' sea " . But the ocean coasts - where alone natural wave - power is constant - are exactly the loca- NATURAL POWER . 37.
... constancy as the ocean billows . Shakes- peare takes as his emblem of perpetual motion the dancing " waves o ' th ' sea " . But the ocean coasts - where alone natural wave - power is constant - are exactly the loca- NATURAL POWER . 37.
Página 39
... motion for a fly - wheel from a reciprocating motion in the cylinders . In the application of wave- power provision must be made for the utilisa- tion of NATURAL POWER . 39.
... motion for a fly - wheel from a reciprocating motion in the cylinders . In the application of wave- power provision must be made for the utilisa- tion of NATURAL POWER . 39.
Página 40
... motion to the pulley on top of the derrick must be converted into an additional impetus to a fly - wheel always running in the same direction . The spur - wheel and ratchet , as at present largely used in machinery , offer a rough and ...
... motion to the pulley on top of the derrick must be converted into an additional impetus to a fly - wheel always running in the same direction . The spur - wheel and ratchet , as at present largely used in machinery , offer a rough and ...
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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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