I appreciate the wiki but I was hoping to see exactly what you had.

I also take parts of machines to make other tools or machines. That's partially what this site is all about. Some folks make from scratch, I scavenge and adapt.

I've not seen exactly how the mechanism of a hospital bed works whether it's electro mechanical like a screw mechanism or purely hydraulic. And I'm sure depending on the age and the maker it can be any of those things. So that's why I was hoping for a pic. It also helps for future reference because like treadmills they aren't exactly something that would necessarily be on somebodies radar. But when you see how many are out there for little or nothing and how many useful mechanisms there are on them they suddenly become a resource. And I'm not just talking about the dc motor drives, but the drums, bearings and screw action lift/tilt assemblies. And I owe the fellow denizens here a tip of the hat to bring them to my attention.

This site is the best for getting info on this kind of scavenging/repurposing. And every area has it's excess of such stuff. There is a lot of older and retired folks here so Craigslist has lots of treadmills and I'll add hospital beds to my daily perusal of "affordable" material. Like anything it helps to know what is the good stuff and the junk, that's why I was asking about specifics on the mechanicals.