专利快速检索-快速检索全球专利，免费商用专利数据库-IPRDB

1. 发明授权

US4154528A Photographic film printer 失效
标题翻译：摄影胶片打印机
公开(公告)号：US4154528A
公开(公告)日：1979-05-15
申请号：US916622
申请日：1978-06-19
申请人： Charles J. Watson , Walter Hrastnik , John W. Lang, Jr.
发明人： Charles J. Watson , Walter Hrastnik , John W. Lang, Jr.
IPC分类号： G03B27/46 , G03B27/08 , G03B27/10
CPC分类号： G03B27/10 , G03B27/08
摘要： A modular photographic film printer utilizes a direct current servo controlled main drive motor and belt drive to move a master film and raw film stock across printing heads without the use of intermediate sprockets. Film tension is controlled by tension control motors connected to the pay out and take up reels of the printer. The unit is modular in construction, and circuitry is provided for monitoring critical functions of the printer in order to locate malfunctions. Fiber optics are utilized in the sound track printing head to provide cool operation.
摘要翻译：模块化摄影胶片打印机利用直流伺服控制的主驱动电机和皮带驱动器，在不使用中间链轮的情况下将主胶片和原始胶片原稿移动到打印头上。胶片张力由连接到打印机的卷取机的张力控制电机控制。该单元是模块化的结构，并提供电路用于监视打印机的关键功能，以定位故障。在光轨打印头中使用光纤来提供冷却操作。

2. 发明授权

US4099869A Printing head assembly 失效
标题翻译：打印头组件
公开(公告)号：US4099869A
公开(公告)日：1978-07-11
申请号：US750084
申请日：1976-12-13
申请人： John W. Lang, Jr.
发明人： John W. Lang, Jr.
IPC分类号： G03B27/18 , G03B27/10
CPC分类号： G03B27/18
摘要： A printing head assembly for exposing raw stock film with a preprint film in a contact film printer including a dual roller gate assembly. The dual roller gate assembly includes a pair of rollers mounted on a roller frame for engaging the preprint film and raw stock film on opposite sides of the printing aperture for wrapping both the preprint and raw stock film about a segment of the printing sprocket of substantially greater length than the printing aperture. An adjustable biasing spring permits regulation of the tension applied through the rollers to the film runs. The dual roller gate assembly includes a selectively operable retraction device to withdraw the rollers away from the printing sprocket for loading and unloading the film printer. In an alternate embodiment, the dual roller gate assembly is pivotally mounted by an offset shaft which permits pivotal movement of the dual roller gate assembly to provide clearance for loading the film printer.
摘要翻译：一种用于在包括双辊门组件的接触式薄膜打印机中用预印薄膜曝光原料薄膜的打印头组件。双辊门组件包括安装在辊架上的一对辊，用于接合预印膜和印刷孔的相对侧上的原料膜，用于将预印纸和原始胶卷围绕打印链轮的一段大致更大长度大于打印孔径。可调节的偏置弹簧允许调节通过辊施加到膜运行的张力。双辊门组件包括有选择地可操作的收回装置，用于将辊离开打印链轮以将胶片打印机装载和卸载。在替代实施例中，双辊门组件由偏移轴可枢转地安装，该偏移轴允许双辊门组件的枢转运动以提供用于装载胶片打印机的间隙。

你已经成功收藏专利！

检索式保存成功!

IPRDB

热门服务

关于我们

友情链接

联系方式