(under subclass 500) Devices in which the crop cutting means rotates about an axis which is perpendicular to the line of draft and which lies in a plane which is parallel to the ground.
SEE OR SEARCH THIS CLASS, SUBCLASS:
501, and 502, for the combination of air current or driven stalk gathering or pick up means with stalk chopping means, which latter means is generally disposed to rotate about a horizontal transverse axis.
505, Devices under subclass 504 in which a fixed, elongated, transversely disposed blade or plate is so associated with the rotary crop cutting means that during rotation of the latter the crop material will be sheared off between the blade or plate and a cooperating shearing surface or element
