an upper shaping form sized to fit closely within the tubular cavity, and means for moving the upper shaping form between {HEAD ~ a raised position} spaced above the open bottom cavity end, and a lowered position near the open bottom cavity end and {TAIL ~ the lower shaping form} 
an upper shaping form sized to fit closely within the tubular cavity , and means for moving the upper shaping form between { HEAD ~ a raised position } spaced above the open bottom cavity end , and a lowered position near the open bottom cavity end and { TAIL ~ the lower shaping form }
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 HEAD OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH TAIL TAIL TAIL TAIL TAIL TAIL TAIL TAIL