So I've got myself a skeleton spawner and I've got it hooked up to a sorter for bones and arrows. I want to destroy leather armor and bows. However, I want to sort out iron, chain, and gold armor to smelt into nuggets. I know that a hopper will put any item into a furnace if it's point into the top of the furnace. But with the bows and leather, this would clog the furnace because these items wont smelt. Is there a way to do this automatically or will I have to sort the armor by hand?
You could first try to push the items into the fuel slot of the furnace, which will accept the bows. However, I don't know if your plan to push the armor into the top could really work. The problem is that things that fail would need a way to me pulled out. Normally that's done with hopper underneath the one trying to push into the furnace or whatever container. But since the furnace is under it, you can't really do that, right?