of the hold, passes downward through a copper or wooden tube,
and returning upward through another, continuously lifts portions of
water. It is worked by a long winch-handle, at which several men may be
employed at once; and it thus discharges more water in a given time than
the common pump, and with less labour.--_Main pumps._ The largest pumps
in a ship, close to the main-mast, in contradistinction to _bilge
pumps_, which are smaller, and intended to raise the water from the
bilges when a ship is laying over so that it cannot run to the main
pump-well. _Hand-pump_, is the distinctive appellation of the common
small pump. Superseded by Downton and others.

PUMP-BARREL. The wooden tube which forms the body of the machine, and
wherein the piston moves.

PUMP-BOLTS. Saucer-headed bolts to attach the brake to the pump-standard
and pump-spear.

PUMP-BRAKE. The handle or lever of the old and simplest form of pump.

PUMP-CARLINES. The framing or partners on the upper deck, between which
the pumps pass into the wells.

PUMP-CHAINS. The chains to which the discs, &c., are attached in the
chain-pump.

PUMP-CISTERNS. Are used to prevent chips and other matters getting to,
and fouling the action of, the chain-pumps.

PUMP-COAT. A piece of stout canvas nailed to the pump-partners where it
enters the upper deck, and lashed to the pump, to prevent the water from
running down when washing decks, &c.

PUMP-DALES. Pipes or long wooden spouts extending from the chain-pumps
across the ship, and through each side, serving to discharge the water
without wetting the decks.

PUMP-FOOT. The lower part, or well-end, of a pump.

PUMP-GEAR. A term implying any materials requisite for fitting or
repairing the pumps, as boxes, leather, &c.

PUMP-HOOK. An iron rod with an eye and a hook, used for drawing out the
lower pump-box when requisite.

PUMPKIN, OR POMPION. _Cucurbita pepo_, a useful vegetable for sea use.

PUMP SHIP! The order to the crew to work the pumps to clear the hold of
water.

PUMP-SPEAR. The rod of iron to which the upper box is attached--and to
the upper end of which the brake is pinned--whereby the pump is put in
motion.

PUMP SUCKS. The _pump sucks_ is said when, all the water being drawn out
of the well, and air admitted, there comes up nothing but froth and
wind, with a whistling noise, which is music to the fagged seaman.

PUMP-TACKS. Small iron or copper tacks, used for nailing the leather on
the pump-bo