I'm translating a book on bushcraft in English. There is a passage about the V notch that I am having a hard time understanding. It reads,
This notch helps lock a piece of cordage to the desired area of a toggle. It can also be used on a larger scale to keep material that is stacked from moving if the diameter of the notch is equal to the stacked material or if the piece of wood to be used in conjunction with this one is notched in the same fashion.
I can't picture the notch being used as described in my head.