The "Al Baker Lightning Pull" (that's really how he spelled it) is very simple and extremely fast. Mr. Carney made some small modifications to bring it up to date (like substituting fishing line for catgut and introducing velcro to allow for some adjustment), but the design of the pull is not the most interesting part of Mr. Carney's pamphlet. I'll tell you how to make one. In his booklet, Mr. Carney gives all of the details about how to attach the pull to something (like a handkerchief) in a natural way. This "real work" that comes from John Carney's experience and insight is what makes the booklet brilliant.
Let me describe the pull to you so that you can compare it with any other pull. It's made of four pieces. The first piece is a loop of fabric that fits on your left forearm. It wraps around like a [censored]. It should fit snuggly about six inches above your wrist, so that you can shove your coat sleeve up a bit and it will not show. This is the piece that Mr. Carney attached the velcro to, so that it could be adjusted.
The next piece is a loop of silk ribbon (or a shoestring, in Mr. Baker's original version). The ends of the loop must be sewn to each other, not tied. It is linked to the first piece like two interlinked rings. The loop is very short; it runs along your left forearm to your left elbow.
The third piece is a loop of elastic. The loop is eighteen inches long (so it takes about thirty-six inches of elastic). Again, the ends must be sewn together and it is linked to the second piece.
The last piece is a loop of fishing line. It links through the elastic and the ends are tied together. Experiment to find the right length. After making the loop, tie a knot in it so that a smaller loop (about two inches long) is left at the end.
Use a couple of safety pins to attach a half inch diameter plastic ring to your coat in the inside right armpit. Strap the pull onto your left forearm, put your left sleeve of your coat on, then thread the fishing line through the ring pinned to your coat. Put the small loop at the end of the fishing line over your middle finger and put on your right sleeve. The pull is anchored at your left forearm, has elastic going across your back, and has the fishing line (and part of the elastic) stretching down your right arm. When you wear it, the pull should be really tight, without making your shoulders scrunch up.
If a handkerchief is put through the small loop of fishing line, it can be instantly pulled up the sleeve by releasing the fishing line with the right hand and by moving both of your arms slightly forward.
So that's what the pull is. Mr. Carney teaches how to use it well.