{HEAD ~ said inclined surface} is disposed only at {TAIL ~ said lowermost portion} of said wall and extends lower than said lever, 
is disposed at
{ HEAD ~ said inclined surface } is disposed only at { TAIL ~ said lowermost portion } of said wall and extends lower than said lever ,
HEAD HEAD HEAD HEAD HEAD HEAD HEAD REL REL OTH REL TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH