Pipe construction with a detachable bowl and stem

Claim 1

IN A PIPE, A BOWL HAVING A TOBACCO WELL, A CYLINDRICAL DOWNWARD EXTENSION ON THE BOWL, SAID EXTENSION FORMING A FILTER CHAMBER WITHIN IT, A SPOOL-SHAPED FILTER CONTAINED WITHIN SAID CHAMBER, THE EXTENSION HAVING A RADIAL OPENING, A PIN PROJECTING RADIALLY FROM THE EXTENSION AND LOCATED DIAMETRICALLY OPPOSITE TO THE OPENING, A HOLLOW STEM PROVIDED AT ONE END WITH A SPLIT RING FOR ENCIRCLEMENT OF THE EXTENSION, THE SPLIT IN SAID RING ENGAGING THE PIN, A TUBULAR SMOKE TUBE DISPLACEABLE AXIALLY WITHIN THE STEM AND SPACED FROM THE INNER SURFACE OF THE SAME, A GUIDE SLEEVE IN THE STEM THROUGH WHICH THE SMOKE TUBE IS AXIALLY SLIDABLE, AN ABUTMENT ON THE SMOKE TUBE, A COIL SPRING SURROUNDING THE SMOKE TUBE AND LOCATED BETWEEN THE GUIDE SLEEVE AND THE ABUTMENT, THE SMOKE TUBE HAVING A FORWARD TAPERED END FOR ENGAGEMENT WITH THE OPENING UNDER THE BIAS OF THE SPRING, AND SEALING MEANS LOCATED IN SAID OPENING.