(under the class definition) Device in which means to move or render active means to maintain or retain work stationary, or means to move or render active means presenting an obstacle or bar to work movement, cooperates significantly with means to move a tool through a tool stroke* or a part of such stroke.
(1) Note. This subclass includes a device in which the immobilizer is merely mounted on the tool or tool support, even though the motion of the immobilizer may have no useful effect on the work; e.g., the immobilizer is movably mounted merely as a convenience or to simplify the machine design.
(2) Note. This subclass includes work immobilizers which restrain and hold work stationary by means of suction, magnetic attraction, impaling pins, or locating pins, as well as immobilizers which clamp work or provide stopping abutment therefor.
SEE OR SEARCH THIS CLASS, SUBCLASS:
181+, for interrelated tool actuating means and means for immobilizing hollow work.
202+, for interrelated tool actuating and work moving means, with incidental showings of work immobilizers in many subclasses which relate to the stopping or holding of work. 367, for work movement controlled by means responsive to work in a cutting machine.
373, for interrelated tool actuating and work guide moving means.
451+, for work immobilizer generally associated with a cutting machine.
454+, for a work clamp interrelated to or combined with a tool guide.
