I'm looking for info or a drawing of a Fletcher joint and that may not be 
the correct spelling of Fletcher. It is a joint with two rings and two 
cross wires and has zero friction.
Thanks --
Regards, Steve Hammond

-----Original Message-----
From:	meredithlamb [SMTP:meredithlamb@..............
Sent:	Friday, November 22, 2002 10:00 PM
To:	psn-l@..............
Subject:	Re: Another horizontal boom/mast pivot to consider

Hi all,

I read plus's and minus's into this topic.....ball v/s torsion pivots.

Perhaps a part of the aspect of a torsion pivot is that it likely is a
type of somewhat unstable double pivot pendum in essense, one
at the top (of the mast) and the lower torsion wires flexible movement
itself.  There is a name for such, but a brief search engine search
yielded nothing for the moment.

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