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Show new changes starting from 17:30, 25 July 2021
   
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21 July 2021

N    16:21  Bridgewire diffhist +208 Webref talk contribs Created page with "A resistance wire connecting the ends of the leg wire inside an electric detonator and which is embedded in the ignition charge of the detonator. <br/>Source: Dictionary of M..."
N    16:21  Bridged diffhist +317 Webref talk contribs Created page with "A borehole plugged by debris lodged at some point above the bottom of a hole. The hole may be bridged deliberately by introducing foreign material into the hole or accidenta..."
N    16:20  Bridge wall diffhist +145 Webref talk contribs Created page with "A low separating wall, usually made of firebrick, in a furnace. <i>Webster 3rd </i> <br/>Source: Dictionary of Mining, Mineral, and Related Terms"
N    16:20  Bridge tramway diffhist +215 Webref talk contribs Created page with "Consists of two steel bridge trusses braced together so as to form between them a runway on which a bucket-carrying trolley runs. <i>Pit and Quarry </i> <br/>Source: Dictiona..."
N    16:20  Bridge the hole diffhist +219 Webref talk contribs Created page with "Deliberate plugging of a borehole at a point some distance above the bottom by introduction of some type of foreign material or a plug. See also: bridge <br/>Source: Dict..."
N    16:20  Bridge over diffhist +125 Webref talk contribs Created page with "Collapse of a well bore around the drill stem. <i>Williams </i> <br/>Source: Dictionary of Mining, Mineral, and Related Terms"
N    16:12  Bridge conveyor diffhist +280 Webref talk contribs Created page with "A conveyor that is supported at one end by a loading unit and at the other end in such a way as to permit changes in the position of either end without interrupting the oper..."
N    16:12  Bridge break diffhist +212 Webref talk contribs Created page with "The time that elapses between the application of current and the fusion of the bridge wire when using instantaneous blasting caps. <i>Streefkerk </i> <br/>Source: Dictionary..."
N    16:11  Bridge diffhist +1,804 Webref talk contribs Created page with "# A rock fragment, cavings, or other obstruction that lodges (either accidentally or intentionally) part way down in a drill hole (such as in an oil well). <i>AGI </i> # Debri..."
N    16:08  Bride cake diffhist +290 Webref talk contribs Created page with "A black, highly carbonaceous slickensided shale with Carbonicola shells, in the Adwalton stone or Flockton thick coal; also, dirty smudgy coal in the roof of the Stanley Mai..."
N    16:08  Bridal diffhist +236 Webref talk contribs Created page with "Staff. A contrivance used in coal mining to prevent cars from overturning upon steep inclined planes having a rise of 1 ft in 3 ft or 4 ft (1 m in 3 m or 4 m). <i>Hess </i>..."
N    16:08  Bricking scaffold diffhist +190 Webref talk contribs Created page with "A staging or platform suspended in a sinking shaft on which masons stand when building brick walling. Syn: walling scaffold <br/>Source: Dictionary of Mining, Mineral, an..."
N    16:01  Bricking curb diffhist +141 Webref talk contribs Created page with "A curb set in a circular shaft to support the brick walling. See also: curb <br/>Source: Dictionary of Mining, Mineral, and Related Terms"
N    15:54  Bricking diffhist +95 Webref talk contribs Created page with "The walling or casing of a shaft. <br/>Source: Dictionary of Mining, Mineral, and Related Terms"
N    15:54  Brick walling diffhist +510 Webref talk contribs Created page with "A permanent support for circular shafts. On reaching the rockhead, a firm ledge is prepared to receive the first bricking curb or ring. The curb is fixed correctly with refe..."
N    15:54  Brick fuel diffhist +108 Webref talk contribs Created page with "In Wales, patent fuel. See also: briquette <br/>Source: Dictionary of Mining, Mineral, and Related Terms"
N    15:53  Brick earth diffhist +407 Webref talk contribs Created page with "Earth, clay, or loam suitable for making bricks; specif. a fine-grained brownish deposit consisting of quartz and flint sand mixed with ferruginous clay; found on river terr..."
N    15:53  Brick coal diffhist +143 Webref talk contribs Created page with "Eng. Small, dirty coal suitable for brick kilns and similar purposes. <i>Fay </i> <br/>Source: Dictionary of Mining, Mineral, and Related Terms"
N    15:53  Brick clay diffhist +257 Webref talk contribs Created page with "An impure clay, containing iron and other ingredients. In industry the term is applied to any clay, loam, or earth suitable for the manufacture of bricks or coarse pottery...."
N    15:53  Brewster's law diffhist +512 Webref talk contribs Created page with "# The index of refraction of a crystalline substance is equal to the tangent of its angle of polarization. <i>Pryor, 3 </i> # In optics, where light is reflected from a smooth..."
N    15:52  Brewsterlinite diffhist +210 Webref talk contribs Created page with "Liquid plus vapor CO<sub>2</sub> in cavities in minerals; e.g., quartz, topaz, and chrysoberyl. The meniscus vanishes under the warmth of the hand. <br/>Source: Dictionary of..."
N    15:52  Brewsterite diffhist +170 Webref talk contribs Created page with "A monoclinic mineral, (Sr,Ba,Ca)Al<sub>2</sub> Si<sub>6</sub> O<sub>16</sub> .5H (sub 2) O ; zeolite group. <br/>Source: Dictionary of Mining, Mineral, and Related Terms"
N    15:51  Breunnerite diffhist +136 Webref talk contribs Created page with "A ferroan variety of magnesite used in the manufacture of magnesia bricks. <br/>Source: Dictionary of Mining, Mineral, and Related Terms"
N    15:51  Brettis way‎‎ 2 changes history +192 [Webref‎ (2×)]
     
15:51 (cur | prev) +2 Webref talk contribs
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15:51 (cur | prev) +190 Webref talk contribs Created page with "Derb. A road in a coal mine, supported by brattices built on each side after the coal has been worked out. See also: brattice <br/>Source: Dictionary of Mining, Mineral, an..."
N    15:29  Brettice cloth diffhist +121 Webref talk contribs Created page with "A variation of brattice cloth. See also: brattice cloth <br/>Source: Dictionary of Mining, Mineral, and Related Terms"
N    14:34  Breton pan diffhist +188 Webref talk contribs Created page with "Large steel mortar in which a heavy steel pestle rolls. Once used in grinding and amalgamation of gold ores. <i>Pryor, 3 </i> <br/>Source: Dictionary of Mining, Mineral, and..."
N    14:34  Brenston diffhist +80 Webref talk contribs Created page with "See: brimstone <br/>Source: Dictionary of Mining, Mineral, and Related Terms"
N    14:34  Breithauptite diffhist +111 Webref talk contribs Created page with "Nickel antimonide, NiSb. See also: niccolite <br/>Source: Dictionary of Mining, Mineral, and Related Terms"
N    14:34  Breeze oven diffhist +183 Webref talk contribs Created page with "# An oven for the manufacture of small coke. <i>Fay </i> # A furnace designed to consume breeze or coal dust. <i>Fay </i> <br/>Source: Dictionary of Mining, Mineral, and Relat..."
N    14:33  Breeze concrete diffhist +245 Webref talk contribs Created page with "A concrete made of 3 parts coke breeze, 1 part sand, and 1 part portland cement. It has poor fire-resisting qualities but it is cheap and nails can be driven into it. <i>Nel..."
N    14:33  Breeze diffhist +371 Webref talk contribs Created page with "# Coke of small size; the undersize remaining after separating the smallest size of graded coke. Also spelled breese. <i>BS, 3 </i> # The dust from coke or coal. <i>Mersereau,..."
N    14:32  Breese diffhist +77 Webref talk contribs Created page with "See: breeze <br/>Source: Dictionary of Mining, Mineral, and Related Terms"
     14:29  Breeder reactor diffhist +305 Webref talk contribs
N    14:29  Breeching diffhist +128 Webref talk contribs Created page with "Mid. Drawing loaded trams downhill underground. Syn: britching <br/>Source: Dictionary of Mining, Mineral, and Related Terms"
N    14:28  Bredigite diffhist +170 Webref talk contribs Created page with "An orthorhombic mineral, Ca<sub>7</sub> Mg(SiO<sub>4</sub> )<sub>4</sub> ; pseudohexagonal. CF: larnite <br/>Source: Dictionary of Mining, Mineral, and Related Terms"
N    14:28  Brecciated diffhist +285 Webref talk contribs Created page with "Converted into, characterized by, or resembling a breccia; esp. said of a rock structure marked by an accumulation of angular fragments, or of an ore texture showing mineral..."
N    14:28  Breccia diffhist +677 Webref talk contribs Created page with "# Clastic rock made up of angular fragments of such size that an appreciable percentage of rock volume consists of particles of granule size or larger. <br/>Source: Leet,..."
N    14:26  Breathing cave diffhist +238 Webref talk contribs Created page with "# A cave in which air is alternately blown out and sucked in at the entrance. <i>Schieferdecker</i> # A narrow part in a passage through which air blows. <i>Schieferdecker </i..."
N    14:25  Breathing apparatus diffhist +2,927 Webref talk contribs Created page with "# A filter self-rescuer (FSR) is a respiratory protective device that filters ambient air of carbon monoxide, converting it to carbon dioxide. Exhaled air is vented back to am..."
N    14:24  Breathing diffhist +201 Webref talk contribs Created page with "Alternate expansion and contraction of air in breaks that allows fresh oxygen to be drawn in and oxidation to proceed. <i>Sinclair, 1 </i> <br/>Source: Dictionary of Mining,..."
N    14:23  Breastplate diffhist +193 Webref talk contribs Created page with "A slightly curved iron plate fastened to the end of a coal auger to enable a miner to press the auger forward using body pressure. <br/>Source: Dictionary of Mining, Mineral,..."
N    14:22  Breasting diffhist +458 Webref talk contribs Created page with "# N. Staff. A short leading stall, worked at right angles to, and forming the face of, the main level. # A wide heading or level. # Eng. Taking ore from the face or head of a..."

20 July 2021

N    16:07  Breaster diffhist +172 Webref talk contribs Created page with "In tunnel blasting, holes that parallel the tunnel alignment drilled between the cut and the perimeter holes. <br/>Source: Dictionary of Mining, Mineral, and Related Terms"
N    16:06  Breast-and-pillar diffhist +313 Webref talk contribs Created page with "Pennsylvania. A system of working anthracite coal by bords 10 yd (9.1 m) in width, with narrow pillars 5 yd (4.6 m) wide between them, holed through at certain intervals. Th..."
N    16:06  Breast wall‎‎ 2 changes history +216 [Webref‎ (2×)]
     
16:06 (cur | prev) -1 Webref talk contribs
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16:06 (cur | prev) +217 Webref talk contribs Created page with "A wall designed to withstand the force of a natural bank of earth, such as of timber used to support the face of a tunnel. Syn: jamb wall <i>AGI </i> <br/>Source: Dictio..."
N    16:06  Breast timber diffhist +147 Webref talk contribs Created page with "A leaning brace from the floor of an excavation to a wall support. <i>Nichols, 1 </i> <br/>Source: Dictionary of Mining, Mineral, and Related Terms"
N    16:04  Breast stoping diffhist +295 Webref talk contribs Created page with "A method of stoping employed on veins where the dip is not sufficient for the broken ore to be removed by gravity. The ore remains close to the working face and must be load..."
N    16:04  Breast machine diffhist +410 Webref talk contribs Created page with "A machine used for undercutting coal in which the main frame and carriage are held stationary by roof jacks while the cutter frame advances into the kerf during the cutting..."


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