公开(公告)号：US4625253A

公开(公告)日：1986-11-25

申请号：US649725

申请日：1984-09-12

Applicant: Kenji Kawakami ,  Norikazu Horikawa ,  Yoshinori Yamamoto

Inventor： Kenji Kawakami ,  Norikazu Horikawa ,  Yoshinori Yamamoto

IPC: G11B23/087 ,  G11B23/08

CPC classification number: G11B23/087

Abstract: A magnetic tape cassette for use in a magnetic recording/reproducing apparatus has a sliding plate provided on a lower surface to selectively cover and expose insertion apertures that open into the interior of the cassette. A front lid is provided which may be pivoted to either expose or cover a front opening in the cassette through which tape may be withdrawn for a recording/reproducing operation. When the front lid is in its closed position and the sliding plate covers the insertion apertures, the front lid is locked in its closed position. The magnetic tape cassette is thereby closed to prevent dust, oil and other contaminants from damaging the magnetic tape within.

Abstract translation: 用于磁记录/再现装置的磁带盒具有设置在下表面上的滑板，以选择性地覆盖和暴露通向盒内部的插入孔。 提供前盖，其可以枢转以暴露或覆盖盒中的前开口，磁带可以通过该前开口取出用于记录/再现操作。 当前盖处于其关闭位置并且滑板覆盖插入孔时，前盖被锁定在其关闭位置。 因此，磁带盒被关闭以防止灰尘，油和其它污染物损坏磁带。

公开(公告)号：US4074274A

公开(公告)日：1978-02-14

申请号：US707819

申请日：1976-07-22

Applicant: Hisaya Fujita ,  Nobuo Kaieda ,  Setsuo Sato ,  Kenji Kawakami

Inventor： Hisaya Fujita ,  Nobuo Kaieda ,  Setsuo Sato ,  Kenji Kawakami

IPC: G01D9/32 ,  G01D9/04 ,  G01R13/04 ,  G08C19/30 ,  G01D9/00 ,  H01H19/58

CPC classification number: G01D9/04 ,  G01R13/04

Abstract: A multipoint recorder of the type used to monitor a number of measuring instruments and including a mechanism having a group of contacts for sequentially selecting signals from a number of measuring points, a self-balancing circuit having a balancing motor for intermittently measuring each of said signals, and an indicating and recording mechanism operated in synchronism with said selection mechanism for indicating and recording, e.g., on a strip chart, the group of measurements supplied by said self-balancing circuit. The multipoint recorder is characterized by a group of auxiliary contacts in said selection mechanism interspersed with the group of measuring point selection contacts, said auxiliary contacts being switched with a given delay behind switching of the measuring point selection contacts so that the auxiliary contacts are sequentially closed as the selection mechanism switches between measuring point selection contacts. In response to the switching of said auxiliary contacts, means are provided for locking said balancing motor or performing alarm operations or other functions while the selection mechanism switches from one measuring point to another.