I don't know anything about the retractor cord, but the bridle generally looks like the combined "bridle" and "retractor cord" as shown in your diagram. Generally though, a Bridle is symmetrical, and a topping lift
(or "uphaul") attached to the midpoint of the bridle. An uphaul is much like a halyard
, but usually attached to a block 3/4 the way up the mast, and is used to support the pole.
When "end-for-end" jibing the spinnaker
pole the bridle and uphaul keep the pole from dropping onto the deck
and keep the ends at the proper height to re-attach to the mast ring and spinnaker
guy (or sheet). The uphaul also lets you adjust the pole height so you can trim the spinnaker. There may be a downhaul attached to a second bridle, also to control the pole height.
I just did a quick Google
search for "spinnaker pole" and found this: http://www.bostonharborsailing.com/r...kerclassv1.pdf
. There are hundreds (if not thousands) of pages, documents, and books
on-line that describe how to sail with a spinnaker and rig the pole.