(under subclass 263) Apparatus in which the laterally movable cutter element is resiliently urged to move laterally of the shaft axis.
SEE OR SEARCH THIS CLASS, SUBCLASS:
254, for core retaining or severing means mounted on a transverse pivot which is generally spring biased.
269, for laterally shiftable cutter elements which are
shifted by fluid pressure acting against a spring biased part.
274+, for laterally shiftable cutter elements with a shifting mechanism spring biased to operative position.
289, for laterally shiftable cutter elements moved by a longitudinally relatively movable cam or gear engaging a cutter element which is spring biased to retracted position.
