Referring to FIGS 7 to 11, the ratchet wheel 11 is mounted within {TAIL ~ the inner surface} of {HEAD ~ the box end} 10 and secured in place by a C shaped clamp 14 
Referring to FIGS 7 to 11 , the ratchet wheel 11 is mounted within { TAIL ~ the inner surface } of { HEAD ~ the box end } 10 and secured in place by a C shaped clamp 14
OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH HEAD HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH