Page 193 - Geoffrey Budworth, Jason Dalton "The Little Book of Incredibly Useful Knots"

Poldo tackle

This ingenious tensioning device has been around in one form or another since at least the

eighteenth century; and is named after Poldo Izzo, an Italian sailing instructor. It can be applied
to a clothesline, a tent guy-line, or in any other situation where a taut line must periodically be
slackened off, then tightened again.

Tie an angler’s loop (see pages 110–111) in one end of a line, which must be at least three times the

length of the required range of movement in the completed tackle (1). Pass the other end through
the knotted eye, leaving a large running loop (2), then make a second loop by passing the working
end through the first loop (3). Tie another angler’s loop (4). To apply tension, pull the two knots
apart; to release it, push them together.