A scraper for coal with chisel holders in the manner of flaps, preferably provided for both directions of travel, and chisels openers, preferably plate-shaped opening chisels, which penetrate the coal front considerably more than the depth of cut of the main chisels, said opening chisel holders being pivotable within certain limits, characterized in that the opening chisel plates or the like, are connected through bars with the inner sides of the chisel flaps. (Machine-translation by Google Translate, not legally binding)
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