Tony -
We used to use these tiny brass tubes for inline splices. No teeth inside and no insulation outside. We used to slide them on one side of a broken wire, twist on the other side, crimp them and tape them. They were designed for repairing breaks in the old, old residential wiring where replacing a run would be a nightmare.
When those were not available we would gently squeeze a beanie and pop open the closed end. Then insert the wires from opposite ends and crimp.
Both of these were emergency methods only as far as I was concerned, but I knew people who just left them in forever - or until they went bad again.
Sam
