a. A crude casting of metal convenient for storage, transportation, or
melting; esp. one of standard size and shape for marketing run directly
from the smelting furnace. CF:ingot
b. A mold or channel in a pig bed. Webster 3rd
c. A heavily shielded container (usually lead) used to ship or to store
radioactive materials.
d. An air manifold having a number of pipes which distribute compressed
air coming through a single large line. Nichols, 1
Modification of the open-hearth process of steel manufacture with pig iron
and iron ore as the charge. Bennett
Modification of the open-hearth process of steel manufacture with pig iron
and steel as the charge. Bennett
A series of molds for iron pigs, made in a bed of sand. Connected to each
other and to the taphole of the blast furnace by channels, along which the
molten metal runs. CTD
Person who pours molten metal into hand ladles, and from ladles into molds
to form ingots. DOT
a. A room driven directly into a coal seam from the edge of a strip pit.
b. Any small poorly equipped coal mine.
c. A hole in the shaft house floor through which the bucket or skip is
raised or lowered. Hess
d. An opening left at the meeting of two sections of arch work, permitting
the workers to close the arch and to come out. The pigeonhole itself is
closed from below. Stauffer
An arrangement of checkerbrick such that each course of brick is laid in
spaced parallel rows with the brick end to end; each alternate course
above and below has its parallel rows at right angles to the intervening
course. ARI
A monoclinic mineral, (Mg,Fe,Ca)(Mg,Fe)Si2 O6 ; pyroxene
group; crystallographically distinct from augite; occurs only in quickly
chilled lavas. CF:augite
a. An iron clamp shaped like a pig's foot used to attach the jack to the
feed chain of a continuous electric coal cutter. Fay
b. A pipe jack with a pig foot at one end. Fay
A device for sampling bottom sediments. A core barrel is driven into
unconsolidated material by an explosive charge. AGI
A laborer who removes metal pigs from molds manually and stamps heat
numbers on pigs with hammer and punch. DOT
Commercial lead in large oblong masses or pigs.
A mineral having economic value as a coloring agent. The most important
are the red and yellow ochers and brown sienna, which consists of iron
oxides with some impurities, and the brown umbers in which manganese oxide
is also present. When the iron-oxide content is high the term oxide is
used in preference to ocher. AGI; Nelson
Metal, such as brass or copper, in its first rough casting.
Standard, 2
A salt of alumina and organic acid, 4Al2 O3 .C12 H
10 O8 .27H2 O ; formed on the surface of granite under
the influence of wet vegetation. Tomkeieff
A person delegated to the duty of punching or knocking pig iron out of
chills or molds at a blast-furnace or pig-casting machine. Fay
Timber support used in stopes to hold up the roof, consisting of a square
frame of chocked round timbers and filled with waste rock.
See also:cog
Hollow pillars built up of logs laid crosswise for supporting heavy
weights. See also:cribbing
A laborer who helps a pusher to push loaded mine cars over long distances
and up inclines where mechanical or mule haulage is not used. Also called
helper-up. DOT