G - Physics – 11 – B
Patent
G - Physics
11
B
352/21
G11B 15/18 (2006.01) G11B 15/10 (2006.01)
Patent
CA 1169552
PHN.9898 40 2.7.81 ABSTRACT Apparatus for recording and/or reproducing signals on a magnetic tape" An apparatus for recording and/or reproducing signals on a magnetic tape is provided with two reel discs (97, 98; 160, 161), at least one magnetic head ( 17, 18; 165, 166) which is arranged on a head slide (19; 164, 194), a pressure roller (137; 180) arranged on a pivotable pressure-roller arm (135; 179) and which is movable against a capstan (96, 185), a central drive wheel (83; 157) which is rotatable in two directions and which, via normal-mode and fast-mode idler wheels (84, 169 and 91; 159 respectively) carries on pivotable arms, can drive the reel discs, and a pivotable switching lever (114, 176, 206) which is adapted to be coupled to the pressure-roller arm, the fast-mode idler arm and the normal-mode idler arm and to brake arms (104, 105; 171, 173). Depending on the direction of rotation of the central drive wheel the fast-mode idler arm is pivoted from an inoperative position into a first or second operative position respectively. In a first position control means which are adjustable to two positions limit the pivotal movement of the switching lever to movement into a first, partly pivoted operating position, in which first position of the control means the fast- mode idler arm is uncoupled from the switching lever so that the fast-mode idler arm is pivoted. In the second position of the control means the switching lever is pivotable into a fully pivoted second operating position, the fast-mode idler arm then occupying the inoperative position through the coupling of the fast- mode idler arm with the switching lever and the normal- mode idler arm being pivoted into the operative position. In both operating positions the switching lever is also coupled to the head slide.
389881
Aldenhoven Ghislanus M.a.m.
Schoenmakers Johannes J.m.
N.v. Philips Gloeilampenfabrieken
Van Steinburg C.e.
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