to normally assume a vertical position when rod 28 urges a correctly oriented rivet 16 against the control gate 35 it yields downwardly as indicated by the arrow and the rivet is free to pass to the outlet 34 of the device 10 for continued passage along track extension 24 to point 20 the track section 24 begins at bifurcated ends 46 and 48 and has a central elongated slot 50 however if the rivet 16 falls into the orientation device in the wrong position or skips out of track 30 the rivet will not maintain the seated position shown in fig2 but will rather assume an unseated position relative to track 30 as shown in fig4 when the rivet in the disoriented position is pushed against the control gate 35 the gate will only yield partially and the gate will urge the head 56 of the displaced rivet 16 against the stop portion 58 of the upper housing wall 9 once this occurs the plunger is withdrawn from continued contact with the rivet thereby causing it to fall back horizontally into the central portion of the track 30 and compressed air is introduced at inlet 59 to cause tumbling of the rivet within the upper chamber 14 the supply of compressed air is provided for a short fixed period of time and after it stops the rivet will again be encouraged to maintain a proper seated position within track 30 the operation is repeated with plunger 28 pushing the rivet toward the device outlet and if successful the rivet will be pushed out to point 20 if not it will again hit the stop at 58 and a further attempt is made with.