Abstract: A rivet setting tool is provided with a quick connect jaw guide assembly and nose housing. The quick connect feature allows for quicker easier disassembly and assembly of the jaw guide assembly and nose housing for cleaning and general maintenance.

Abstract: A rivet delivery device is provided for transferring a rivet from a rivet passage to a nose piece of a pulling head and jaw case mechanism. The rivet delivery device is air driven to extend forwardly of the rivet setting tool and rotates to present a rivet in front of the jaws and then transfers the rivet into the jaws. The angular rotation and stroke length of the rivet delivery device can be easily adjusted. A double-acting piston is driven in both directions by positive air pressure to extend and rotate the delivery device in front of the nose piece and returning the rivet delivery device after rivet transfer. The use of a double-acting piston greatly enhances the speed at which the, rivet delivery device can operate.

Abstract: An improved escapement mechanism is provided including a reciprocating nesting block which periodically advances a rivet or other fastener to a delivery tube. The escapement mechanism includes a cover plate mounted to the housing and secured in place by a pair of locating pins and a thumb screw assembly which makes removal of the cover plate very simple. The nesting block is provided with an elongated slot which is engaged by a head portion of an end fitting attached to drive rod of a drive mechanism. The sliding engagement of the end fitting with the elongated slot of the nesting block provides for easy changeover to other nesting blocks as well as improved maintenance and cleaning.