'Priming valve' definitions:

Definition of 'Priming valve'

From: GCIDE
  • Priming \Prim"ing\, n.
  • 1. The powder or other combustible used to communicate fire to a charge of gunpowder, as in a firearm. [1913 Webster]
  • 2. (Paint.) The first coating of color, size, or the like, laid on canvas, or on a building, or other surface. [1913 Webster]
  • 3. (Steam Eng.) The carrying over of water, with the steam, from the boiler, as into the cylinder. [1913 Webster]
  • Priming of the tide. See Lag of the tide, under 2d Lag.
  • Priming tube, a small pipe, filled with a combustible composition for firing cannon.
  • Priming valve (Steam Eng.), a spring safety valve applied to the cylinder of a steam engine for discharging water carried into the cylinder by priming.
  • Priming wire, a pointed wire used to penetrate the vent of a piece, for piercing the cartridge before priming. [1913 Webster]