Offset hinge?
The problem I see is that there are any number of bespoke hinges on
already existing devices but if you look for a replacement they are never
standard as you buy them, you really need to find out where the original
came from but on old gear that is probably not possible any more.
Brian

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The Sofa of Brian Gaff...

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"Andy Burns" wrote in message
...
Graeme wrote:

Looking for a particular type of hinge, but frustrated because I don't
know the proper name.

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

cranked hinge?