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A Bitelli road pavement recycler on wheels. The material is not being recycled here but instead thrown to the side of the road. A road recycler or road reclaimer is an asphalt pavement grinder or a combination grinder and soil stabilizer when it is equipped to blend cement, foamed asphalt and/or lime and water with the existing pavement ...
Needpix - library of more than 1.5 million free, or so-called Public Domain Photos and Illustrations licensed with CC0. PDPics.com – Public domain photo collection with about 7400 high resolution pictures up to 6000x4000. All images licensed under CC0 license. Smithsonian Institution – Open Access – 2.8 million Free Public Domain images ...
The first working fax machine, invented by the English physicist Frederick Bakewell in 1847, was in essence an early drum scanner. Instead of scanning a paper print or transparency using light, however, the revolving drum of Bakewell's machine is coated in tinfoil, with non-conductive ink painted on the foil and a stylus that scans across the drum and sends a pulse down a pair of wires when it ...
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A trommel in series is a single drum whereby each section has different apertures size arranged from the finest to the coarsest [10] The trommel screen has many different configurations. For the drum component, an internal screw is fitted when the placement of the drum is flat or elevated at an angle less than 5°.
Their reactions were encouraging, so Joe, Mark and Donald Stone incorporated Pollard Industries and starting selling Syndrums in Culver City, California. There were two models sold at the time, the single drum 177 and the four drum 477. Syndrums were a musical success with a surplus of endorsees, but a financial failure for the young company.
Alexander Murray and Richard Morse invented and patented the first analog color scanner at Eastman Kodak in 1937. Intended for color separation at printing presses, their machine was an analog drum scanner that imaged a color transparency mounted in the drum, with a light source placed underneath the film, and three photocells with red, green, and blue color filters reading each spot on the ...