Outboard delivery pipe. The pipe which leads, in steam vessels, from the condenser through the side of the ship.
Nipple.
Pipette. A small tube used to withdraw and transfer fluids or gases from one vessel to another. The shape differs with the special use to which it is adapted: some are graduated to measure fluids accurately as well as to transfer them.
Penstock. The barrel of a pump in which the piston plays and through which the water presses up; also the conduit or trough from the source of supply to a water wheel.
Pet-cock. This is an air-cock. See [air-cock.]
Pitcher Pump.
Plumb Bob.