gavatt level

1 definition found

gavatt level - Collaborative International Dictionary of English v.0.48 :

  Dumpy level \Dump"y lev"el\ (Surv.)
     A level having a short telescope (hence its name) rigidly
     fixed to a table capable only of rotatory movement in a
     horizontal plane. The telescope is usually an inverting one.
     It is sometimes called the Troughton level, from the name
     of the inventor, and a variety improved by one Gavatt is
     known as the Gavatt level.
     [Webster 1913 Suppl.]