means {HEAD ~ rotatable} in one direction connected to said arm for imparting {TAIL ~ reciprocating movement} to said arm about said axis to move said dip ring back and forth between a first position in said predetermined path and a second position below said first position; and 
means { HEAD ~ rotatable } in one direction connected to said arm for imparting { TAIL ~ reciprocating movement } to said arm about said axis to move said dip ring back and forth between a first position in said predetermined path and a second position below said first position ; and
OTH HEAD HEAD HEAD HEAD HEAD OTH OTH OTH OTH OTH OTH OTH OTH OTH TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH