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公开(公告)号：US3794231A
公开(公告)日：1974-02-26
申请号：US3794231D
申请日：1973-04-05
申请人： EASTMAN KODAK CO
发明人： MARTIN W
摘要： A web handling apparatus is adapted to move web material in forward and reverse directions and under varying degrees of web tension. In such apparatus, a web friction drive is actuatable to assume an operative mode for feeding web material, therefrom, in the forward direction toward a web drawing mechanism and at a rate in excess of that at which the drawing mechanism can draw the same material forward. The web friction drive normally assumes an idle mode in which the friction drive does not exert a web feeding affect on web material moving in the forward or reverse directions. A web tension sensing mechanism connects with the web friction drive, for actuating the friction drive to assume the operative mode in response to sensing a given tension in web material which is moving in the forward direction from the friction drive to the web drawing mechanism, and allows the friction drive to assume the idle mode after tension in the same material has eased or slackened. However, the web tension sensing mechanism and web friction drive remain disconnected as web material is moved in the reverse direction. In this way, the web tension sensing mechanism cannot actuate the web friction drive to assume the idle mode during movement of web material in the reverse direction.
摘要翻译： 幅材处理装置适于在不同程度的幅材张力下沿正向和反向移动幅材材料。 在这样的装置中，幅材摩擦驱动器是可启动的，以便采取操作模式，用于将幅材材料从其向前的方向朝向幅材拉伸机构进给，并且速率超过拉伸机构可以将相同材料向前拉 。 腹板摩擦传动通常采用空转模式，其中摩擦驱动器不会对沿正向或相反方向移动的腹板材料施加腹板进给影响。 纸张张力感测机构与纸幅摩擦驱动器连接，用于响应于感测到在从摩擦驱动器向卷筒纸拉伸机构向前移动的纸幅材料中的给定张力而使摩擦驱动器呈现操作模式，以及 允许摩擦驱动器在相同材料中的张力松弛或松弛之后承担空转模式。 然而，当纸幅材料沿相反方向移动时，纸张张力感测机构和纸幅摩擦驱动器保持断开。 以这种方式，幅材张力检测机构在幅材材料沿相反方向运动期间不能致动幅材摩擦驱动器呈现空转模式。
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公开(公告)号：US3769457A
公开(公告)日：1973-10-30
申请号：US3769457D
申请日：1972-09-27
申请人： EASTMAN KODAK CO
CPC分类号： H04N3/38
摘要： An electronic film video player for converting pictorial information in image frames on motion picture film into video signals for reproduction of the pictorial information as a video display. Film transport apparatus is operable in a play mode for continuously moving the motion picture film past a scanning gate in a forward direction. The image frames are scanned by a beam of light produced by a flying spot scanner of electrical to-optical signal transducer apparatus in a raster having a horizontal-tovertical aspect ratio related to the aspect ratio of the image frames, and the continuous rate of movement of the motion picture film past the scanning gate. Optical-to-electrical signal transducer apparatus responds to the moving spot of light modulated in intensity by the pictorial information content of the scanned image frames for producing video signals representative thereof. The film transport apparatus is alternately operable in a rewind mode for continuously moving the motion picture film in a reverse direction to rewind the motion picture film. The film transport apparatus is also operable in a still mode for scanning a stationary image frame located in a predetermined position in the scanning gate. The stationary image frame is located in the predetermined position from either the play or rewind modes of operation of the film transport apparatus through the operation of a control circuit which halts forward or reverse film motion upon a still mode command signal, advances the motion picture film in the forward direction after a time delay sufficient to ensure that film motion has ceased, detects the entry of the image frame to be viewed into the predetermined position in the scanning gate, and halts forward film motion. The scanning beam is suppressed in response to the still command signal until the stationary image frame is located in the predetermined position for still frame scanning. The aspect ratio of the raster produced by the flying spot scanner is made to conform to the aspect ratio of the stationary image frame.
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公开(公告)号：US3724777A
公开(公告)日：1973-04-03
申请号：US3724777D
申请日：1970-10-05
申请人： EASTMAN KODAK CO
发明人： MARTIN W , SAINT CLAIR J
摘要： Motion picture projector apparatus includes a hook-like member that is adapted to be moved into close proximity to a rotating roll of film or the like for engaging the film through an opening in a leading end portion of the film. The hook member then delivers the leading end portion of the film to self threading apparatus of the projector, and the hook is automatically disengaged from the film. The projector apparatus disclosed provides for automatic rewind of film, and for review or manual rewind of film.
摘要翻译： 电影投影仪装置包括一个适于移动到靠近薄膜等的旋转辊的钩状部件，用于通过薄膜的前端部分中的开口接合胶片。 钩构件然后将胶片的前端部分输送到投影机的自动穿线装置，并且钩子自动地从胶片上脱离。 所公开的投影仪装置提供胶卷的自动倒带，以及用于胶卷的回顾或手动倒带。
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公开(公告)号：US3854677A
公开(公告)日：1974-12-17
申请号：US33799673
申请日：1973-03-05
申请人： EASTMAN KODAK CO
CPC分类号： G03B1/56
摘要： A device for threading the leading end of a web material from a roll or coil of such material to drive rollers or other advancing means of a motion picture projector, or the like, includes a hook member adapted to engage a perforation in the web and guide the web material away from the roll. A bifurcated guide arm is provided to cooperate with the hook member to accurately position the hook member for engaging the perforation in the web member.
摘要翻译： 用于将卷筒纸材料的前端从这种材料的辊或线圈螺纹连接到驱动辊或电影投影仪的其它推进装置等的装置包括钩构件，其适于接合卷筒纸中的穿孔和导向件 纸幅远离卷筒纸。 提供分叉的引导臂以与钩构件协作以精确地定位钩构件以将穿孔接合在腹板构件中。
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公开(公告)号：US3837737A
公开(公告)日：1974-09-24
申请号：US32528873
申请日：1973-01-22
申请人： EASTMAN KODAK CO
发明人： MARTIN W , ST CLAIR J
摘要： Motion picture projector apparatus includes a hook-like member that is adapted to be moved into close proximity to a rotating roll of film or the like for engaging the film through an opening in a leading end portion of the film. The hook member then delivers the leading end portion of the film to self threading apparatus of the projector, and the hook is automatically disengaged from the film. The self threading apparatus comprises a pair of puck drive members which receive the film from the hook and drive it through a film guide toward a film gate at a rate that exceeds the rate film is advanced through the gate. The puck drive members are disengaged in response to the accumulation of film in the film guide. During rewind of film through the gate the puck drive members are disengaged to permit film to pass therebetween. The projector apparatus disclosed provides for review or manual rewind of film.
摘要翻译： 电影投影仪装置包括一个适于移动到靠近薄膜等的旋转辊的钩状部件，用于通过薄膜的前端部分中的开口接合胶片。 钩构件然后将胶片的前端部分输送到投影机的自动穿线装置，并且钩子自动地从胶片上脱离。 自动穿线装置包括一对圆盘驱动构件，其从钩子接收薄膜，并以超过薄膜前进通过门的速率将薄膜导向器朝向薄膜导向器驱动。 响应于胶片引导器中胶片的积聚，圆盘驱动部件脱开。 在通过闸门重新卷绕胶片时，将打印机驱动部件脱开以允许胶片通过。 所公开的投影仪装置提供胶卷的回顾或手动倒带。
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公开(公告)号：US3724858A
公开(公告)日：1973-04-03
申请号：US3724858D
申请日：1970-07-22
申请人： EASTMAN KODAK CO
发明人： MARTIN W
IPC分类号： G11B15/16 , G11B15/675 , G11B5/00
CPC分类号： G11B15/67573 , G11B15/16
摘要： A magnetic tape recorder for use in conjunction with a motion picture camera is provided with a compact portable housing having a door which may be opened to permit insertion of, or removal of, a tape cassette or cartridge. A cam mechanism operates in conjunction with the door whereby, when the door is opened, the record heads and a pressure roller which cooperates with the tape driving capstan are automatically withdrawn from their normal positions for easy removal or insertion of the cassette. The recorder is provided with an interlock system to prevent operation of an associated cine camera unless a cassette is received in the recorder and the door has been closed.
摘要翻译： 一种与电影摄像机结合使用的磁带录音机具有一个紧凑的便携式外壳，该便携式外壳具有一个门，该门可被打开以允许插入或取出带盒或盒。 凸轮机构与门一起操作，由此当打开门时，记录头和与带驱动绞盘配合的压力辊自动地从其正常位置退出以便于拆卸或插入盒。 录音机设置有互锁系统，以防止相关的电影摄像机的操作，除非盒式磁带被接收在记录器中并且门已经关闭。
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