h a l f b a k e r ynon-lame halfbakery tagline
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No matter how well I wipe my feet at the mat, I still manage to bring the outside in, thanks to the deep treads in my sneaker.
Imagine, though, if you will, a sneaker sole made from two separate, interlocking treads. A dial on the side of the shoe retracts the first while simultaneously extending
the second. two passes on the mat, and your clean as a whistle!
[link]
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What about if the 'tread' was above
a smooth flexible membrane. You
then dial in/out the knobbly bits
when you want grip and dial them
back in to make the surface flat.
The membrane is there so all that
dog-do, fag-butt, sticky-bud and
chewing gum will not get stuck
between the two sets of tread. |
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Alternatively, in my house shoes
are not allowed in past the hall.
BOOTS OFF! A very sensible
practice from the East (I am
amazed watching Friends etc when
they lie on the sofa or bed with
skanky sneakers on! - yuck!) |
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Imagine two combs, tines facing each other, but out
of sync so that the tines of one line up with the gaps
ofr the other. The same mechanical action raises
one comb and lowers the other, so that when one
comb is the positive tread, the other is the negative
tread. |
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Or is that even more obtuse? I can't tell anymore... |
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while I think this is an amusing concept, I think those loose-ish tines would wear away quite quickly. make 'em metal. |
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Better still, wear platform shoes with thick treads within the platform. As the treads wear down, use a lip-stick-like screw to feed more out. Also retractable for cleaning purposes. |
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