chock

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chock

1. Nautical
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.
2. Mountaineering See nut

Chock

 

(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.

chock

[chäk]
(mining engineering)
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.
(naval architecture)
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.

chock

A wedge or block used to prevent an object from moving.

chock

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.
References in periodicals archive ?
Perches are vital and can by moved higher in summer and lower in winter so that chocks can roost in warmer or cooler air.
Chock blocks are not available in the Army's supply system-yet
In the 1980s, many wineries used fixed barrel storage systems or chock block stacking systems.
Duvall said he investigated about 30 thermoplastics and thermosets, and finally selected a grade of Bayflex polyurethane, supplied by Bayer's The chocks, produced by reaction injection molding, range from 12 to 56 inches long, 5 to 8 inches wide, and 3 to 6 inches deep.
Since there is no backup system to the parking brake, the only sure way to prevent a 100,000-pound aircraft from rolling out of control is to bring your own chocks, especially when you are going to a foreign field.
Weir to Provide Chock Repair, Bearing Maintenance for Metal Manufacturers
The FDD (a junior petty officer in training, shadowed by the LPO) directed the flight-deck crew to remove chocks and chains.
Connect the two chocks at the center notches using chain, NSN 4010-01-065-6955, and two chain hooks, NSN 4030-00-153-8711.
Thinking all was proceeding according to plan, I cleared my side (port side), seeing one aircrewman with chocks over his shoulder and a "remove before flight" flag flapping from one of the pins in his hand.
When the truck is parked for unloading, the Calematic's electronics raise the chocks to lock the truck's tires into place.
By allowing a free flow of air under hot-running compressors, epoxy chocks "thermal humping" and any other misalignment caused by thermally induced distortions.