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Laser profiling of a mine site by a coal miner using a Maptek I-site laser scanner in 2014. The use of sophisticated sensing equipment to monitor air quality is common and has replaced the use of small animals such as canaries, often referred to as "miner's canaries". [29]
Small groups of part-time miners used shovels and primitive equipment. After 1790 output soared, reaching 16 million long tons by 1815. By 1830 this had risen to over 30 million tons [ 14 ] The miners, less menaced by imported labor or machines than were the textile workers, had begun to form trade unions and fight their battle for control ...
Small groups of part-time miners used shovels and primitive equipment. Scottish miners had been bonded to their "maisters" by a 1606 Act "Anent Coalyers and Salters". A Colliers and Salters (Scotland) Act 1775, recognised this to be "a state of slavery and bondage" and formally abolished it; this was made effective by a further law in 1799. [55 ...
Miners' clothing (5 P) Mining equipment companies (2 C, 34 P) R. ... Pages in category "Mining equipment" The following 77 pages are in this category, out of 77 total.
These coal miners worked in company mines with company tools and equipment, which they were required to lease. Along with these expenses, the miners were deducted pay for housing rent and items they purchased from company stores. Many coal companies paid miners with company scrip (private money), good only at company-owned stores. [25]
In its second quarter analyst meeting, BHP Billiton noted that demand for mining equipment is low, which generally precedes reduced supply. This is another good sign for currently struggling ...