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11. 发明授权

US3656674A Web tension isolator or amplifier for web handling apparatus 失效
标题翻译：用于WEB处理设备的WEB张力分离器或放大器
公开(公告)号：US3656674A
公开(公告)日：1972-04-18
申请号：US3656674D
申请日：1970-03-18
申请人： EASTMAN KODAK CO
发明人： MORSE JOHN E
IPC分类号： G03B1/54 , G03B21/43 , G11B15/43
CPC分类号： G11B15/43 , G03B1/54 , G03B21/43
摘要： A web tension isolator or amplifier includes a rotatable pulley engageable with a driver pulley in response to tension forces in a web that is wrapped on the driven pulley. The mechanism maintains the film tension ratio (i.e., the ratio of the tensions in the web portions on the two sides of the driven pulley) substantially constant regardless of the magnitude of the web tension. The mechanism automatically and quickly adjusts the web tension for any variations in the tensions of the web portions at either side of the driver pulley. The mechanism can be used (for example) in a motion picture projector between the film gate and a supply reel and/or a take-up reel.
摘要翻译：腹板张力隔离器或放大器包括可响应于被卷绕在从动滑轮上的腹板中的张力而与驾驶员滑轮接合的可旋转滑轮。该机构保持薄膜张力比（即，从动滑轮的两侧的腹板部分中的张力的比例）基本上恒定，而与卷材张力的大小无关。该机构可自动且快速地调整卷筒纸张力，以适应驱动滑轮两侧腹板部分的张力的任何变化。该机构可以用于（例如）在电影门和供带盘和/或卷取卷轴之间的电影放映机中。

12. 发明授权

US3589806A Control system for plural motion-picture projectors operating from a single film strip 失效
标题翻译：来自单片薄膜条的运动图像投影机的控制系统
公开(公告)号：US3589806A
公开(公告)日：1971-06-29
申请号：US3589806D
申请日：1969-09-17
申请人： BELL & HOWELL CO
发明人： RAK ARTHUR
IPC分类号： G03B1/54 , G03B21/00 , G03B31/02
CPC分类号： G03B31/02 , G03B1/54 , G03B21/003
摘要： A control system for a plurality of motion-picture projectors operating sequentially on a single strand of film. The system includes a mechanism for forming and monitoring a film loop of a predetermined length at each projection station. As the loop length increases and decreases by a predetermined amount, the system automatically compensates for such changes by interrupting power to one or more of the plurality of projector motors while the remainder of the system attempts to restore itself to normal operation. In the event of a failure of a particular projection station, means are provided for bypassing that station and for disabling portions of the control system to compensate for the missing projector.

13. 发明授权

US3584807A Takeup mechanism 失效
标题翻译：采购机制
公开(公告)号：US3584807A
公开(公告)日：1971-06-15
申请号：US3584807D
申请日：1969-04-24
申请人： AUTOSCOPE INC
发明人： SMITH TOM F
IPC分类号： G03B1/54 , G03B21/43
CPC分类号： G03B1/54 , G03B21/43
摘要： A takeup mechanism in the form of a sprocket wheel engaging a film which the sprocket wheel mounted on a spring-biased arm so that the arm will swing in response to increase and decrease in tension on the film. A takeup reel brake is actuated and released in response to pivotal movement of the spring-biased arm thereby applying and releasing the brake in response to tension on the film.

14. 发明授权

US3519213A Indicator assembly for convoluted band material in motion picture cameras or the like 失效
标题翻译：运动图像摄像机或类似物中的带状物料的指示器组件
公开(公告)号：US3519213A
公开(公告)日：1970-07-07
申请号：US3519213D
申请日：1968-04-18
申请人： AGFA GEVAERT AG
发明人： HOFMANN WILFRED , PFEIFER JOSEF
IPC分类号： G03B1/54 , G03B17/30 , G03B21/43 , B65H25/04 , G03B1/04 , G11B15/32
CPC分类号： G03B17/305 , G03B1/54 , G03B21/43

15. 发明授权

US4332339A Web-advancing apparatus 失效
标题翻译：网页推进装置
公开(公告)号：US4332339A
公开(公告)日：1982-06-01
申请号：US162035
申请日：1980-06-20
申请人： Heinz Luedemann , Klaus Schneider
发明人： Heinz Luedemann , Klaus Schneider
IPC分类号： G03B1/54 , B65H23/16 , B65H77/00
CPC分类号： B65H23/16
摘要： An apparatus for transporting webs of photographic material or the like has a web supply roll from which the web is pulled by a pull-off device. According to the invention a tilt arm is mounted intermediate the supply roll and the pull-off device and carries a roller at one end about which the web is drawn off, causing the arm to tilt. Tilting is resisted by a spring acting upon the other end of the arm. An arrangement is provided for varying the resisting force of the spring as a function of the tilted position of the arm.
摘要翻译：用于传送照相材料等的纤维网的装置具有幅材供应卷，纸幅从该纸幅供应辊通过拉脱装置拉动。根据本发明，倾斜臂安装在供应辊和牵引装置的中间，并在一端承载辊，纤维网围绕该辊被拉出，导致臂倾斜。倾斜受到作用在手臂另一端的弹簧的抵抗。提供了一种用于根据臂的倾斜位置来改变弹簧的抵抗力的装置。

16. 发明授权

US4326781A Film sag detecting device for sound cinecamera 失效
标题翻译：电影下放影片检测装置
公开(公告)号：US4326781A
公开(公告)日：1982-04-27
申请号：US889264
申请日：1978-03-23
申请人： Wataru Ogura
发明人： Wataru Ogura
IPC分类号： G03B1/54 , G03B1/56 , G03B31/00 , G03B31/02
CPC分类号： G03B1/54 , G03B31/02
摘要： This film sag detecting device for a sound cinecamera is provided with an opto-electronic coupler located along a film path which is formed between a means for intermittent feeding of a film for exposure and a means for continuous feeding of the same for recording sounds thereon. The opto-electronic coupler comprises a light emitting element and a light receiving element and it is placed to allow the film to interrupt a light path which bridges the two light elements exclusively when the film excessively sags, so as to detect any excessive sag of the film.
摘要翻译：这种用于声音摄影的胶片下垂检测装置设置有沿着胶片路径设置的光电耦合器，该光电耦合器形成在用于间歇地馈送用于曝光的胶片的装置和用于在其上记录声音的连续馈送装置之间。光电耦合器包括发光元件和光接收元件，并且其被放置成允许胶片在胶片过度下垂时中断仅两个光元件桥接的光路，以便检测到任何过度的下垂电影。

17. 发明授权

US4169667A Film buffer for motion picture projectors 失效
标题翻译：电影放映机胶片缓冲
公开(公告)号：US4169667A
公开(公告)日：1979-10-02
申请号：US780536
申请日：1977-03-23
申请人： Donald I. Loofbourow , Robert E. Lach
发明人： Donald I. Loofbourow , Robert E. Lach
IPC分类号： G03B21/50 , G03B1/54 , G03B1/56
CPC分类号： G03B1/54
摘要： A film buffer for motion picture projectors is provided to permit the smooth advancement of the film through a projection gate, and to serve as a shock absorber to insure even projection. The buffer comprises a pair of rollers in fixed relation to each other juxtaposed to form a loop in the film in its path of travel, from a film supply reel to a film transport mechanism for incrementally advancing each frame of the film past the projection gate, a bracket for holding said rollers pivotally mounted on the face of the projector at a mid-point between the two rollers to permit swinging movement to increase or decrease the film loop size depending upon the tension of the film, a counterweight fixedly connected to the bracket to pivotally bias the same into a position to increase the film loop size, and a torsion spring positioned beneath the counterweight to engage and cushion the same as it moves toward a rest position. When the tension of the film varies only as a result of the intermittent operation of the film transport mechanism, the film loop tightens and loosens around the rollers and thereby employs the inherent elasticity of the film to urge the film from the supply reel in a smooth and uninterrupted manner. If the tension of the film increases due to a jam in the supply reel or the like, the inertia of the counterweight will be overcome allowing the bracket to swing into a position to reduce the loop size.
摘要翻译：提供用于电影放映机的胶片缓冲器，以允许胶片通过投影门的平滑前进，并且用作减震器以确保均匀的投影。缓冲器包括一对彼此固定的辊子，它们在薄膜中在其行进路径中从薄膜供应卷轴到薄膜传送机构并置，以在膜中形成环，用于逐渐推进胶片的每个框架经过投影门，支架，用于将所述滚子保持在投影机的表面上，位于两个辊之间的中点，以允许摆动运动，以根据胶片的张力来增加或减少胶卷尺寸，固定连接到支架将其枢转地偏置到一个位置以增加胶片环尺寸，以及一个位于配重下方的扭力弹簧，使其在静止位置移动时与其接合并缓冲。当膜的张力仅由于胶片传送机构的间歇操作而变化时，胶片环就会使辊子周围的张紧和松动，从而采用胶片的固有弹性，从而使胶片从供带盘上顺利地推出不间断的方式。如果由于供带盘等中的卡纸而导致胶片的张力增大，则克服配重的惯性使支架摆动到减小环形尺寸的位置。

18. 发明授权

US4089490A Film transport mechanism 失效
标题翻译：电影传输机制
公开(公告)号：US4089490A
公开(公告)日：1978-05-16
申请号：US592786
申请日：1975-07-02
申请人： Roberto Quintanar , Sergio Quintanar , Alexandro Quintanar , Delbert K. Matthews
发明人： Roberto Quintanar , Sergio Quintanar , Alexandro Quintanar , Delbert K. Matthews
IPC分类号： G03B21/43 , G03B1/04 , G03B1/54
CPC分类号： G03B21/43
摘要： A film transport mechanism for use in conjunction with a motion picture projector is a free standing unit carrying supply and takeup reels and associated drive motors. The arbors for the supply and takeup reels are generally parallel, and positioned therebetween is a free running sprocket assembly. Film direction rollers cause film from the supply reel to run over one side of the sprocket and additional rollers to direct the return film from a projector over the opposite side of the sprocket whereby the rate of film advance to the projector and return are equal. The transport mechanism transfers a major portion of the torque required to pull film off the supply reel from the projector to the transport thereby significantly reducing the tension on the film going to and from the projector. The entire assembly includes a support structure having a vertical column supporting the motors, arbors and the control electronics, and constitutes a conduit for virtually all electrical interconnections. Control circuitry controls the takeup motor as a function of film movement between the sprocket and the takeup reel and energizes both rewind and takeup motors during the rewind cycle. The speed on rewind is controlled by the control circuitry by controlling the current to the normal run takeup motor. Failsafe circuitry prevents unintended shutoff during restart situations, but turns off the transport mechanism after a few seconds in case of a film break or runout.
摘要翻译：与电影投影仪结合使用的胶片传送机构是承载供纸卷取卷轴和相关联的驱动马达的独立式单元。用于供应和收紧卷轴的轴心大致平行，并且位于它们之间是自由行进的链轮组件。电影方向辊使得供应卷轴的胶片从链轮的一侧延伸出来，另外的辊子将返回胶片从投影机引导到链轮的相对侧，由此胶卷进入投影机并返回的速度相等。传送机构传送将胶片从投影机拉出的所需扭矩的大部分转移到传送装置上，从而显着地减少了去往和来自投影仪的胶片上的张力。整个组件包括支撑结构，其具有支撑电动机，轴和控制电子装置的垂直列，并且构成用于几乎所有电互连的导管。控制电路控制卷取电机作为在链轮和卷取卷轴之间的胶片移动的功能，并且在倒带循环期间对倒带和卷绕电机进行激励。控制电路通过控制正常运行电机的电流来控制倒带速度。故障安全电路可以防止在重启情况下无意中关闭，但在断电或跳动的情况下几秒钟后，请关闭传输机构。

19. 发明授权

US3938753A Film tension maintenance means for use in roll-film camera 失效
标题翻译：薄膜张力维护手段用于卷膜相机
公开(公告)号：US3938753A
公开(公告)日：1976-02-17
申请号：US497448
申请日：1974-08-14
申请人： Shigeru Oshima
发明人： Shigeru Oshima
IPC分类号： G03B1/54 , G03B17/26 , G03B17/28 , G03B19/04 , B65H77/00
CPC分类号： G03B1/54 , G03B19/04
摘要： A film tension maintenance means for use in a roll-film camera comprising a simply mounted, expandable clasp element, which exerts evenly distributed force on opposite sides of a take-up spool and maintains the take-up spool in a vertical alignment, and steadily expands as film is wound onto the take-up spool, while maintaining pressure countering any tendency of the wound film to uncoil, thereby to ensure unhindered film wind-up and accurate advance of successive film frames to an exposure position.
摘要翻译：一种胶片张力维持装置，用于卷筒式照相机，其包括简单安装的可膨胀的钩形元件，其在卷取卷轴的相对侧上施加均匀分布的力并将卷取卷轴保持垂直对准，并且稳定地随着胶片卷绕在卷取卷轴上而膨胀，同时保持压力以抵抗卷绕膜脱卷的任何趋势，从而确保不受阻碍的胶卷卷绕并将连续胶片胶片精确地提前到曝光位置。

20. 发明授权

US3848977A Multipurpose, audio-visual cassette system 失效
标题翻译：多媒体，音视频系统
公开(公告)号：US3848977A
公开(公告)日：1974-11-19
申请号：US37457873
申请日：1973-06-28
申请人： POLAROID CORP
发明人： SCHOLZ D
IPC分类号： G03B19/18 , G03B1/54 , G03B19/16 , G03B31/00 , G03B31/02 , G03B31/06
CPC分类号： G03B31/02 , G03B19/16
摘要： A sound motion-picture system employing a film handling cassette within which the film is retained throughout all photographic and audio operations. The film handling cassette includes both an audio station and an exposure-projection station, and the camera and viewer apparatus includes a pair of drive arrangements for progressively advancing incremental sections of such film across the exposure-projection station and for substantially uniformly advancing the film strip through the audio station. To isolate these different film motions, the drive arrangements cooperate with the cassette to provide a free loop of film extending exteriorly of the cassette. A sensing element monitors the loop of film and adjusts one of the drives so as to retain the loop within predetermined limits. In the camera, the audio drive is coupled to the start switch so as to displace the audio drive into a standby position when the camera is not being operated. Additionally, means are provided for eliminating the loop so as to facilitate removal of the cassette from the appparatus.
摘要翻译：一种使用胶片处理盒的声音运动图像系统，其中胶片在整个照相和音频操作中被保留。胶片处理盒包括音频站和曝光投影站，并且照相机和观看装置包括一对驱动装置，用于逐渐地推进这种胶片的增量部分横过曝光投影台并且基本均匀地推进胶片条通过音频站。为了隔离这些不同的胶片运动，驱动装置与盒一起配合以提供在盒子外部延伸的膜的自由环。感测元件监测胶片的环路并调节其中一个驱动器，以便将环保持在预定的限度内。在相机中，音频驱动器耦合到启动开关，以便当相机未被操作时将音频驱动器移位到待机位置。此外，提供了用于消除环路的装置，以便于从装置中移除盒子。

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