The assembly 5 in which {HEAD ~ the latch member} cannot be disengaged without raising one wheel of each set off the ground by pressing the lever {TAIL ~ means} into said fulcrumming engagement 
The assembly 5 in which { HEAD ~ the latch member } can not be disengaged without raising one wheel of each set off the ground by pressing the lever { TAIL ~ means } into said fulcrumming engagement
OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH