I'm afraid rims are like tyres, and have to be considered as expendable items.
There are a few talented and highly skilled people who can sometimes improve 'flats' and there are tools in existence designed to repair Westwood rims suffering from this problem.
In this case I think the rim is knackered because, even if it could be made completely circular again, there would still be a lump on the braking area.
However, it shouldn't be a great tragedy, because the world is still abundant with sprint rims that nobody wants, so I would just find a suitable rim and replace using the existing spokes.
I'm afraid rims are like tyres, and have to be considered as expendable items.
There are a few talented and highly skilled people who can sometimes improve 'flats' and there are tools in existence designed to repair Westwood rims suffering from this problem.
In this case I think the rim is knackered because, even if it could be made completely circular again, there would still be a lump on the braking area.
However, it shouldn't be a great tragedy, because the world is still abundant with sprint rims that nobody wants, so I would just find a suitable rim and replace using the existing spokes.