The Spanish Bowline was described by Clifford Ashley (ABOK # 1087, p 197) for use as a rescue tool. The two loops could be placed onto someone's legs and a conscious individual could hold the standing end and be raised up. Someone who has lost consciousness could still be affixed by using a secondary hitch to fasten the person's upper body to the standing end. One benefit of this knot is that its loops can feed slack into one another, making it perfect for fastening two objects of different size.
I mistakenly refer to this knot as the Portuguese Bowline toward the end, but it's the Spanish Bowline!
