dragline

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dragline

[′drag‚līn]
(mechanical engineering)
An excavator operated by pulling a bucket on ropes towards the jib from which it is suspended. Also known as dragline excavator.

dragline

dragline
A bucket attachment for a crane; used for removing earth by pulling the bucket toward the crane.
References in periodicals archive ?
It can be said that the modern dragline era began in the late 1960s when one of the major dragline suppliers took a fresh engineering approach and offered the first in a new series of draglines.
The project, which was three years in the making, included moving draglines at Luminant's Big Brown mine, Kosse mine and Martin Lake mines to newly developed mining areas, including its still-new Liberty complex.
"NA Coal has experience in Page, Bucyrus and Marion draglines, and this Page machine will be able to mine the whole coal reserve."
The success of the project will be judged on the physical uptake of automation technologies across mine sites as project partners use research outcomes for commercial development on draglines worldwide.
Nearly 60 self-propelled modular transporters, trailers powered by up to nine 600-horsepower engines, were used to move the draglines the smallest weighing six million pounds and the two largest weighing 13 million pounds each.
Draglines are not only some of the most efficient tools for moving material, they are likely the oldest continuously operating machines in the mining business.
All species of spider putatively produce silk draglines as they move through their environment.
Bucyrus International has built heavy excavating machinery for over a hundred years: it began in 1880 building equipment and became the leading supplier of draglines, shovels and drills for the mining industry, purchasing competitors and today building about 90 percent of the walking draglines in existence.
Moving draglines like Big Geordie can take days at a time.
Three walking draglines, expected to begin digging by 2001 at Coal India Ltd.'s Dudhichua and Nigahi mines, will use General Electric motor-generator sets for powering drag, hoist, and swing motions.