Crank drive for a photographic camera
    2.
    发明授权
    Crank drive for a photographic camera 失效
    曲柄驱动摄像机

    公开(公告)号:US4173903A

    公开(公告)日:1979-11-13

    申请号:US826404

    申请日:1977-08-22

    Abstract: The invention relates to a crank drive, particularly to a crank drive for photographic cameras having a crank including a crankpin, and a drawbar pivotable about the crankpin. The drawbar consists of first and second rods connected to one another, and disposed in respective substantially parallel planes, which rods are joined or connected by a hinge having a hinge axis substantially parallel to the crankpin axis.

    Abstract translation: 本发明涉及一种曲柄驱动器,特别涉及一种用于摄像机的曲柄驱动器,该曲柄驱动器具有包括曲柄销的曲柄以及可围绕曲柄销枢转的牵引杆。 牵引杆包括彼此连接的第一和第二杆,并且设置在相应的基本上平行的平面中,该杆通过具有基本上平行于曲柄销轴线的铰链轴线的铰链连接或连接。

    Double slide focal plane shutter
    3.
    发明授权
    Double slide focal plane shutter 失效
    双滑块焦平面快门

    公开(公告)号:US4005462A

    公开(公告)日:1977-01-25

    申请号:US637308

    申请日:1975-12-03

    Inventor: Friedrich Papke

    CPC classification number: G03B9/18

    Abstract: Each slide is comprised of an exposure slit defining lamella moved on parallel swinging arms in front of the image aperture, whereby the arms overlap each other in part, as well as the lamella to provide additionally shutter functions for covering portions of the aperture which are to be covered but are not covered by the lamella in any phase of movement or position of deployment.

    Abstract translation: 每个幻灯片由限定薄片的曝光狭缝组成,其在图像孔前面的平行摆动臂上移动,由此臂部分地彼此重叠,以及薄片以提供额外的快门功能,以覆盖孔的部分 被覆盖,但在运动或部署位置的任何阶段都不被薄片覆盖。

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