a. To make watertight; to seal off; an airtight and watertight wall
against old mine workings. See also:seal; sealed-off area.
Nelson
b. A small cofferdam constructed of timber and made watertight with clay.
Hammond
c. See:stanking
a. A watertight stopping or bulkhead. BS, 10
b. The application of a waterproofing material to a stopping or bulkhead.
BS, 10
Stanley compensating diaphragm
A specially designed theodolite used as a direct reading tacheometer.
See also:Beaman stadia arc
See:header
a. A tin mine or tin works. Webster 2nd
b. One of the regions in England containing tinworks and formerly placed
under jurisdiction of special courts. Usually used in plural.
Webster 3rd
Eng. Courts in Cornwall and Devonshire for the purpose of regulating the
affairs of tin mines and tin miners.
An early name applied to Cornish tin miners.
Relating to or containing tin; as, stanniferous ore.
See:stannite
a. A tetragonal mineral, Cu2 FeSnS4 ; zinc may replace iron;
tannite group; metallic; in granular masses in veins associated with
cassiterite. Syn:tin pyrites; bell-metal ore.
b. The mineral group briartite, cernyite, famatinite, hocartite, kuramite,
luzonite, permingeatite, pirquitasite, sakuraiite, and stannite.
c. Impure cassiterite. Syn:tin pyrites; stannine.
A hexagonal mineral (Pd,Cu)3 Sn2 (?) .
See:salt of tin
See:tin
A black variety of retinite having a very high oxygen content (23%).
Syn:black amber
Historically, a plot of the airflow friction coefficient against the
Reynolds number is referred to as a Stanton diagram.
a. A shaft that is smaller and shorter than the principal one and joins
different levels. Webster 3rd
b. An internal shaft connecting two coal seams. Also called staple pit.
CF:winze
a. An underground shaft, which does not penetrate to the surface.
Fraenkel
b. A relatively small vertical pit connecting a lower seam to an upper
seam. It corresponds to a rise or winze in metal mining. A staple shaft is an important drivage in horizon mining and may be used for dropping coal
or stowing dirt to a lower level. It is often equipped with a spiral chute
or an auxiliary winder system with a single cage and counterweight.
See also:subincline
In minerals, the presence of needlelike oriented inclusions aligned along
crystallographic axes, generally in the plane normal to the c axis in the
hexagonal and trigonal crystal systems. Syn:asteriated
Refined metallic antimony characterized by crystalline patterns resembling
stars or fern leaves on its surface. Also called star metal.
Webster 3rd
Used as depressant in flotation process. Alkaline starch (starch dissolved
in dilute sodium hydroxide) is a flocculating agent used in purifying the
water in coal-cleaning plants. Also known as amylum. Pryor, 3
A tool with a star-shaped point used for drilling in stone or masonry.
Crispin