Re: variable height unis

Ken Fuchs (kfuchs@winternet.com)
Fri, 2 Dec 94 20:58 CST

Sem Abrahams has (had) a unicycle with a folding frame designed
exactly as described except it had four folding sections instead of
one. It was adjustable from about 4 ft. to 10 ft. via a hydraulic
hand pump while riding it! It weighed 70-100 lbs. though.

The frame had the following general shape as viewed from the side:

\___/
| / <- hand pump for hydraulic jack
|/
| <- hose from hand pump to jack inside frame
|
* <- sprocket and pedals
/ \
/ |\ <- top of hydraulic jack
/ | \
o | * <- * = sprocket on each side (double chain drive)
\ | | /
\ | / <- bottom of hydraulic jack
\ /
*
/ \
/ \
/ \
* o
\ /
\ /
\ /
* <- may not have been sprockets here
/ \
/ \
/ \
o * <- 5 pairs of chains follow sprockets down to wheel
\ /
\ /
\ /
*
/ \
/ \
/ \
* o <- o = no sprocket on either side
\ /
\ /
\ /
(*) <- (*) = double sprocketed wheel

At least this is how I remembered it.

Sorry to say: Some of the krazy unicycling ideas have already been
made! Tom Miller made this one and many others.

Stay on Top,

Ken Fuchs <kfuchs@winternet.com>