COIL SHIELDS FOR LIFTING MAGNETS

Brand	Owner	Address	Description
AMSCO	AMERICAN BRAKE SHOE COMPANY	NEW YORK, N.Y.	COIL SHIELDS FOR LIFTING MAGNETS; MAGNETIC DRUMS FOR SEPARATORS; METAL FILLER BARS FOR MAGNETIC BRAKES; FINGERS FOR STATOR CORES; FERROUS ELECTRODE-HOLDERS AND FERROUS BUS-BAR CLAMPS FOR ELECTRIC FURNACES;
	Where the owner name is not linked, that owner no longer owns the brand

Technical Examples

An objective-lens driving apparatus, includes an objective lens for converging light on a recording surface of an optical disk, a focusing coil having four edges for enclosing the objective lens, and two pairs of permanent magnets. The two pairs of permanent magnets are arranged so that polarities thereof are identical toward the focusing coil, with one pair of the permanent magnets arranged so as to be opposed to one edge of the focusing coil, and another pair of the permanent magnets arranged so as to be opposed to another edge of the focusing coil which is opposite to the one edge of focusing coil. An interval between two permanent magnets constituting the one pair of the permanent magnets is narrower than an interval between two permanent magnets constituting the another pair of the permanent magnets.