The slide element 8 also has at the rear end thereof an extension 13 extending through the cut 6 into the recess 7 where {HEAD ~ the extension} 13 is enlarged to form {TAIL ~ a vertical end surface} 14 
is enlarged to form
The slide element 8 also has at the rear end thereof an extension 13 extending through the cut 6 into the recess 7 where { HEAD ~ the extension } 13 is enlarged to form { TAIL ~ a vertical end surface } 14
OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD OTH REL REL REL REL TAIL TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH