A pawl is movably secured to {TAIL ~ the frame}, with {HEAD ~ an inner end} thereof located in the clevis channel 
A pawl is movably secured to { TAIL ~ the frame } , with { HEAD ~ an inner end } thereof located in the clevis channel
OTH OTH OTH OTH OTH OTH TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH OTH OTH OTH OTH