I have one of them sitting on my shadow board - been there for 20 years; I just buy new clamps.The only thing I can imagine that would detract from its use, is that 9 times out of 10, the position where the clamp is required, is inaccessible, has limited room to manipulate any tool on the hose/pipe - and is usually on the underside of everything, entailing jacking up the equipment, or rolling in the dirt, to fit the clamp!
I made one at high school, we made the components as an introduction to the the metal lathe. I've never used it.Must be thousands of them unused in workshops, after getting hooked on a demo at an airshow or country fair. Just carry a couple of spare Triton hose clamps, excellent quality.
That's what I thought, makes beautiful looking clamps with tie wire, but gal wire snaps before you can get the tension tight enough to stop the hose leaking, so there's nothing for it except buying several rolls of stainless steel wire, which does work well, once you've praticed how many screws to get that exact tension needed. Costs less to keep a tin of stainless steel worm drive clamps.Looks like it's useless for aircraft, cars and boats, but could be useful for the garden hose.