Mechanical grab to fill trenches - has arm and shaft of equal length articulating over trench and carrying scraper in housing

摘要

The mechanical grab has an arm and a shaft of equal length articulating in the working position over the trench. At one end of the working arm (6) is an angled section (7) housing the axis of articulation (8) and at the other end is a push or pull blade (10) with a blunt end (11) uses as a tamper. The arrangement and shape of the working arm allows the blade to work on the fill with the full force of its working jack.