197609 ⎘
Recording by mechanical cutting, deforming or pressing, e.g. of grooves or pits; Reproducing by mechanical sensing; Record carriers therefor; Arrangements of heads; Arranging, supporting, or driving of heads or of transducers relatively to record carriers; Supporting in balanced, counterbalanced or loaded operative position during transducing , e.g. loading in direction of traverse by using effects of gravity or inertia, e.g. counterweight Providing horizontal force, e.g. anti-skating force