If your goal is only to drop the yeast, why bother using gelatin? Instead just cold crash, because that will accomplish the same thing.
I cold crash without a refrigerator. I have a large igloo cooler that I fill part way with water, and rotate in ice packs chilling it down. I place in the better bottle or buck, and rotate in more ice. It works 100%.
I bottle and I consider Cold crashing essential to getting good beer. It dramatically cuts down on the yeast at the bottom of each bottle, and the yeast that gets stirred up on opening a bottle.