a. A hydrocarbon related to, or identical with, thucholite, the ash of
which contains uranium, lead, and iron. Tomkeieff
b. A variety of anthraxolite, from pegmatites of Karelia, former U.S.S.R.
Crosby
An odorless, flammable gas, CH4 . Known in coal mines as
combustible gases or gas. See also:methane
The process of imparting carbon, such as in making cement steel.
Fay
Hard-surfacing of steel by heating above the critical temperature in an
inert atmosphere with a source of carbon (e.g., cyanide salts), thus
forming a cementite casing above a tough core (which has already been
machined). Pryor, 3
A gas flame that will introduce carbon into some heated metals such as
during a gas welding operation. A carburizing flame is a reducing flame,
but a reducing flame is not necessarily a carburizing flame.
ASM, 1
The tension-carrying portion of a conveyor belt. It may be composed of
multiple plies of fabric or cord, and simple layers of cord or steel
cable, bonded together with rubber.
In bituminous coal mining, a laborer who chalks on a car the number of
rooms or working places from which coal is obtained in order that a
production record of all parts of a mine can be maintained. DOT
A table made of two planes having a flexible joint between them dividing
the table into two nearly equal triangles, forming a diagonal line along
which concentrates separate from the tailings. Liddell
a. One of the four principal "points" of a compass. AGI
b. A change in the speed of the ropes on a winding drum, which occurs at
certain definite intervals during the winding cycle. Sinclair, 5
Trade name for an explosive device used principally in coal mining.
See also:carbon dioxide blasting
A baked mixture of caustic soda and lime, used in the container or
regenerator of self-contained mine-rescue or oxygen-breathing apparatus to
absorb the exhaled carbon dioxide. It has an advantage over straight
caustic soda in that it does not cake, liquefy, or solidify when used.
Lewis
In bituminous coal mining, one who recharges steel shells (tubes) known by
the trade name Cardox with metal shearing disks, electrical firing
elements, and liquid carbon dioxide to prepare them for blasting coal.
DOT
Steel shell used in carbon dioxide blasting.
See:car runner
A shaking table with a grooved deck instead of nailed-on riffles. Used in
gravity concentration of sands. Pryor, 3
In the asbestos products industry, one who tends a carding machine that
cleans asbestos, cotton, or other fibers; arranges fibers parallel; and
transforms them from a roll or lap into a ropelike untwisted strand of
cotton (sliver). Also called allye tender; card feeder; card hand; card
operator; winder. DOT
See:tipple
a. A mechanical device for tilting a railroad hopper or gondola car over
sidewise and emptying its contents. Fay
b. A person who unloads cars by upending or overturning them.
A term used to designate standard or full weight pipe, which is the Briggs
standard thickness of pipe. Strock, 1
See:mucker
A pusher chain conveyor used for moving small cars, such as mine cars,
along a track. A form of tow conveyor.