Simple homemade clutch for a flywheel toy?
I love those old flywheel toy cars and pump tops, but they are getting too rare to disassemble and I'd love to know how they work! I understand the push part, like in a push drill. What I can't seem to find is how to get the wheel faster and faster with repeated pumps. There must be some sort of clutch that somehow doesn't need to match speed with the spinning wheel, and it must be simple, or they wouldn't have used it in those (originally) inexpensive old toys, I do remember that there was no ratchet noise. But I can't figure it out. I know this sort of thing used to be quite common, but I'm drawing a blank on the internet. Any help will be appreciated!