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公开(公告)号：JPS5226202A
公开(公告)日：1977-02-26
申请号：JP9750676
申请日：1976-08-17
Applicant: BASF AG
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公开(公告)号：DE2611666A1
公开(公告)日：1977-09-22
申请号：DE2611666
申请日：1976-03-19
Applicant: BASF AG
Inventor： SENKPIEL WERNER DIPL CHEM DR , SCHOEETTLE KLAUS DIPL ING , WITTKAMP HEINRICH DIPL ING , UHL KARL DIPL ING DR
Abstract: The invention is directed to a tape transport mechanism for recording and playing back video signals comprising a contact winding mechanism with tape-guiding means at the capstan and a magnetic tape in which the substrate is a polyethylene terephthalate film. The coated side of the tape, during transport, is in contact with the guide surface of the guide means, and no part of the transport mechanism at which slip could occur during the tape transport is allowed to be in contact with the tape substrate. The tape is wound with its substrate on the inside and its coated side is preferably abrasive with respect to the guide surface, which latter may advantageously consist either of steel or a ceramic material. The bonding agent of the magnetic dispersion - preferably a chromium dioxide dispersion - may be prepared from a polyurethane/polyvinyl chloride mixture which imparts the desired hardness to the tape. The arrangement can be advantageously employed with any kind of record/playback apparatus for video signals which includes a stationary head and develops high tape advance speeds.
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公开(公告)号：NL7609132A
公开(公告)日：1977-02-22
申请号：NL7609132
申请日：1976-08-17
Applicant: BASF AG
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公开(公告)号：DE2443663A1
公开(公告)日：1976-03-25
申请号：DE2443663
申请日：1974-09-12
Applicant: BASF AG
Inventor： NAGEL PETER DIPL ING , GRAU WERNER DIPL CHEM DR , MAIER HERMANN DR , WITTKAMP HEINRICH DIPL ING , FALK ROLAND DIPL CHEM DR , WILLMANN PAUL ING GRAD
Abstract: A high-speed roller system for transporting webs of sheeting, preferably for coating the same with a magnetic layer, comprising a suction roller for control of the speed of the web, which suction roller has a surface containing grooves, preferably rhombic grooves, in which the perforations for sucking the sheeting are disposed, preferably at the points of intersection, the ratio of the total cross-sectional area of the perforations to the total surface area of the roller being from 0.7 to 3%.
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公开(公告)号：GB1562601A
公开(公告)日：1980-03-12
申请号：GB3433176
申请日：1976-08-18
Applicant: BASF AG
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Patent Agency Ranking
公开(公告)号：DE2512455A1
公开(公告)日：1976-10-07
申请号：DE2512455
申请日：1975-03-21
Applicant: BASF AG
IPC: G11B23/04
Abstract: The tape cassette consists of a flat, rectangular block shaped housing containing the magnetic tape spool, which is coupled to the drive mechanism when the cassette is engaged. The cassette consist of two sections of near enough the same size which are hinged at one end. The roll of tape will be completely enclosed when the cassette is in the closed position. The components of the housing are held together by a spring mechanism, which consists of a two pronged locking spring (14), which acts as a hinge along the narrow side (46) of the cassette. Each of the arms (47, 48) of the locking spring is connected to a part (23) of the block shaped housing. The locking spring is leaf shaped and determines the theoretical axis of rotation.
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公开(公告)号：DE2257946A1
公开(公告)日：1974-06-06
申请号：DE2257946
申请日：1972-11-25
Applicant: BASF AG
IPC: G11B23/033 , G11B17/022 , G11B17/03 , G11B17/32 , G11B17/34 , G11B23/50 , G11B5/00 , G11B17/22
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公开(公告)号：DE2633111A1
公开(公告)日：1978-02-02
申请号：DE2633111
申请日：1976-07-23
Applicant: BASF AG
Inventor： NAGEL PETER DIPL ING , SENKPIEL WERNER DIPL CHEM DR , SCHOETTLE KLAUS DIPL ING , WITTKAMP HEINRICH DIPL ING , WOEPPEL DIETER , GLINIORZ LOTHAR , LECHNER HILMAR DIPL ING
IPC: B05C11/02
Abstract: The magnetic tape coating machine has the sheet (7) from which the tapes will be cut passing around a drive roller (6) under a container (13) holding the coating substance. An applicator lip distributes the substance onto the sheet as it travels towards a spreader bar (2). This is supported in a block (4) with a height adjusting screw (5) on top. The spreader bar (2) has an elastic rubber layer (3) around it and between this layer (3) and the sheet (7) is a foil. In another design, instead of a circular bar, two rectangular bars are used, which press down on a rubber sheet which in turn rests on the foil.
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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.
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公开(公告)号：DE2535276A1
公开(公告)日：1977-02-17
申请号：DE2535276
申请日：1975-08-07
Applicant: BASF AG
IPC: B65H23/26 , G11B15/295 , G11B15/60 , G11B15/66
Abstract: The invention relates to a process for the manufacture of a tape guide of large surface area for tape transport apparatus and to the tape guide manufactured thereby. In manufacturing the guide, a strip of material is elastically deformed, after which the deformation is maintained. One of the sides of the strip of material serves as guide surface for the magnetic tape. The strip can be located on the periphery of one or more bodies, if appropriate in a groove provided therein, and can be attached to the said bodies by suitable means, for example with the aid of integral hooks provided at the ends of the strip.
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