A secondary or additional product; e.g., gallium is commercially recovered
from the processing of bauxite to alumina. See also:coproduct
A coke oven consisting of a series of long, narrow chambers arranged in
rows, and heated by flues in which are burned a portion of the combustible
gases generated by the coking of the coal. All of the volatile products
are saved and collected as ammonia, tar, gas, etc. Fay
The products obtained from coal by destructive distillation and other
processes. Cooper
An olive-green asbestiform variety of tremolite-actinolite. The term is
used in the gem trade for a variety of quartz-containing, greenish,
fibrous inclusions of actinolite or asbestos.
a. A tetragonal mineral, MgSb2 O6 .
b. A former name for a monoclinic polymorph of pyrrhotite. Also spelled
bystromite.
A triclinic mineral, (Ca,Na)[Al,Si)AlSi2 O8 ] having 90 to
70 mol % Ca and 10 to 30 mol % Na; of the plagioclase series of the
feldspar group; prismatic cleavage; white to gray; forms phenocrysts in
some basalts and layered mafic-ultramafic intrusions
A channel or spillway designed to carry surplus water from a dam,
reservoir, or aqueduct in order to prevent overflow. AGI
A compartment for the driver in a mine locomotive, continuous mining
machine, shuttler car, scoop, etc. All coal mine locomotives in excess of
10 st (9 t) weight must have a cab at each end or an adequate center cab.
Nelson
Eng. Ironstone nodule worked for iron in the Weald. Also called bulls.
See also:ballstone; bears' muck; mare ball. Arkell
An increase in density occurring when the contents of two pipes carrying
water with different temperature and salinity characteristics, but having
the same density, are mixed; the resulting fluid mixture is slightly more
dense than either of the two original types. Hy
On a dump truck, a heavy metal shield extending up from the front wall of
the body and forward over the cab. Nichols, 1
a. A heavy multiple-strand steel rope used in cable-tool drilling as the
line between the tools and the walking beam. Syn:drilling cable
AGI
b. A term used loosely to signify a wire line. See also:wire line
AGI
c. A fiber cable consists of three hawsers laid up left-handed.
See also:wire rope; cable-laid rope. Zern
d. A ropelike, usually stranded assembly of electrical conductors or of
groups of two or more conductors insulated from each other but laid up
together usually by being twisted around a central core, the whole usually
heavily insulated by outside wrappings; specif., a submarine cable.
Webster 3rd
e. A steel rope for hoisting or for aerial trams. Fay
f. A flexible rope composed of many steel wires or hemp fibers in groups,
first twisted to form strands, several of which are again twisted together
to form a rope. Also called wire cable; wire line; wire rope; steel cable.
See also:wire-line cable
g. See:armored cable; electric cable.
h. A single concentration of steel wire intended for prestressing.
Taylor
i. A nautical unit of horizontal distance, equal to 600 ft (100 fathoms;
182.9 m) and approx. 0.1 nmi (0.18 km). Hunt
A conveyor using steel wire ropes to take the tensile pull, which in a
conventional conveyor is taken by the belt. Two-stranded steel ropes, one
on either side of the conveyor, are used for this purpose. The belt sits
on and is supported across the two ropes by means of rubber shoe forms
along the belt edges. These belts can be of long lengths, high capacities,
and high lifts. Nelson
A device or method for reinforcing ground prior to mining. The basic cable
bolt support consists of a high-strength cable installed in a borehole
4.12 to 6.35 cm in diameter and grouted with cement. Syn:cable tendon;
cable dowel. Schmuck
Complex electrical plugs and sockets used throughout a mine distribution
system to connect mobile machinery to trailing cables, to connect cables
with one another, and to connect cables to power centers, switchhouses,
and substations. SME, 1
A high-speed tractor winch having one to three drums under separate
control. Used to operate bulldozers and towed equipment.
Nichols, 1
See:cable bolt
a. A heavy drilling rig in which a rope is used for suspending the tools
in the borehole. See also:churn drill
b. A churn or percussion drill rig, consisting of a tower (derrick), wire
rope for moving tools vertically, a power unit, and a reciprocating
device. It drills holes of up to 10 in (25.4 cm) in diameter vertically to
considerable depths. Pryor, 3
A long-range, cable-operated machine that works between a head mast and an
anchor. Nichols, 1
A round hook with a wide beveled face. Nichols, 1
a. A compound-laid rope consisting of several ropes or several layers of
strands laid together into one rope, as, for instance, 6 by 6 by 7.
Hunt
b. A rope in which both the fibers forming the strands and the strands
themselves are twisted to the left. Long
c. Wire cable made of several ropes twisted together; strands of
hawser-laid rope, twisted right-handed together without limitation as to
the number of strands or direction of twist. A fiber cable-laid rope is
composed of three strands of hawser-laid rope, twisted right-handed.
Zern