(under subclass 263) Apparatus combined with a movable member which engages the laterally movable cutter element to hold it in one position.
(1) Note. A mere spring or other resilient element which urges the cutter element laterally of the bit head is excluded and will be found in subclass 291.
SEE OR SEARCH THIS CLASS, SUBCLASS:
271, for laterally shiftable cutter elements having a latch operated by fluid pressure or a dropped element.
275+, for laterally shiftable cutter elements having a mechanism spring biasing the cutter to operative position and a separate latch.
287, for laterally shiftable cutter elements moved by a longitudinally relatively movable cam or gear and having a separate latch holding the cutter element in shifted position.
