Thanks JR. I'm glad that at least our first guess was correct, then.
Don't know about the gas strut, but doesn't that have a sealed piston and different pressures on the two faces of the piston? I'm sure that it is used for totally different applications, at least.
Hi friends
I'm working in a community center repair workshop once a week. One of our customers brought us an automatic window opener used for a greenhouse, and we were not able to find out how this contraption really works - but it does work, by using solar energy only.
It consists of a hollow...