"David Nebenzahl" wrote in message
.com...
On 4/21/2009 12:27 PM Peter spake thus:

You say the hinges are fully enclosed: does this mean that there's some
kind of cover over them, or does the exterior of the lamp arms form the
cover? There must be some way to get at that hinge. Any sign of a dimple,
slot, rivet, any other fastener/opening to gain access?

The hinge pins may be a press-fit. Mebbe squeeze the hinge barrel with vise
grips? If that helps a little, mebbe try getting the hinge barrel areas into
a vise or even hit 'em with a pin punch or similar.