The recess has an opening at {TAIL ~ the front} of the housing and a first part of the housing for insertion of the cartridge protrudes in a direction enclosing an angle with a second part of {HEAD ~ the housing} 
The recess has an opening at { TAIL ~ the front } of the housing and a first part of the housing for insertion of the cartridge protrudes in a direction enclosing an angle with a second part of { HEAD ~ the housing }
OTH OTH OTH OTH OTH OTH TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH 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