This throw works by compromising the shoulder joint. Once you do this,
you can capture your opponent's
balance and throw them. It also ends up in a pretty nice pin. Please note
that while we use English terminology, some words are linked to our Japanese
Martial Arts glossary so that you can more easily look up these techniques
in other sources.
A basic way to do this is off of a straight punch which is parried with a double knife hand block and the arm captured. The arm is "wrapped" by pushing the opponents' hand/wrist towards their shoulder while maintaining a heavy hand or striking the joint of the elbow to encourage the arm to bend. The defenders' hand that is at the opponents' elbow, then grasps the other wrist. Torque is applied to the shoulder when the defender turns his/her hips and then shoulder girdle outwards (shown in the figure to the left). The throw is accomplished by dropping to one knee. For more information, this technique is analyzed in an article appearing in the Journal of Asian Martial Arts (1998) Volume 7, Number 1 by Brad Binder and Donald Coleman.
You can click on the small gif to see an animated gif of this technique (~ 40 KB). It will cycle 3 or 4 times.