DICTIONARY OF

High and Dry 170 Hogshead
High and Dry. State of a grounded vessel when sea level is below her keel as tide ebbs.
High Charged.* Said of a vessel with lofty superstructure.
High Court of Admiralty. British court of law in which a judge— assisted by Trinity
Masters, who act as assessors and nautical advisers - deals with matters concerning ships and
shipping in navigable waters.
High Frequency. Electrical frequency exceeding 15,000 per second.
High -Pressure Boiler. Water tube boiler generating steam at pressures between 400 and
650 Ib. per sq. in.
High Seas. Oceans and extra-territorial areas of seas collected with oceans.
High Tide. The high water of any tidal undulation.
High Water. Highest level reached by any particular tidal undulation.
High-Water Mark. Permanent mark that indicates a high-water datum. That in London was
established by Act of Parliament in 1800, and is cut into Hermitage entrance to London
Docks. Is 12-53 feet above mean sea level at Liverpool.
High Wooded. Said of a boat with high freeboard.
Hill & Clarke's Lowering Apparatus. One of the earliest type of boat releasing gear
(1880). Immediately both ends of boat were waterborne the falls became disconnected from
boat.
Hire and Payment Clause. Inserted in a time charter to specify amount of money to be
paid, and when payment is to be made.
Hitch. Manipulation of end of a rope by which it becomes attached to any object other than
another rope's end.
Hoar Frost. Small particles of ice formed by small drops of water being deposited on a
surface whose temperature is below that of freezing point.
Hog. Stiff brush used for scrubbing ship's bottom. Old sail, filled with holystones, etc., used
for same purpose when at sea. 2. To clean bottom of a ship by scraping or scrubbing. 3. To
droop at fore and after ends through structural weakness or bad disposition of cargo. Can
occur when vessel is excessively supported amidships and not fully supported at ends.
Hog Chain.* Iron chain tautly stretched between stem and stern posts. Formerly fitted in
some ships to prevent hogging.
Hog Frame. Strong fore and aft frame built to prevent hogging.
Hogging. Cleaning ship's bottom. 2. Drooping of a vessel at fore and after ends and arching
at middle part. Also applied to any structural member that droops at ends.
Hogging Strain. Excessive stress that causes a vessel or member to hog.
Hog Piece. Timber going from forward to after deadwood, in a wooden boat, to increase
girder strength and so resist hogging stresses. Is attached to top of keel, and garboard strake
is attached to hog piece.
Hogshead. Cask holding about 52 ½ gallons, but may vary with different liquids.