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    • 83. 发明授权
    • Portable microfilm holder
    • 便携式微缩胶片支架
    • US3881597A
    • 1975-05-06
    • US38659573
    • 1973-08-08
    • DAHL ERNEST A JR
    • DAHL JR ERNEST A
    • B42F17/02G03B21/11G03B21/54B65D5/44G09F7/10
    • G03B21/54B42F17/02G03B21/11
    • The present invention relates generally to improvements in holders for microfilms and the like and more particularly to novel, readily portable holders equipped with magnetic file cards and magnets to effect fanning of said cards. The portable file or holder disclosed herein includes an elongate base section, laterally spaced file card supporting rods adjacently traversing said base section, and a plurality of generally upright file cards traversed and supported by said rods. The cards are equipped with magnetic means located along the lower half of opposite upright margins thereof. End wall sections extend upwardly from opposite extremities of the elongate base section and support magnets in the vicinity of the magnetic means carried by the cards. Closure panels extend upwardly from the vicinity of the opposite elongate margins of the base section and may be laterally shifted to facilitate positioning the cards in fanned relation or in compact juxtaposition.
    • 本发明总体上涉及对微缩胶片等的保持器的改进,更具体地说,涉及具有磁性文件卡和磁体的新型易于携带的保持架,以实现所述卡的扇形化。 本文公开的便携式文件夹或保持架包括细长的基部,横向间隔开的文件卡支撑杆,相邻地穿过所述基部,以及由所述杆穿过并支撑的多个大致直立的文件卡。 这些卡装有沿着其相对的直立边缘的下半部分的磁性装置。 端壁部分从细长基部的相对末端向上延伸,并在由卡承载的磁性装置附近支撑磁体。 封闭面板从基部的相对的细长边缘的附近向上延伸并且可以横向移位以便于将卡定位成扇形关系或以紧凑的并置。