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1. 发明授权

US4175857A Photographic copying machine 失效
标题翻译：摄影复印机
公开(公告)号：US4175857A
公开(公告)日：1979-11-27
申请号：US870604
申请日：1978-01-18
申请人： Heinz Rapp , Ernst Biedermann , Dieter Wittenbrink
发明人： Heinz Rapp , Ernst Biedermann , Dieter Wittenbrink
IPC分类号： G03B27/60
CPC分类号： G03B27/60
摘要： Apparatus for transferring photosensitive sheets from the transporting plane into the copying plane of a photographic copying machine has a suction chamber with a perforated cover having a flat upper side which defines the copying plane. The interior of the suction chamber is subdivided into one or more centrally located primary sections which are in direct communication with the intake of a suction pump and two or more secondary sections which communicate with the primary section or sections by way of narrow passages defined by internal partitions of the suction chamber so that a sheet which is advanced in the transporting plane to a position of register with the cover is attracted first to that portion or those portions of the cover which overlie the primary section or sections and thereupon to those portions of the cover which overlie the secondary sections. The number of primary and secondary sections which communicate with the intake of the suction pump is reduced when the apparatus is used for transfer of smaller sheets. The number of perforations per unit area of that portion of the cover which overlies the primary section or sections is greater than the number of perforations per unit area of that portion of the cover which overlies the secondary sections, and the combined cross-sectional area of perforations in communication with the primary section or sections is greater than the combined cross-sectional area of passages between the primary and secondary sections.
摘要翻译：用于将感光片从传送平面传送到照相复印机的复印平面中的设备具有一吸气室，该抽吸室具有限定复制平面的平坦上侧的多孔盖。吸入室的内部被细分成一个或多个居中定位的主要部分，其与抽吸泵的入口直接连通，以及两个或更多个次级部分，其通过由内部限定的狭窄通道与主要部分连通使得在输送平面中前进到与盖对齐的位置的片材首先被吸引到覆盖在主要部分或部分上的那个部分或盖的那些部分或其上的那些部分覆盖在二级部分上。当将该装置用于较小的纸张的传送时，与抽吸泵的进气口连通的主部分和次部分的数量减少。覆盖在主要部分上的盖的该部分的每单位面积的穿孔数量大于覆盖在次级部分上的盖的该部分的每单位面积的穿孔数目，并且组合横截面积与主要部分或部分连通的穿孔大于主要部分和次要部分之间的通道的组合横截面面积。

2. 发明授权

US4240744A Photographic copying machine with interchangeable format masks 失效
标题翻译：摄影复印机具有可互换格式的面具
公开(公告)号：US4240744A
公开(公告)日：1980-12-23
申请号：US863867
申请日：1977-12-23
申请人： Heinz Rapp , Ernst Biedermann , Dieter Wittenbrink
发明人： Heinz Rapp , Ernst Biedermann , Dieter Wittenbrink
IPC分类号： G03B27/62 , G03G15/04 , G03G21/00 , G03B27/58
CPC分类号： G03B27/6271
摘要： A photographic copying machine wherein any one of a series of masks, each having a differently dimensioned light-transmitting opening, can be placed onto a locating plate which supports a battery of fixedly mounted or mobile magnetic actuators for discrete electric switching elements. Each mask carries a different array of soft magnets which displace or otherwise influence a group of actuators so that the thus influenced actuators open or close the associated switching elements which adjust the exposure controls and/or another system of the copying machine in dependency on the size and/or shape of the opening in the selected mask. The soft magnets on each mask influence a different group (e.g., a different number) of actuators each of which is an H-shaped permanent magnet.
摘要翻译：一种照相复印机，其中可以将具有不同尺寸的透光开口的一系列掩模中的任何一个放置在支撑用于离散电开关元件的固定安装的或移动的磁性致动器的电池的定位板上。每个掩模携带不同的软磁体阵列，其移动或以其他方式影响一组致动器，使得受影响的致动器打开或关闭相关联的开关元件，其根据尺寸来调节曝光控制和/或复印机的另一系统和/或所选掩模中的开口的形状。每个掩模上的软磁体影响不同的组（例如不同数量）的致动器，每个致动器都是H形永磁体。

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