joint expander apparatus operated by the explosion of energy developed in the dust barrel axially move bile

摘要

In a setting gun for driving fastening elements into a hard receiving material, a magazine for feeding fastening elements into the setting gun barrel is pivotally mounted on the barrel. The magazine has an outlet opening through which the fastening elements pass into an inlet opening into the barrel bore. When the setting gun is in condition to be fired the magazine is locked from movement which would permit alignment between its outlet opening and the inlet opening to the barrel bore. By axially displacing the barrel out of the firing condition to overcome the locking action, the magazine can be pivoted for registering its outlet opening with the barrel bore inlet opening for feeding a fastening element into the bore.