|I came into possession of a vintage Limit desk fan, my guess is it's from the 50's. Found a bit of info about them online but nothing really in depth. I've stripped it and started rebuilding it, got the motor back together, but I'm having trouble with the oscillating function. It has a little gearbox that came out of the fan as in this image (images were huge, so have removed them); https://i.imgur.com/HycR4kT.jpg The main shaft that goes through the middle spins when it is pressed (like in the video below - this fan is identical to mine). The shaft has a notch half way down (photo below) the holes in the shaft align with the holes in the brass cog when it's in the pressed position, to give an idea of where it all sits. The holes in the cog are what the two clips in the top of the image clip into. one of them was already broken when I took it apart, not sure where it sat. https://i.imgur.com/hknXpd3.jpg So I'm trying to get it all back together, but I've never seen a drive like this and I can't work out how the notch/cog system works. The power to this comes from a worm drive off the main motor that turns the smaller cog. How does the larger cog grip the shaft by a pushing motion? This wasn't working when I took it apart, but by the looks of things I'm the first to have it apart, so I don't think there's anything missing.
Last edited on Sun Sep 23rd, 2018 09:40 pm by Guy Meurice