{HEAD ~ This lateral shifting} of the fork 51 and its motor 52 by eccentric 58 is guided by a roller 60 secured to a link 61 carried by {TAIL ~ the fork 51 and motor 52 assembly} 
{ HEAD ~ This lateral shifting } of the fork 51 and its motor 52 by eccentric 58 is guided by a roller 60 secured to a link 61 carried by { TAIL ~ the fork 51 and motor 52 assembly }
HEAD HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH TAIL TAIL TAIL TAIL TAIL TAIL TAIL TAIL TAIL TAIL TAIL