Design and Testing of Bureau of Mines Pneumatic Coal Planer |
Common terms and phrases
45 tons air consumption air pressure air requirements Average bail bed Sandstone Upper blade Bone bony coal bottom coal bottom knife Bureau of Mines chain pull chain-piling air motor chain-piling motor coal face compressed air Compressed-air operating pressures compressed-air requirements cutting end depth of cut efficiency Face arrangement Face at completion feet Figure feet per minute Graphic wattmeter chart hard anthracite holding the planer hot-work tool steel inches in thickness inches inches inches initial tests intervals during coal-planer Lehigh Valley Coal longwall face Measured depths Metals Handbook Mines pneumatic coal Molybdenum planer knives planer travel Planer winch pneumatic coal planer pneumatic hammers pneumatic planer pneumatic pushers Points of measurements proper pull line rear representative bed section Rock Scale shock-resistant tool steel showing minable coal speed steels already tried sulfur bands test runs thwart-type chain TOP VIEW undulating floor wire rope World War II ייך