[TowerTalk] double figure 8 bend

[Eric Scace K3NA]

   A while back Ian G3SEK mentioned in a posting:

"Darrel Van Buer wrote:
>Climbers seem to prefer the double figure 8 bend - it's work to tie and
>really hard to untie, but virtually nuke-proof as far as coming undone
>accidentally.
>
Absolutely - even in slick plastic rope after years of use, figure-of-
eight knots still don't even think about coming loose. They have the
advantages of a fairly straight pull out of the knot (minimizing loss of
strength in the rope) combined with a lot of friction inside the knot. Tied on a doubled-over end of rope, the figure-of-eight makes
a very
strong loop. To join two ropes, tie a loose figure-of-eight on one end;
then thread the other rope into it from the opposite end, keeping
parallel with the first rope to make a second interlocking figure-of-
eight."

   I've done a search for "double figure 8 bend" on the web and can't find any other references to this knot.

   From the description, it's possible that the description is a double sheet bend or a knot variously known as a Carrick bend,
Josephine knot, or anchor bend.  When tied correctly, this appears to be a very highly regarded mechanism for joining two lines
together temporarily.  However, it must be done correctly!

   Can someone clarify?

   Thanks.

-- Eric K3NA