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The Genesis of Electric Rotating
Equipment
The discovery of a natural
source of electricity by Benjamin Franklin in 1742 was followed by a century
of investigation as to its nature and uses. The names of several early
experimenters were given the properties and measurements they discovered --
the Italians, Luigi Galvani and Count Alessando Volta; Frenchman Andre
Marie Ampere; German Georg Simon Ohm; and American Joseph Henry. Those
within the elevator industry often unconsciously use the names of these
pioneers when speaking of electrical applications and measurements galvanic,
volt, ampere, ohm and henry. Thereafter, the thrust of scientists and
engineers was to discover practical ways to generate, transmit and utilize
what obviously could become a servant more powerful than steam, gas or
hydraulics. Steam and gas power had been of little use to the elevator
industry until a way was found to transfer its force into rotary motion
and this goal next to the provision of illumination was primary to
many inventors, not least of all the English physicists, Michael Faraday
and William Sturgeon. The story of the race to develop practical electric
rotating equipment will be explained graphically within this Gallery in
the near future. For now, we will jump ahead to the development of the
first electric elevator and merely comment that electricity provided the
means of delicately controlling the ever-swifter movement of passengers
and goods, along with a redundancy of safety devices, in addition to the
motors that allowed travel ever further and faster. Electricity's effect
upon lighting, air-conditioning and safe, swift, well-controlled elevators
made the skyscraper possible. However, as will be seen in this Wing, the
road had a number of rocky spots and a few detours before the ultimate
goal was reached.
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