I'm sorry if I'm not using the correct terminology here but I'm thinking of (usually Brass) flip up stops that were set in flush in the workbench top and came up a little like one of those cupboard door pulls.
I can remember using them on the when I was doing woodwork in school (back in the early 70's) but have never seen them since.
Are they still available and if so where would I get them or is there something better around these days.
Thanks,
Mike