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The mixer already exhibited the still common basic construction with a tiltable conical drum (as double cone at that time) with blades. On February 9, 1904, the first portable concrete mixer was patented by Richard Bodlaender, an inventor from Breslau, Germany. [2] This concrete mixer was horse-drawn and called 'Mortar Mixer'.
A 10 MW cement mill, output 270 tonnes per hour. A cement mill (or finish mill in North American usage [1]) is the equipment used to grind the hard, nodular clinker from the cement kiln into the fine grey powder that is cement. Most cement is currently ground in ball mills and also vertical roller mills which are more effective than ball mills.
Belle Isle Clock near city hall. The Belle Isle area was first inhabited by the Timucua people circa the 9th century. The first organized government of Belle Isle was established in 1924, with C. H. Hoffner as the community's first mayor. This government lasted until 1928, when it was deactivated. Belle Isle was re-established in 1954, and has ...
When it comes to crime, not all criminals are reckless—some are incredibly calculated, leaving investigators puzzled for years. From meticulously planned heists to loophole-exploiting scams ...
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Belleville washer. A Belleville washer, also known as a coned-disc spring, [1] conical spring washer, [2] disc spring, Belleville spring or cupped spring washer, is a conical shell which can be loaded along its axis either statically or dynamically.