The gripping knob is connected to an intermediate non deformable connecting device having structure to allow {HEAD ~ adjustment} of {TAIL ~ the length} thereof 
of
The gripping knob is connected to an intermediate non deformable connecting device having structure to allow { HEAD ~ adjustment } of { TAIL ~ the length } thereof
OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD REL TAIL TAIL TAIL TAIL TAIL TAIL OTH