Feed mechanism for swagable lockbolt collars

A feeder tool for supplying lock bolt collars of the type having an axial through-hole to an end point for placement on a lockbolt shank comprising:

• a handheld feeder for holding multiple collars in a working queue and presenting collars at an end point for direct slide on placement on a lockbolt shank;
• a magazine separate from but attachable to the feeder for holding multiple collars in a supply queue wherein said supply queue extends to a transfer point adjacent to, but overlappingly offset from the working queue by a distance greater than the length of a collar;
• and
• a manually operable trigger mechanism in the feeder tool having a solid plunger mounted in a channel transversely intersecting both the supply and working queues in the overlapping portions thereof and having an end surface normally biased to a first plunger position wherein said end surface is clear of both the supply queue and the working queue thereby to allow a single collar to enter the channel while remaining offset from the working queue, said plunger being displaceable through said channel to a second position in which the plunger blocks the movement of collars from the supply queue into the channel but which further urges a collar previously occupying the channel when the plunger is in the first position to be displaced to the working queue thereby selectively pushing collars one at a time from the supply queue to the working queue, said working queue operating under unidirectional air pressure to move the collars in a direction toward the end point.