This arrangement permits reservoir 2 to be connectively angled out of nesting relationship with trough 28 by rotation of {HEAD ~ valve body} 24 about immobilized cylindrical valve member 24b, while simultaneous controlling valve operation in response to the relative positioning of reservoir 2 with {TAIL ~ respect} to trough 28 
This arrangement permits reservoir 2 to be connectively angled out of nesting relationship with trough 28 by rotation of { HEAD ~ valve body } 24 about immobilized cylindrical valve member 24b , while simultaneous controlling valve operation in response to the relative positioning of reservoir 2 with { TAIL ~ respect } to trough 28
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 OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH TAIL TAIL TAIL TAIL TAIL OTH OTH OTH