Optical rollfiche reader
    14.
    发明授权
    Optical rollfiche reader 失效
    光学卷轴阅读器

    公开(公告)号:US4437738A

    公开(公告)日:1984-03-20

    申请号:US254748

    申请日:1981-04-16

    IPC分类号: G03B21/11 G03B23/12 G03B21/22

    CPC分类号: G03B21/111 G03B21/115

    摘要: An optical film reader for projecting and enlarging micro copy information recorded in rollfiche format on rolls of photographic film or the like which provides a film transport mechanism enabling rapid manual scanning of the enclosed rollfiche strip in both directions, with instantaneous reversal of the scanning direction without backlash in the film drive. A low glare, high contrast viewing screen is mounted at 45.degree. to the vertical and placed low at the front of the unit perpendicular to the viewer's line of sight. Movable projection optics are provided for scanning of rollfiche microcopy which is wider than that projectable on a fixed sized screen at one given time at a given magnification ratio; the movable projection optics allow projection of the micro copy data or eye-readable index area of the rollfiche by means of a single scanning lever.

    摘要翻译: 一种用于投影和放大以卷筒纸格式记录的照相胶卷等的微复制信息的光学读取器,其提供了一种胶片传送机构,其能够在两个方向上快速手动扫描封闭的卷筒纸条,同时扫描方向瞬时反转而没有 电影中的反弹。 低眩光,高对比度观察屏幕垂直安装在45度,并垂直于观察者的视线放置在单元的前部。 提供了可移动投影光学元件,用于扫描在给定时间以给定的放大倍率比在固定尺寸的屏幕上可投射的卷筒纸显微镜; 可移动的投影光学元件允许借助于单个扫描杆投影卷筒纸的微复制数据或眼睛可读的索引区域。

    Pressure intensifying device
    15.
    发明授权
    Pressure intensifying device 失效
    增压装置

    公开(公告)号:US4395027A

    公开(公告)日:1983-07-26

    申请号:US187588

    申请日:1980-09-15

    IPC分类号: F15B11/032 B23Q3/08

    摘要: A two step pressure intensifier adapted for use as a clamp or a via including a housing cylinder which sealingly houses a telescoping cylinder. The telescoping cylinder is extended rapidly outward by application of low pressure to hydraulic fluid within the telescoping cylinder. Upon meeting resistance, the extension speed of the telescoping cylinder is slowed down and high presssure is applied.The use of a small diameter force input rod or piston is encompassed by a close fitting input portion of the telescoping piston so that the two pistons move together during a portion of both their force and retraction strokes.

    摘要翻译: 适于用作夹紧器或通孔的两级增压器,其包括密封地容纳伸缩筒的容纳筒。 伸缩缸通过对伸缩缸内的液压油施加低压而迅速向外延伸。 遇到阻力时,伸缩缸的延伸速度变慢,施加高压力。 小直径力输入杆或活塞的使用由伸缩活塞的紧密配合的输入部分包围,使得两个活塞在它们的力和回缩冲程的一部分期间一起移动。