Photographic printing apparatus
    1.
    发明授权

    公开(公告)号:US3627411A

    公开(公告)日:1971-12-14

    申请号:US3627411D

    申请日:1969-01-23

    Inventor: NAGEL ERICH

    CPC classification number: G03B27/6285

    Abstract: A photographic printing apparatus wherein the light-transmitting window at the printing station is defined by several masks which are movable with reference to each other to adjust the size of the window in dependency on the format of frames in the roll film which is being copied. The movements of masks are synchronized and one of the masks adjusts the reflector of a previewing device which permits visual inspection of one or more frames immediately ahead of the printing station.

    Apparatus for detecting and guiding the leaders of photographic roll films
    2.
    发明授权
    Apparatus for detecting and guiding the leaders of photographic roll films 失效
    用于检测和指导照相胶片胶片的前导件的装置

    公开(公告)号:US3883086A

    公开(公告)日:1975-05-13

    申请号:US46218674

    申请日:1974-04-18

    CPC classification number: G03D13/005 G03B21/43

    Abstract: Apparatus for detecting intercepting and guiding the leader of photographic film which is convoluted on a spool within a convoluted backing strip whose front portion extends beyond the leader of the film has a bearing which rotatably supports a spool and a drive which rotates the spool in a direction to pay out the film and the backing strip. A deflector is biased against the outermost convolution of the backing strip on the rotating spool to deflect the front portion of the backing strip into a first path while simultaneously preventing entry of the leader of film into a second path wherein the leader is to advance toward a splicing station to be joined with the trailing end of a preceding film. A photoelectric detector scans the path for the backing strip and produces a signal in response to detection of the front portion whereby such signal causes a rotary electromagnet to move the deflector out of register with the inlet of the path for the leader so that the leader can enter such path in response to further rotation of the spool. Prior to rotation in a direction to pay out the film and the backing strip, the spool is rotated in the opposite direction and is arrested by a tracking device having a nozzle which attracts the front portion of the backing strip in such angular position of the spool that the front portion of the backing strip is located between the points of engagement of the backing strip with the drive means and with the deflector. Such orienting of the spool can be carried out prior to introduction into the bearing.

    Abstract translation: 用于检测截取和引导照相胶片的引导件的装置,该照相胶片的前端卷绕在卷轴背衬条中的卷轴上,卷曲背衬条的前部延伸超出胶片的引导部分,其具有可旋转地支撑卷轴的驱动器和使卷轴沿着方向旋转的驱动器 支付电影和背带。 偏转器被偏压抵靠旋转的卷轴上的背衬条的最外圈,以将背衬带的前部部分偏转成第一路径,同时防止胶片的引导件进入第二路径,其中,引导件朝向 拼接台与前一片的后端连接。 光电检测器扫描背衬条的路径并响应于前部的检测而产生信号,由此这种信号使旋转电磁体将导流器移动到与引导件的路径的入口对齐,使得引导件可以 响应于线轴的进一步旋转而进入该路径。 在沿着支付薄膜和背衬条的方向旋转之前,线轴沿相反方向旋转并且由具有喷嘴的跟踪装置阻止,该喷嘴在卷轴的角位置中吸引背衬条的前部 背衬条的前部位于背衬条与驱动装置的接合点与偏转器之间。 阀芯的定向可以在引入轴承之前进行。

    Photographic copying machine
    3.
    发明授权
    Photographic copying machine 失效
    摄影复印机

    公开(公告)号:US3873012A

    公开(公告)日:1975-03-25

    申请号:US39724773

    申请日:1973-09-14

    CPC classification number: G03B27/587

    Abstract: A photographic copying machine wherein the copying station is located between two feeding stations for a web of photographic material. The web is guided by fixedly mounted and pivotable guide members which define at each feeding station an opening through which loop-shaped intermediate portions of the web can enter a basket-shaped magazine. Two intermittently driven wheels at the first feeding station draw the web from a supply cassette and feed it directly into the adjacent magazine from which the web is withdrawn by intermittently driven wheels at the second feeding station whereby the web enters the other magazine from which it is withdrawn in response to rotation of the takeup reel in a second cassette. Pivotable flaps can seal the magazines from the path for the web during threading of the leader of a fresh web into the copying machine, and forked intercepting devices are provided adjacent to the magazines to intercept folded-over portions of the web.

    Abstract translation: 一种照相复印机,其中复印站位于用于照相材料幅材的两个供给站之间。 纸幅由固定安装和可枢转的引导构件引导,引导构件在每个进给站处限定了一个开口,通过该开口,卷筒纸的环形中间部分可以通过该开口进入篮形盒。 在第一馈送站的两个间歇驱动的轮子从供应盒中抽出纸幅并将其直接送入相邻的盒中,在第二馈送站中间隔地驱动纸卷从纸幅中取出纸幅,由此纸幅进入另一盒 响应于收起卷轴在第二盒中的旋转而撤回。 透视襟翼可以在将新鲜卷筒的引导件穿入复印机的过程中将纸盒从用于卷筒纸的路径中密封,并且在杂志附近提供叉形截取装置以拦截卷筒纸的折叠部分。

    Apparatus for stepwise transport of webs in photographic copying machines or the like
    4.
    发明授权
    Apparatus for stepwise transport of webs in photographic copying machines or the like 失效
    摄影复印机中WEBS的步进运输装置

    公开(公告)号:US3904145A

    公开(公告)日:1975-09-09

    申请号:US36408073

    申请日:1973-05-25

    CPC classification number: G03B27/587

    Abstract: Apparatus for transporting webs of photosensitive material in a copying machine has a driven takeup reel which collects exposed material and intermittently driven advancing rolls which withdraw the material from a supply reel in stepwise fashion. A mechanical or electromagnetic friction brake is interposed between the advancing rolls and the takeup reel to abruptly interrupt the transport of material toward the takeup reel, either in response to completed transport of the material by a step or during transport of material by the advancing rolls. The mechanical brake employs an idler roll or a tensioning roll which changes its position in response to changing tension of the material. The electromagnetic brake has an armature which biases the material against a stationary back support in response to energization of the electromagnet which latter is energized when the motor for the takeup reel is idle of vice versa.

    Photographic printing apparatus
    5.
    发明授权
    Photographic printing apparatus 失效
    摄影印刷设备

    公开(公告)号:US3674365A

    公开(公告)日:1972-07-04

    申请号:US3674365D

    申请日:1970-09-28

    CPC classification number: G03B27/6285

    Abstract: EACH FILM STRIP HAS MARGINAL NOTCHES THAT INDICATE FORMAT LENGTH OF THE FRAMES OF A FILM STRIP. THESE NOTCHES ARE SENSED BY FEELERS THAT, IN ONE EMBODIMENT, ACTUATE SWITCHES THE CONTROL OPERATION OF A MOTOR FOR POSITIONING THE MASKING ELEMENTS FOR PRINTING. IN ANOTHER EMBODIMENT, A DIGITAL CIRCUIT IN CONJUNCTION WITH THE FEELERS AND

    A PULSE GENERATOR AUTOMATICALLY DETERMINE THE AVERAGE FORMAT LENGTH WITHIN A FILM STRIP AND PROVIDES A SIGNAL FOR OPERATING THE MOTOR TO POSITION THE MASKING ELEMENTS.

    Device for braking of shutter blades or the like
    6.
    发明授权
    Device for braking of shutter blades or the like 失效
    用于制作切片刀片或类似物的装置

    公开(公告)号:US3646870A

    公开(公告)日:1972-03-07

    申请号:US3646870D

    申请日:1970-05-13

    CPC classification number: G03B9/10

    Abstract: A braking device for shutter blades or the like which comprises a pivotable actuating member normally extending into the path of movement of the blade and serving to displace a braking member which is thereby urged against the blade, preferably in a direction at right angles to the direction of movement of the blade, to produce a controlled braking action. The braking member is integral with or is coupled to the actuating member by a torsion spring or the like. Elastic cushions are provided on the actuating and braking members in such positions that the cushion of the actuating member is struck by the moving blade and the cushion of the braking member strikes against the blade in response to resulting displacement of the actuating member.

    Abstract translation: 用于快门叶片等的制动装置,其包括通常延伸到叶片的运动路径中的可枢转致动构件,并且用于移动制动构件,由此推动制动构件,优选地在与方向成直角的方向上抵靠叶片 的叶片的运动,以产生可控制动作用。 制动构件通过扭转弹簧等与致动构件成一体或联接到致动构件。 在致动构件和制动构件上设置弹性衬垫,使得致动构件的衬垫被动叶片撞击,并且制动构件的衬垫响应于致动构件的移位而撞击刀片。

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