A plate reinforcing the top of a drilled hole that accepts a pintle.



Related Terms

COUNTERSUNK HOLE

An edge bevelled hole in a plate allowing a matching tapered bolt head to seat flush with the plate's surface.

KEEL RIDER

A plate running along the top of a vertical bar keel.

BOILER HEADER (BOX)

A pressure part of the boiler consisting of a flat tube sheet into which the ends of the water tubes are rolled. In a parallel plane is a tube cap or handhole sheet. The two sheets are spaced about 4 to 8 in. or more apart. The top and bottom and both ends are flanged together and riveted or may be closed by a narrow flanged strip of plate riveted to each sheet. Circulating nipples connect the top of the header and drum, or the header may be flanged and riveted directly to the drum. Welding would be used today instead of rivets.

BOSUN'S PIPE

An ancient palm held tin whistle used for signalling orders aboard ship, consisting of a flat plate (keel) supporting a bent pipe (gun), terminating with a blow hole (orifice) at a hollow sounding sphere (buoy). Still used in the Navy to pipe dignitaries aboard a ship.

DUPLICATING PIPE

A tube used to print rivet hole layout from template to plate surface.

FREEBOARD DEPTH

(D): The moulded depth measured amidships, from the top of the keel to the top of the freeboard deck beams at side, plus the thickness of the stringer plate if no wooden deck is fitted. If a wooden deck is fitte

BILGE BRACKET

A vertical transverse flat plate welded to the tank top or margin plate and to the frame in the area of the bilge.

LIMBER HOLE

A small drain hole or slot in a frame or plate for the purpose of preventing water or oil from collecting

ORIFICE DISCHARGE COEFFICIENT (Cd)

The ratio of the actual flow through an orifice to that of the theoretical or isentropic flow through an orifice. Basically this parameter is a measure of the orifice efficiency. Valves are dimensionless and range from 0.61 for a thin-plate orifice to 0.85 for thick plate square-edged orifices, and up top 0.90

OXTER PLATE

The plate in the curve between the shell plating and the top of the stern post.

Related questions

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