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    • 85. 发明授权
    • Continuous loop cartridge
    • 连续环形盒
    • US3637151A
    • 1972-01-25
    • US3637151D
    • 1970-12-19
    • FRANK J SKWAREK
    • SKWAREK FRANK JERICKSON JOHN E
    • G03B21/54B65H75/02
    • G03B21/54
    • A continuous tape loop is coiled in a cartridge on a rotatable turntable having a hub made of a V-shaped spring member anchored at its midportion to define semicircular yieldable arms with a gap between their free ends. The spring member also includes pairs of radially directed fingers, each pair supporting a roller to reduce friction between the hub and coil of tape. Tape is unwound from the inner coil convolution through the hub''s gap, past suitable guides and a transducer head to return as the outer coil convolution. The yieldability of the hub minimizes friction between the coil turns. One end of a spring-biased brake lever normally engages one of a series of small holes provided on the turntable to lock the turntable against undesired rotation except when the tape is being used at which time tension in the tape acts on the opposite end of the lever to pivot the lever clear of the turntable.
    • 一个连续的磁带环卷绕在可旋转的转盘上的盒中,该旋转转盘具有由其中间部分锚定的V形弹簧构件制成的轮毂,以限定半自由端之间具有间隙的半圆形可屈服臂。 弹簧构件还包括成对的径向指向的指状物,每对支撑辊子以减小轮毂和线圈之间的摩擦。 磁带从通过轮毂间隙的内圈卷曲展开,通过适当的导轨和换能器头作为外圈缠绕而返回。 毂的屈服性最小化了线圈之间的摩擦。 弹簧偏置的制动杆的一端通常接合设置在转台上的一系列小孔中的一个,以锁定转台以防止不期望的旋转,除了当使用磁带时,磁带中的张力作用在磁带的相对端 杠杆将杠杆摆脱转盘。
    • 86. 发明授权
    • Transparency viewing device
    • 透明度检测装置
    • US3611600A
    • 1971-10-12
    • US3611600D
    • 1969-05-28
    • FRANCIS W SEEBALD
    • SEEBALD FRANCIS W
    • G03B21/54G09F13/10
    • G03B21/54
    • A DEVICE FOR VIEWING TRANSPARENT PHOTOGRAPHIC SLIDES INCLUDING A BASE ADAPTED TO BE MOUNTED ON A TABLE OR THE LIKE. A TRANSPARENT SLIDE SUPPORT RACK IS MOUNTED ON THE BASE FOR SUPPORTING A PLURALITY OF SLIDE MEMBERS THEREON, AND IS DISPOSED IN OVERLYING RELATION WITH RESPECT TO A LIGHT SOURCE TO ILLUMINATE THE RESPECTIVE SLIDES. A TURRET-LIKE SLIDE STORAGE TRAY IS MOUNTED FOR ROTATION ON THE BASE ENABLING STORAGE OF A LARGE NUMBER OF SLIDES ON THE DEVICE ITSELF. A PLURALITY OF SLIDE STORAGE CARTRIDGES ARE SUPPORTED ADJACENT THE PERIPHERY OF THE TRAY TO ENABLE THE SAME TO BE MOVED TO A READILY ACCESSIBLE POSITION FOR SELECTION OF A RESPECTIVE SLIDE OR GROUP OF SLIDES. THE SLIDE SUPPORT RACK INCLUDES A PLURALITY OF SLIDE RECEIVING RECEPTACLES ARRANGED TO ENABLE THE PLACEMENT OF A LARGE NUMBER OF SLIDES ON THE SUPPORT RACK AT ONE TIME AND FOR FACILE STACKING OF THE SLIDES FOR STORAGE IN THE SLIDE STORAGE CARTRIDGES AFTER USE.