The scraper has dragline operating in a manual or automatic

摘要

Scraper has dragline operating manual or automatic mode. / p & & p & the scraper comprises a set of auxiliary motor which, during operation in automatic mode, produces a supplement to the motor causing, during the scraping, the drum of the traction cable 9, called "drum scraper", whereas, during the withdrawal, the said auxiliary motor acts on the drum scraper in such a manner that the traction cable 9 and the return cable 10 is moving substantially at the same linear speed. / p & & p & application: the transport of materials in bulk.