Page 105 - Mario Bigon "The Morrow Guide to Knots"

TARBUCK KNOT

This knot, developed for
climbers, is used when the
rope will be subject to heavy
or sudden strains. It is easy to
undo and does not chafe.
Method
Pass the end into the ring
from below to form a loop;
make a series of turns around
the standing part towards the
loop in a clockwise direction
(1), Bring the end back down
to the base of the turns and
make another clockwise turn
(2); then tuck the end back
under itself (3),