He was the first author to publish several knots, including what are now called Ashley's stopper knot and Ashley's bend.
It has been used in making stopper knots where lariats are used.
A stopper knot is added to prevent the free end from working its way back through the hitch.
The stevedore knot is a stopper knot, often tied near the end of a rope.
To raise and lower cargo they used large blocks and these required a larger stopper knot to prevent the line from running completely through the block.
The line at the rod's tip needs to have a stopper knot, which will hold the cow hitch in place.
When a stopper knot is tied outside another knot and around the standing part it can also be called a backup knot.
A type of stopper knot is called the stevedore knot.
It is sometimes said that if enough of a tail is left to tie a stopper knot, the stopper becomes unnecessary.
It is often used as a stopper knot at the end of a rope.