A horizontally extending shaft 16 is also rotatably supported in {TAIL ~ the side plates} 6, 7 and has {HEAD ~ eccentrics} 17 mounted thereon 
A horizontally extending shaft 16 is also rotatably supported in { TAIL ~ the side plates } 6 , 7 and has { HEAD ~ eccentrics } 17 mounted thereon
OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD OTH OTH OTH