Abstract: The several machine functions required to feed, cut, and insert insulating wedges into armature slots are accomplished with the use of a single drive motor that drives a control cam and a Scotch yoke mechanism. The machine is of simple construction and capable of high speed operation. By minor modification, the same machine can be used for feeding, cutting and inserting armature cell insulating liners.The machine includes an improved armature index mechanism especially adapted for high speed indexing in which the index pawl enters succeeding armature slots while traveling at zero velocity in the direction of its indexing movement.

Abstract: A mechanism for positioning a spindle with a chuck mounted thereon comprises a cartridge supported for sliding axial movement, means journalling said spindle in said cartridge and restraining said spindle against axial movement relative to said cartridge, and class 1 lever means for axially positioning said cartridge and thereby also positioning said spindle and said chuck.