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Device for in situ measurement of coal cutting forces

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Device for in situ measurement of coal cutting forces
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    "The Bureau of Mines devised and demonstrated a portable linear- cutting tester that directly measures and records the in situ cutting forces required of continuous-mining machine picks to cut coal in underground mines. It requires only two operators to transport and operate the tester, which can be assembled and operated through a complete test cycle within a single mine work shift. This report reviews the factors considered in the design and development of the tester and the results of its system verification testing at coal mine sites." - NIOSHTIC-2 NIOSHTIC no. 10004371
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