A method of working the open-hearth furnace in the duplex process so as to
reduce as much as possible the amount of manganese lost in the slag in the
production of manganese steels. Osborne
In mining, scraper-loader used to gather and transport severed rock.
Cables pull a box-sided hoe over the loose ore, which is gathered and
dragged (slushed) to the delivery point. Pryor, 3
A method for the production of sponge iron that consists of charging
fireclay pots with flat briquettes of a concentrate of iron ore
interspersed with layers of carbon, prepared by mixing coal with coke
breeze; the pots are charged in batches in a long pit furnace where they
are heated to about 1,200 degrees C. Osborne
a. Any ridge with a sharp summit and steep slopes of nearly equal
inclination on both flanks, and resembling in outline the back of a hog;
specif. a sharp-crested ridge formed by the outcropping edges of steeply
inclined resistant rocks, and produced by differential erosion. The term
is usually restricted to ridges carved from beds dipping at angles greater
than 20 degrees . CF:cuesta
b. A term applied in New England to a drumlin (western Massachusetts) and
to a horseback or esker (Maine). AGI
c. The name given by geologists to the ridgy structure of certain
districts, which consist of alternate ridges and ravines, occasioned
either by the sharp undulations of the subjacent rocks, or more frequently
by the erosive action of mountain torrents that cut out the ravines and
leave the ridges or "hog's-backs" standing between. This structure occurs
most abundantly on the lower slopes and flanks of mountain ranges.
AGI
d. A sharp anticlinal, decreasing in height at both ends until it runs
out. AGI
e. A ridge produced by highly tilted strata. AGI
f. Local term for drumlins in western Massachusetts. AGI
g. A name applied in the Rocky Mountain Region to a sharp-crested ridge
formed by a hard bed of rock that digs rather steeply downward.
h. A ridge or lines of high hills with sharp summits and steeply sloping
sides. Long
i. Eng. A sharp rise in the floor of a coal seam. Fay
A trigonal and hexagonal mineral, (Mg,Fe)2 (Al,Ti)5 O (sub
10) ; metallic black with imperfect cleavage and conchoidal fracture; with
magnetite, ilmenite, corundum, or ferroan spinel in iron ore at Redstand,
Norway, and in emery at Whittles, VA. Also spelled hoegbomite.
Corn. The food carried by the miner to the mine. Fay
Scot. A leather or canvas delivery pipe at the top of a sinking set of
pumps.
N. of Eng. The upper terminal pipe with delivery hose from the mining
pump. Fay
The topmost pump in a shaft. Fay
A material composed of screenings or siftings of gravel or a mixture of
loam, coarse sand, and fine gravel, used in making filter beds, as a
binder, etc. Webster 2nd
A bending moment that tends to cause hog. See also:sagging moment
Hammond
Probably amarantite. See also:metahohmannite
a. The windlass mechanism incorporated as an integral part of a
power-driven drilling machine used to handle, hoist, and lower
drill-string equipment, casing, pipe, etc., while drilling, or to snake
the drill from place to place. Long
b. The act or process of lifting drill string, casing, or pipe out of a
borehole. Long
c. A power-driven windlass for raising ore, rock, or other material from a
mine and for lowering or raising people and material. Also called hoister.
Syn:mine hoist
d. The mechanism by which a bucket or blade is lifted, or the process of
lifting it. Nichols, 1
e. A drum on which hoisting rope is wound in the engine house, as the cage
or skip is raised in the hoisting shaft. Pryor, 3
f. An engine with a drum, used for winding up a load from a shaft.
See also:winding engine
g. The amount of ore, coal, etc., hoisted during a shift. Fay
h. See:draw works; elevator.
A switch that permits operation of the hoist only in the reverse direction
in case of overwind. Syn:back-out switch
In bituminous coal mining for Arkansas and Oklahoma, a general term
applied to a hoisting engineer who operates a small hoisting engine, or an
oiler who lubricates and cleans the engine. DOT
See:hoistman
See:hoistman
A machine used in hoisting the product. Zern
a. Winding in a mine. Nelson
b. In power-shovel nomenclature, hoisting is a term applied to two
operations: (1) the raising or lowering of the boom, and (2) the lifting
or dropping of the dipper stick in relation to the boom. Carson, 1
a. The lower block of a block and fall, bearing the hoisting hook.
Standard, 2
b. Used incorrectly as a syn. for sheave wheel. Long
c. A traveling block or sheave. Long
The section of a mine shaft used for hoisting the mineral to the surface.
Stoces