The controlled flow of air to and from the faces to secure adequate
ventilation of all workings and traveling roads. See also:dadding
Nelson
The speed, generally expressed in lineal feet per second, at which a fluid
or gas travels upward in a borehole after passing the face of the bit.
Long
The amount of liquid or gas circulated through the drill-string equipment
in drilling a borehole. The amount of liquid circulated is expressed in
gallons (or liters) per minute, and the amount of a gas, as air, is
expressed in cubic feet (or cubic meters) per minute. Long
A surveyor's compass with diametral projecting arms each carrying a
vertical slit sight. Webster 3rd
a. A settling tank for liquid slag, pulp, etc.
b. An artificial reservoir or tank for holding water. AGI
Issued by regulatory representatives alleging a specific condition or
practice that violates mining, maritime, construction, environmental, or
general industry standards. NSC, 1
Not the true topaz of mineralogists, but a yellow variety of quartz, which
closely resembles topaz in color though not in other physical characters;
it is of much less value than true topaz. Known under a variety of
geographical names such as Bohemian topaz, Indian topaz, Madagascar topaz,
Madeira topaz, and Spanish topaz. Brazilian topaz is the true mineral.
Also called quartz topaz. See also:Scotch topaz; false topaz;
smoky quartz. CMD
A detonation characterized by the equivalence of the detonation velocity
to the velocity of sound in the burned gas plus the velocity of flow of
the burned gases. Van Dolah
a. A valve part. The hinged, lidlike part of a check, clack, or pump
valve. Also called check; flap. See also:flapper
b. A clack or pump valve. Long
The rim or seat on which the hinged lid or flapper of a clack valve
closes. Long
A valve having a lidlike piece hinged on one side within a chamber that
permits the flow of a fluid or gas to proceed in one direction only.
Usually, the check valve on the pickup end of a drill-pump suction hose is
a clack-type valve. Also called chock valve; flap valve; flapper valve;
foot valve. Long
A composite metal containing two or three layers that have been bonded
together. The bonding may have been accomplished by corolling, welding,
casting, heavy chemical deposition, or heavy electroplating.
ASM, 1
a. Newc. Adhesive. When coal is tightly joined to the roof, the mine is
said to have a claggy top. Also spelled cladgy. Fay
b. Newc. Muddy or clayey dirt. Pryor, 3
a. The portion of mining ground held under the Federal and local laws by
one claimant or association, by virtue of one location and record. Lode
claims, maximum size 600 ft by 1,500 ft (182.9 m by 457.3 m). Placer
claims 600 ft by 1,320 ft (182.9 m by 402.4 m). A claim is sometimes
called a location. See also:title; mining claim.
b. S. Afr. Land on a mining field to which a miner is legally entitled. A
Transvaal claim has an area of 64,025 ft2 (5,947.9 m2 or
60,000 Cape square feet). It is about 155 ft (47.3 m) along the strike of
the reef, and 413 ft (125.9 m) across the line, or along the dip of the
reef. An area of 1.44 claims is equal to a South African morgen. In Cape
feet, the claim is 150 ft by 400 ft (46.2 m by 122.0 m). Mining maps are
often designed in squares of 1,000 Cape feet by 1,000 Cape feet (304.9 m
by 304.9 m), which, therefore, contain about 16 claims measured
horizontally. Beerman
c. In Australia, a claim is defined as the portion of Crown land that any
person or number of persons shall lawfully have taken possession of and be
entitled to occupy for mining purposes. No land comprised in any mining
lease can be considered to be a claim. A claim is marked out by fixing in
the ground posts at each angle of the claim, and it need not be surveyed.
A miner is required to hold a miner's right before legally marking out or
working a claim. Nelson
In the Federal mining law, means locator. Ricketts
The location of a mining claim on supposedly excess ground within the
staked boundaries of an existing location on the theory that the law
governing the manner of making the original location has not been complied
with. Ricketts
The phrase "held in common" means a claim whereof there are more owners of
a claim than one; the use of the words "claims held in common," on which
work done upon one of such claims shall be sufficient, means that there
must be more than one claim so held, to make a case where work upon one of
them shall answer the statutory requirements as to all of them.
Ricketts
A system used mainly in the United States that grew up in the early days
of mining in the Western United States following the gold rush of 1849, as
an outgrowth of the desire of a prospector to develop a mineral deposit
discovered on the public lands and to have the claim confirmed by law. The
mining laws of the United States are based on this system, whereas most
other mining countries follow the concession system.
CF:concession system
a. A clip; a haulage clip; an appliance for attaching mine cars to a rope.
See also:clip
b. A clamshell bucket. Nichols, 1
c. To mud-in the door of a kiln. ACSG, 2