.~ Tools assume different angularity for opposite draft
DEFINITION
Classification: 172/618
(under subclass 613) Apparatus in which the earth working elements or tooth bars pivot about a horizontal transverse axis to different working angles when draft force is applied to the apparatus in opposite directions and including means to limit the movement of the elements or tooth bars to a particular angularity in both directions.
SEE OR SEARCH THIS CLASS, SUBCLASS:
712, for an earth working element which assumes different working angles when drawn in opposite directions.
777+, for a narrow depending tool removably attached to a scraper which assumes different angularity when drawn in opposite directions.
