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