Scraper
AssigneeFirma Johannes Fuchs
InventorsGeorg Thierer, Hans Dolinsek
Life of this patent
Estimating the term…
Abstract
This disclosure relates to an automatically controlled scraper for moving particulate material onto a radial or star feeder for distribution thereby. The scraper includes a scraper bucket suspended from a radially extending arm. The bucket is connected to both a digging cable line and a lifting cable line, each of which is in turn connected to a suitable winch. The winches are controlled by clutches and brakes, each of which are optionally activated by interconnected automatic and manual control elements, whereby operation may be selectively changed from automatic to manual at the discretion of the operator.
Claims13
Apparatus for scraping piled-up particulate material against a radial feeder comprising a scraper mounted on a support portion of said feeder, an arm pivotably mounted on said support, a scraper bucket suspended from said arm by a lifting cable line connected to a lifting winch, a digging cable line connected at one end thereof to said bucket and at the other end thereof to a digging winch, motor means for driving said winches, clutch means for connecting said winches with said motor means, brake means for braking said winches, manual control means for directly manually actuating said clutch means and said brake means through linkage means interconnecting said manual control means with said clutch means and said brake means respectively, and power-controlled means for automatically actuating said manual control means, whereby manual and automatic operation are optionally selectable.
Dependencies are inferred from the claim text.