In message , Andy Burns
writes
Graeme wrote:

For a lifting flap, but the pivot needs to be half inch or so above
the flap surface

cranked hinge?

That was my first thought, but unless I'm missing the obvious, a cranked
hinge is only cranked on one side.

I've looked through a million web pages and online catalogues. I know
I've seen what I want, which makes it even more frustrating. The
alternative is to mount ordinary hinges on blocks of wood, to lift them
above the flap surface. I have done that before, and it worked, but is
a bit ugly.
--
Graeme