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A file with a rounded edge on one side and a thin edge on the other; used to sharpen straight-sided saw teeth with round gullets.



Related Terms

COMPACTED ICE EDGE

A close, clear-cut ice edge compacted by wind or current. It is usually on the windward side of an area of pack ice.

FULL MOON

The moon at opposition, when it appears as a round disk to an observer on the earth because the illuminated side is toward him.

CIRCULAR FORM TOOL

A round or disk-shaped tool with the cutting edge on the periphery.

DIFFUSE ICE EDGE

A poorly defined ice edge limiting an area of dispersed ice. It is usually on the leeward side of an area of pack ice.

GUNWALE

The upper edge of the hull. The top timber on the rail round the outer edge of the deck.

DRAFT MARKS

The numbers which are placed on each side of a ship at the bow and stern from the lower edge of the number to the bottom of the keel

BEADING PLANE

A plane having a curved cutting edge for shaping beads in wood. Also known as bead plane.

JACOB'S LADDER

A rope ladder suspended from the side of a vessel and used for boarding.

BACKING (OF WIND)

When a wind blows round anti-clockwise (opposite of veering)

AFTER PERPENDICULAR

A line which is perpendicular to the intersection of the after edge of the rudder-post with the designed load water-line. This is the case for both single- and twin-screw merchant ships. For some classes of warships, and for merchant ships having no rudder-post, the after perpendicular is taken as the centre-line of the rudder stock.

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