Glossary

Using reference material, this glossary has been designed to provide you with a basic explanation or definition of each of the terms provided.  This glossary will be constantly updated so please contact us, if you would like us to comment of any of the terminology used.

A B C D E F G H I J K L M N O P Q R S T U V W Y Z

J

jack stay
a metal bar atttached to the top of a square yard on the forward edge to which the sail is bent
Source: Maritime Curators Group: Manual of Curatorship
jack yard
a spar supporting a four-sided topsail se tabove a gaff main sail
Source: Maritime Curators Group: Manual of Curatorship
jaws
the arms attached to the end of a gaff to engage the mast
Source: Maritime Curators Group: Manual of Curatorship
jib
a triangular sail set on a stay between the bowsprit or jibboom and the foremast
jibboom
a spar extending the foot of a sail
jigger
(a) a small mast right aft or its sail (b) the fourth mast on a ship with more than three masts (c) a light four-fold tackle used to give extra force when hauling on the cable or a heavy hoist
Source: Maritime Curators Group: Manual of Curatorship
jigger mast
the after mast on a four-masted vessel or a mast set right in the stern of a boat behind the tiller
Source: Maritime Curators Group: Manual of Curatorship
joggled frame
a frame which has a shaped outer surface to take the lands of the planking. The notches are JOGGLES and full width of the strake
joggled plating
allowing both in and out strakes of plating in a metal hull to rest on the frames, the out strakes being jobbled over the inner and rivetted
Source: Maritime Curators Group: Manual of Curatorship
josher
a narrow boat owned and built by Fellows, Morton & Clayton
Source: MDA: Waterways Object Name Thesaurus
jury rig
an improvised sailing rig when the normal propulsion has been damaged
Source: Maritime Curators Group: Manual of Curatorship

thole pin:

a single pin or one of a pair rising vertically from the sheer and acting in a variety of ways to provide a fulcrum for the oar