公开(公告)号：DE3103874A1

公开(公告)日：1982-09-09

申请号：DE3103874

申请日：1981-02-05

Applicant: BASF AG

Inventor： GEHRUNG MANFRED ING GRAD ,  SCHOETTLE KLAUS DIPL ING ,  KREISSLER HELMUT DIPL ING ,  RUDOLF PETER ING GRAD ,  HACK JOACHIM DIPL ING ,  ANSLINGER FRIEDRICH

IPC: G11B5/84 ,  B24B7/13 ,  B24B7/16 ,  B24B21/04 ,  B24B19/00

公开(公告)号：DE2801936A1

公开(公告)日：1979-07-19

申请号：DE2801936

申请日：1978-01-18

Applicant: BASF AG

Inventor： GEHRUNG MANFRED ING GRAD ,  RASEK EDUARD DIPL ING

IPC: G11B15/22 ,  G11B15/295 ,  G11B15/43 ,  B65H23/06

Abstract: The magnetic tape transport includes supply and take-up reels (23, 24) whch are ruged towards a capstan (21). Tape tension is kept constant by magnetic brakes (14, 15) on the reel shafts, which apply tape pack dia. dependent braking torques and vary the bias towards the capstan according to the required acceleration/deceleration. The brakes penetrate into the magnetic field(s) of at least one fixed magnetic system (28) to produce a braking effect by interaction with the field(s). Hysteresis or eddy current braking may be used and an electromagnet may supply the field(s).

公开(公告)号：DE2621723A1

公开(公告)日：1977-12-08

申请号：DE2621723

申请日：1976-05-15

Applicant: BASF AG

Inventor： WITTKAMP HEINRICH DIPL ING ,  GEHRUNG MANFRED ING GRAD

IPC: G11B23/107 ,  G11B23/08

Abstract: A cassette, particularly a cassette for a wide recording tape, consisting essentially of a lid-closable housing of plastics material, snap latch means being provided which interact between the long side of the lid and the wall of the housing opposite the lid hinge, which means consist, according to the invention, of cams on the lid and grooves in the wall of the housing, which cams and grooves engage each other to produce, when the cassette is opened, an initial closing force by deformation of the adjacent wall of the housing, in order to make opening of the cassette more difficult.