(under subclass 99) Implement which includes an element having a helical camming surface and a member having a follower movable along the surface so that relative rotation between the element and the follower causes the relative movement between the tool and the enclosing member.
SEE OR SEARCH THIS CLASS, SUBCLASS:
68+, for an implement in which similar relative movements are utilized for feeding or positioning a solid material tool.
172+, for an implement including a screw mechanism for moving a force-applying piston axially within a reservoir.
