(under subclass 297) Subject matter including means to adjust the position of the magnetic core element to vary the airgap spacing.
(1) Note. This subclass also includes electromagnets with means for adjusting the position of the connecting back strap relative to the magnetic cores to vary the reluctance of the electromagnet.
SEE OR SEARCH THIS CLASS, SUBCLASS:
86, for polarity responsive switches with adjusting means.
212, for electron or ion beam deflecting magnets with adjustable magnetic element.
237, for electromagnet and armature with adjustable shunt path.
273, for electromagnets with means to adjust the position of the armature with respect to the core element. 287, for work holding magnet with angularly adjustable fixture.
295, for work holding magnet with magnetic hold control means.
SEE OR SEARCH CLASS
336, Inductor Devices, appropriate subclasses for inductors with adjustable cores, especially
132+, for inductors with relatively movable core parts.
