a. a fairlead consisting of a ringlike device with an opening at the top through which a rope is placed
b. a cradle-like support for a boat, barrel, etc.
Collins Discovery Encyclopedia, 1st edition © HarperCollins Publishers 2005
The following article is from The Great Soviet Encyclopedia (1979). It might be outdated or ideologically biased.
(cribbing), an adjustable mine support on the working face for controlling the roof by the caving and lowering methods; in development workings it is used for supporting berms and filling empty spaces behind the supports. The cribbing consists of square or rectangular chocks (cages) made of stacked wooden props, beams, or metal girders and rails; the inside space is sometimes filled with rock to reinforce the structure.
The Great Soviet Encyclopedia, 3rd Edition (1970-1979). © 2010 The Gale Group, Inc. All rights reserved.
A square pillar for supporting the roof in a mine, constructed of prop timber laid up in alternate cross layers, in log-cabin style, the center being filled with waste.
An open or closed metal fitting through which ropes, wires, or cables are passed.
A block or wedge for supporting a boat that is being repaired.
McGraw-Hill Dictionary of Scientific & Technical Terms, 6E, Copyright © 2003 by The McGraw-Hill Companies, Inc.
A wedge or block used to prevent an object from moving.
McGraw-Hill Dictionary of Architecture and Construction. Copyright © 2003 by McGraw-Hill Companies, Inc.
A block of wood or other material, or a rigid framework of metal, usually designed to fit in the angle between the airplane tire and the ground to aid in preventing the airplane from rolling.
An Illustrated Dictionary of Aviation Copyright © 2005 by The McGraw-Hill Companies, Inc. All rights reserved