Viscosity, defined as rate of flow of oil from a Redwood viscometer.
Pryor, 3
See:zincite
See:zincite
a. Scot. Rift, or direction of easiest splitting.
b. Weakness in a sedimentary rock parallel with the bedding.
See also:cleat
c. A reed filled with powder to act as a fuse. See also:spire
A triclinic mineral, NaBSi3 O8 ; feldspar group; occurs in
small colorless prisms having wedge-shaped terminations; from oil wells in
Duchesne County, UT.
a. A ridgelike or moundlike structure, layered or massive, built by
sedentary calcareous organisms, esp. corals, and consisting mostly of
their remains; it is wave-resistant and stands above the surrounding
sediment. Also, such a structure built in the geologic past and now
enclosed in rock, commonly of differing lithology. AGI
b. A narrow ridge or chain of rocks either at the water surface or too
shallow to permit safe passage of a vessel. CF:bank
c. A provincial term for a metalliferous mineral deposit, esp. gold
bearing quartz. See also:reefing
A deposit of fossil-reef material overlying or covering an island or
mountain. AGI
Aust. A cutting through the bedrock in alluvial mining for the purpose of
seeking other underground, gold-bearing gravel channels.
Working auriferous reefs or veins. See:reef
See:bioherm
A limestone consisting of the remains of active reef-building organisms,
such as corals, sponges, and bryozoans, and of sediment-binding organic
constituents, such as calcareous algae. AGI
Aust. Gold-bearing drift.
A device used for hoisting that has largely been replaced by round ropes.
A flat rope is used for the reel, which is wound on an overlapping spiral
like a clock spring. The reel is like a conical drum that increases in
diameter by the thickness of the rope at each turn. Reels are more
suitable for hoisting from a single level than from different levels.
Lewis
In bituminous coal mining, one who works on an electric locomotive--power
being transmitted through an electric cable wound around a reel on the
locomotive--tending the cable to see that it is wound up and fed from the
reel so that it will not pull or break from the point where electric
current is supplied. Also called nipper. DOT
A trolley locomotive with a wire rope reel for drawing cars out of rooms.
The rope end is pulled by a runner into the face of the room, attached to
a car, and reeled out by the locomotive. Zern
See:reinforcing bar
Consists of a thin square aluminum vane centrally suspended from a
horizontal wire mounted in a vertical frame. The velocity of the air
current is obtained from the measurement of the torque that has to be
applied to the wire to bring the vane back to its vertical position. The
instrument is mounted on a tripod, and the arrangement is such that the
torsion can be applied, at a point 2 ft (0.6 m) away from the vane, by
means of a shaft and bevel gearing. The instrument has been used to
measure low air velocities in mines down to about 10 ft/min (3 m/min) and
up to 180 ft/min (55 m/min). Syn:torsion anemometer
The orderly arrangement of a rope or cable on a system of pulleys or
sheaves to assemble block-and-tackle equipment for handling heavy loads.
Also called reeved. Long
Threading or placement of a working line. Nichols, 2
In structural petrology, three mutually perpendicular axes to which
structural measurements are referred. a is the direction of tectonic
transport, c is perpendicular to the plane along which differential
movement takes place, and b lies in this plane but is perpendicular to a.
Hydrogen electrode used to determine electrode potentials of half-cells.
Pryor, 3