centre seal

2 definitions found

centre seal - Collaborative International Dictionary of English v.0.48 :

  Center seal \Cen"ter seal\, or Centre seal \Cen"tre seal\,. (Gas
     Manuf.)
     A compound hydraulic valve for regulating the passage of the
     gas through a set of purifiers so as to cut out each one in
     turn for the renewal of the lime.
     [Webster 1913 Suppl.] centre seal

  Center seal \Center seal\, Centre seal \Centre seal\ (Gas
     Manuf.)
     A compound hydraulic valve for regulating the passage of the
     gas through a set of purifiers so as to cut out each one in
     turn for the renewal of the lime.
     [Webster 1913 Suppl.]