Page 45 - Mario Bigon "The Morrow Guide to Knots"

CLOVE HITCH
Using two overlapping
half hitches

This method is used in sailing
for mooring on bollards at the
quayside, or in camping to
tighten the guy ropes if the
loops can be dropped over
the post.

Method
Make a large loop or hitch
with the standing part below
(1). Hold the loop securely
with the left hand and drop it
over the post (2). Allowing
sufficient length for a second
loop, grasp the standing part
and twist your wrist upwards
and counterclockwise to form
a second loop (3, 4); the
standing part should now be
underneath. Hold the loop
thus formed securely with the
thumb and forefinger and
drop it over the post (5). Pull
the two ends of the rope to
tighten the knot (6). You
should check frequently to be
sure the knot is holding and
not slipping.