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