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Outside of the north facing control room door is seen
beneath the open arch. |
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Detailed view of the skirt system. Note the double
layer of brushes used on both sides of the knee wall/skirt. This
prevents dust, blowing snow and *possibly* insects/rodents from
getting into the observatory/telescope area. The end wheel assembly
with its double set of red wheels can be seen. One wheel physically
touches the large, 6" diameter concave wheel that rides
on the rail. The clear red wheel does not touch the rail however
so it spins backwards in relation to the 6" wheel (shown
charcoal black above). The smaller wheel that spins is connected
to another small wheel that has brushes. This friction driven
system keeps the most volunerable section of the rail, the very
top/flattest surface, free from debris automatically. |
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The brush wheel can more easily be seen but
also note the angled piece that prevents the arch from being
lifted up by gales, to the right and below the round rail, from
viewer's perspective. |
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