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    • 1. 发明授权
    • Cassette for winding band-like photographic material
    • 用于卷绕带状照相材料的纸盒
    • US4441667A
    • 1984-04-10
    • US329564
    • 1981-12-10
    • Siegfried BartelWolfgang ErmerBernd Payrhammer
    • Siegfried BartelWolfgang ErmerBernd Payrhammer
    • G03B27/58G03B1/04G03B23/02G11B15/04
    • G03B27/588
    • A cassette for winding a band-like photographic material has housing with a slot for introducing the material, a driven winding core having an endless band tensioned by a plurality of rollers and arranged to place the front of the material onto the winding core, and two lever arms pivotable about pivot axes which are parallel to the winding core axis, carrying at their ends guiding rollers and coupled with one another via the endless band, wherein one of the lever arms is connected with a spring element so that the lever arms in an initial condition assume a first position in which said endless band widely embraces the winding spool, and during further winding upon overcoming a dead point of the spring element the lever arms assume a second position in which the endless band is brought out of the region of a greatest possible spool.
    • 用于卷绕带状照相材料的盒具有用于引入材料的槽的壳体,具有由多个辊张紧的环形带的从动卷芯,并且布置成将材料的前部放置在卷芯上,并且两个 杠杆臂围绕平行于卷绕芯轴线的枢转轴线枢转,在其端部处承载引导辊并经由环形带彼此联接,其中一个杆臂与弹簧元件连接,使得杠杆臂 初始状态采取第一位置,其中所述环形带广泛地包围卷绕卷轴,并且在进一步卷绕期间克服弹簧元件的死点时,杠杆臂呈现第二位置,在该第二位置中,环形带被带出 最大的线轴
    • 3. 发明授权
    • Apparatus for influencing the color of copying light in photographic
copying machines or the like
    • 用于影印复印机等中复制光的颜色的装置
    • US4444489A
    • 1984-04-24
    • US417636
    • 1982-09-13
    • Siegfried BartelErnst BiedermannWolfgang ErmerErich Nagel
    • Siegfried BartelErnst BiedermannWolfgang ErmerErich Nagel
    • G03B27/54G03B27/72G03B27/76
    • G03B27/547
    • A photographic copying machine wherein each of the three color filters comprises several triangular sectors which are pivotable about parallel axes into and from the path of copying light between first positions outside of the path, second positions of full overlap with the path and a finite or infinite number of intermediate positions. The pulleys for the sectors of each filter are rotatable by a discrete endless cord or cable which is further trained over a wheel receiving torque from a crank drive designed to move the sectors into the path of the light beam through progressively greater angles during movement from the second toward the first positions and through progressively smaller angles during movement from the first to the second positions under the action of a reversible stepping motor so that the crank drive can compensate for the lack of linearity between the filtering action of the sectors and the extent to which they project into the path of copying light. A device is provided to limit the extent of movement of sectors from the first toward the second positions so as to ensure that the movement of the sectors is terminated when the respective filter extends across a selected portion of the path for the light beam. A step-down gearing is interposed between the stepping motor and the crank drive.
    • 一种照相复印机,其中三个滤色器中的每一个包括几个三角形扇区,该三个三角形扇区可围绕平行轴枢转进入和离开路径之间的第一位置之间的复制光路径,与路径完全重叠的第二位置和有限或无限的 中间职位数。 每个过滤器的扇区的滑轮可以通过离散的环形绳索或电缆旋转,该绳索或电缆被进一步训练在来自曲柄驱动器的车轮接收扭矩上,该曲柄驱动器被设计成在从所述曲柄驱动器的运动期间逐渐更大的角度移动到光束的路径中 在可逆步进电动机的作用下从第一位置移动到第二位置时逐渐变小的角度,使得曲柄驱动器可以补偿扇区的过滤动作之间的线性不足, 他们投入到复制光线的路上。 提供了一种装置,用于限制扇区从第一位置到第二位置的移动范围,以便当各个滤波器延伸穿过用于光束的路径的选定部分时,确保扇区的移动终止。 在步进电机和曲柄驱动器之间插入降压齿轮。