AstroMedia The Ferris Wheel 매뉴얼 - 페이지 2
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페이지 인쇄The Ferris Wheel
Wheels with seats to take passengers up and down are much
older than you would think: The oldest report mentioning such a
device is from an English traveller who saw one in 1620 in the
Bulgarian town of Plovdiv. For a long time these wheels had only
six or eight seats and were operated by hand. Therefore it was
important that the weight was evenly distributed. The first large
ferris wheel was shown at the Worldʼs Columbian Exposition
1893 in Chicago. It was over 80 metres tall, had 36 gondolas for
60 passengers each, and could therefore transport up to 2,160 (!)
people at the same time. It was constructed by the American
engineer G.W.G Ferris Jr., after whom these wheels are now
named.
This was the trigger for the construction of a number of ferris
wheels in the old world as well, some of which are still in
operation today, like the one built in 1897 in Viennaʼs Prater.
Gondola,
side wall
Hub
Driving wheel
Stand 1,
cross-beam
Stand 1,
right truss
Stand 1,
stanchion 1
In the 20th century stationary ferris wheels lost their attraction
until the London Eye started operating in the year 2000. At that
time it was the tallest wheel in the world, measuring 135m. The
current record holder is the Singapore Flyer, that can transport 28
people in each of its 28 gondolas to a height of 165m.
The AstroMedia Ferris Wheel follows in the tradition of tin models
meant to be driven by toy steam engines that were produced for
the children of wealthy families at the end of the 19th century.
To ensure the wheel can be driven by the moderate power of the
AstroMedia Steam Engine, the construction minimises friction as
much as possible and uses a gear reduction of 15:1. This means
that the diameter of the driving wheel fitted to the ferris wheel is
15 times as large as the diameter of the one fitted to the crank
shaft of the steam engine.
Rim 2
Rim 1
Gondola,
cubicle
Stand 2,
left truss
Mounting plate