Method of centralizing and retaining molded end coils in magnet formers

Abstract

A method for centralising and retaining a molded end coil (20) in a magnet former (12) which includes an oversleeve (24) for retaining the end coil in position, the radially outer (A2) surface of the end coil being of lesser diameter than the radially inner surface of the oversleeve. The method comprises the steps of: (a) centralising the end coil (20) on the former (12) by passing a spigot (28) through the bore of the end coil and into the end of the bore of the former to locate the end coil within the oversleeve and to leave a gap (30) between the radially outer surface of the end coil and the oversleeve; (b) retaining the end coil in position against an axially adjacent surface of the former by applying an axial force to the end coil in the direction of the former; (c) filling the gap with a hardening material (42) along at least part of its axial length; (d) causing or allowing the hardening material to harden, thereby to securely and accurately retain the end coil onto the former; and (e) removing the spigot.

Dependencies are inferred from the claim text.