A plunger-type jig of relatively simple design with only a single plunger
being manually controlled. The hutch compartment is round for good water
distribution. Mitchell
a. Arsenic monosulfide, AsS, contains 70.1% elemental arsenic.
Sanford
b. A monoclinic mineral, AsS ; dimorphous with pararealgar; red to orange;
soft; in ore veins, hot springs, and as a volcanic sublimate.
Syn:red arsenic; sandarac; red orpiment.
Includes mining claims, dumps, water rights, and ditches. Ricketts
To enlarge the hole by redrilling with a special bit.
Wheeler, R.R.
The act or process of enlarging a squeezed or cave-obstructed borehole to
its original size by reaming as the drill string is pulled.
Syn:reverse reaming
A rotary-drilling tool with a special bit used for enlarging, smoothing,
or straightening a drill hole, or making the hole circular when the drill
has failed to do so. See also:reaming bit; reaming shell; reamer. Also
called gage stone. AGI
See:reaming bit
a. A cutter just above a diamond bit, used to assure a full-size hole.
Nichols, 1
b. See also:reaming shell
See:gage stone
The act or process of enlarging a borehole. Long
A bit used to enlarge a borehole. Also called broaching bit; pilot reaming
bit. Syn:reamer; reamer bit. Long
See:gage stone
a. See:pilot
b. A smooth bar used to guide a reaming bit or casing bit in the hole.
BS, 9
An adapter or coupling in a reaming pilot assembly that attaches the
flush-joint casing to the casing reaming shell and the reaming pilot horn
by pin and box threads, respectively. Long
An adapter or coupling in a reaming pilot assembly attached to the reaming
pilot adapter. It passes through the reaming shell and casing bit to which
is attached the pilot bit. Long
See:reaming shell
a. A short tubular piece designed to couple a bit to a core barrel. The
outside surface of the reaming shell is provided with inset diamonds or
other cutting media set to a diameter to cut a specific clearance for the
core barrel. See also:reamer; reamer shell. Syn:reaming ring
Long
b. Sets of two or more shells that are alternated every 50 ft (15.24 m) to
keep loss in gauge to the hole uniform. The shell is changed when wear
reaches 0.012 in (0.03 cm) below the original set diameter.
See:reinforcing bar
A phenomenon, associated with the transformation of gamma iron to alpha
iron on the cooling (supercooling) of iron or steel, revealed by the
brightening (reglowing) of the metal surface owing to the sudden increase
in temperature caused by fast liberation of the latent heat of
transformation. Syn:point of recalescence
a. To increase the carbon content of molten cast iron or steel by adding
carbonaceous material, high-carbon pig iron, or a high-carbon alloy.
ASM, 1
b. To carburize a metal part to return surface carbon lost in processing.
ASM, 1
Introducing spiegeleisen into the converter after the blow to add the
desired element. Mersereau, 2