{TAIL ~ An adjustable weight} is provided to control {HEAD ~ the force} exerted upon a signature stack during operation 
{ TAIL ~ An adjustable weight } is provided to control { HEAD ~ the force } exerted upon a signature stack during operation
TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH OTH OTH OTH OTH OTH