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booby hatch A raised framework or hood like covering over a small hatchway on a ship. boom 1. A floating barrier to control navigation into and out of rivers and harbors. 2. A spar attached to the foot of a fore-and-aft sail. [20] 3. A spar to extend the foot of gaffsail, trysail or jib. [20] 3.
In the architecture of a ship, a companion or companionway is a raised and windowed hatchway in the ship's deck, with a ladder leading below and the hooded entrance-hatch to the main cabins. [1] A companionway may be secured by doors or, commonly in sailboats , hatch boards which fit in grooves in the companionway frame.
A hatch or hatchway is the opening at the top of a cargo hold. The mechanical devices which allow hatches to be opened and closed are called hatch cover. In general, hatch covers are between 45% and 60% of the ship's breadth, or beam, and 57% to 67% of the length of the holds. [4]
The open hatch bulk carrier, often referred to as OHBC or conbulker, is designed to offer direct access to the hold through cargo hatches which extend the full width of the vessel. As a result, large cargo units can be lowered into place. If it is possible, the holds or hatches are designed around standard cargo unit sizes.
It may hold another object in place by blocking it, clamping it, or otherwise obstructing its movement. Or it may couple various parts together so that they move in unison – the primary example of this being a flexible drive to mate two shafts in order to transmit torque. Some devices use dog clutches to lock together two spinning components.
The years-long road that led to last week’s “SNL50” events was more than a complex programming campaign for NBCUniversal. It was a test of the company’s pipes. The Feb. 14 “SNL50: The ...