(under subclass 55) Apparatus in which the extractor includes spaced members between which an object being unearthed in grasped at least one of said members being in the form of a rotatably mounted (1) wheel or narrow circular device having a lateral, peripheral, article- engaging face or (2) an elongated device having a generally cylindrical or conical article-accommodating periphery.
(1) Note. The spaced members may in either case be provided with either continuous peripheral surfaces or with spaced elements lying along the periphery of a cylinder or cone.
(2) Note. The disk-type extractors are generally disposed in nonparallel planes to provide zones where they approach and recede in order to grasp and release an article while the cylindrical extractors are generally but not necessarily, disposed with their axes diverging in order to feed the unearthed object longitudinally of the cylinder.
SEE OR SEARCH THIS CLASS, SUBCLASS:
28, for opposed roller-type plant part detachment means for removing desired portions from a plant.
57, for roller-type extractors which include a screw shaped member.
