A unit of measurement often used for the work done in transport. The
number of ton-kilometers is the weight in tons of material transported
multiplied by the number of kilometers driven. Stoces
A system that permits calculating how hard an earth-moving tire should
work and how much work it is doing. The Ton MPH for any tire is determined
by multiplying the mean load and average speed. The resulting figure
provides an index to the work a tire is doing. The system enables the
operator to determine which type of tires to use to get top performance
without overheating. Coal Age, 3
Cubic feet of ore per ton in deposit. Pryor, 3
In anthracite coal mining, a person who is paid at a certain rate per ton
of coal mined. DOT
The extraction of 200 Btu/min (211 kJ/min), 12,000 Btu/h (12.7 MJ/h), or
288,000 Btu/d (3.1 GJ/d). The last is also called a ton-day of
refrigeration. A ton of refrigeration is equal to 3.5168 kW of heat
removal. Strock, 2
An apparatus for measuring damping values. Osborne
A compact argillaceous rock containing the clay mineral kaolinite in a
variety of forms together with occasional detrital and carbonaceous
material; commonly occurring as a thin band in a Carboniferous coal seam
(or locally in the roof of a seam); often used as an aid in correlating
European strata of Westphalian age. AGI
See:powder box
A lazy miner, specif. one who rests on a tool box while another miner does
the work. Korson
The driller's helper on a cable tool rig. Syn:cable-tool dresser;
toolie. AGI
An implement for grasping and withdrawing drilling tools when broken,
detached, or lost in a borehole. A fishing tool. Also called tool grab.
Long
In stonework industry, one who grinds the cutting tools for stoneworking
planers and lathes to a keen edge of the desired shape. DOT
One who hardens and tempers tools, dies, and fixtures.
A worker who sharpens churn-drill bits; a dresser.
See also:tooldresser
A worker skilled in the making of jigs, fixtures, gauges, etc.
Crispin
A person who carries powder, drills, and tools to the various levels of a
mine and brings dulled tools and drills to the surface. Fay
a. The head driller or drill foreman. Long
b. The general supervisor of operations on a drilling rig. More commonly
used in petroleum drilling. AGI
Industrial diamond used for wire-drawing dies, indentor points,
shaped-diamond tools, glaziers, and dressers. Toolstones approach gem
diamonds in perfection, although not in color. The finer grades may be
identical with diamonds sold as low-grade gems. The lower grade toolstones
are also sometimes used as drill diamonds. CF:drill diamond
Long
a. Steel projections on a tool, such as a saw or excavation bucket,
designed to provide a cutting or increased digging action.
b. A projection on the circumference of a wheel (gear), designed to engage
corresponding projections on another wheel (cog), and thereby transmit
force.
a. The inner part of a two-piece tooth on a digging bucket.
Nichols, 1
b. Occasionally, the socket in which a tooth fits. Nichols, 1
A brake used to hold a shaft by means of a tooth or teeth engaging with
fixed sockets. Not used for slowing or stopping. Nichols, 1