In oceanography, a bathythermograph. Webster 3rd
In oceanography, a ship (as a submarine or bathysphere) designed for
exploration of or navigation in water far below the surface of a sea or
lake. Webster 3rd
Eng. Lowering a drift or road. See also:bate
a. A strip of wood used for nailing across two other pieces (as to hold
them together or to cover a crack). Webster 3rd
b. A piece of square-sawn converted timber, between 2 in and 4 in (5.1 and
10.2 cm) in thickness and from 5 to 8 in (12.7 to 20.3 cm) in width. Used
for flooring or as a support for laths. CTD
c. A bar fastened across a door, or anything composed of parallel boards
to secure them and to add strength and/or reduce warping. CTD
a. Recessing or sloping a wall back in successive courses; opposite of
corbel. ACSG, 1
b. A paste of clay or loam. Webster 2nd
c. The inward slope from bottom to top of the face of a wall.
Nichols, 1
d. A pile driven at an angle to widen the area of support and to resist
thrust. Nichols, 1
Horizontal boards placed to mark a line and a grade of a proposed building
or slope. Nichols, 1
A set of mine timbers in which the posts are inclined.
An instrument for measuring inclination from the vertical.
Standard, 2
a. See:blasting machine; exploder. Nelson
b. A number of similar machines or similar pieces of equipment placed side
by side on a single or separate base and by means of common connections as
a unit. Long
c. Mine support in which timbers are placed in groups of 3 to 12 or more.
The battery may be strengthened by binding with wire. Spalding
d. A wooden platform for miners to stand upon while at work, esp. in
steeply dipping coal beds.
e. A series or row of coke ovens. Mersereau, 2
f. A bulkhead or structure of timber for keeping coal in place.
Hess
g. The plank closing the bottom of a coal chute.
h. A series of stamps, usually five, operated in one box or mortar, for
crushing ores; also, the box in which they are operated. Hess
i. A stamper mill for pulverizing stone. Gordon
j. Timbering in which the sticks are placed from foot to hanging wall,
touching each other, in a solid mass of 3 to 12 or more. The battery may
be further strengthened by binding around with wire. Spalding
k. In steeply pitching seams, a wooden structure built across the chute to
hold back blasted coal. Korson
l. A number of stamps for crushing and pulverizing ores. Nelson
m. Section of ore dressing (reduction) plant. Pryor, 3
n. A combination of chemically activated accumulators, which, after
charging, may be used for a considerable time as a source of
direct-current electricity. Also called storage battery. Long
A number of charges, in drill holes, fired simultaneously with an electric
current. Also called multiple shot. Fay
A row or group of ovens for making coke from coal.
A type of manganese ore, generally a pure crystalline manganese dioxide
(pyrolusite or nsutite), that is suitable for use in dry cells.
AGI
In anthracite and bituminous coal mining, one who charges and sets off
explosives in large lumps of coal or where these lumps have accumulated
and blocked the flow of coal down chutes from the storage structures
(batteries). Also called batteryman; chute tender; starter. DOT
The use of unconfined explosives to start the flow of coal down a breast
or chute in an anthracite mine. CFR, 4
A beam. Mason
Designating or conforming to either of the scales used by the French
chemist, Antoine Baume (1728-1804). One scale, which is used with liquids
heavier than water, sinks to 0 degrees (B or Be, symbols for Baume) in
pure water and to 15 degrees (B or Be) in a 15% salt solution. The other
scale, for liquids lighter than water, sinks to 0 degrees (B or Be) in a
10% salt solution and to 10 degrees (B or Be) in pure water.
Webster 2nd
A lead- to steel-gray triclinic mineral, Pb3 As4 S9 .
A washbox in which the pulsating motion is produced by the intermittent
admission of compressed air to the surface of the water following a
principle introduced by Baum. Also called Baum box; Baum-type washbox.
See also:jig
a. A cavity left in roof strata over coal as a result of the dropping
downward of a cast of a fossil tree stump after removal of the coal.
AGI
b. Eng. Nodule in the roof of the Halifax hard bed coal. CF:potlid
Arkell
See:Baum jig