公开(公告)号：US3758047A

公开(公告)日：1973-09-11

申请号：US3758047D

申请日：1971-01-28

Applicant: BELL & HOWELL CO

Inventor： THOMSEN J ,  CHERNIAVSKYJ J ,  NUPNAU A ,  KIM R

IPC: G03B1/50 ,  G03B1/04 ,  G11B15/32

CPC classification number: G03B1/50

Abstract: A shuttle is manually adjustable transversely of a film path to enable engagement of its claw in sprocket performations of standard 8mm and super 8mm films for intermittent movement thereof in opposite projection directions, the rate of which is selectively controllable by manual means. An interlock mechanism disables the manual means and enables the shuttle adjusting means when a switch for closing the power circuit of the projector is ''''off,'''' and enables the manual means while disabling the other means when the switch is ''''on.'''' A single solenoid in the circuit is energizable manually for removing a strip from a supply reel for projection, and manually and by filmstrip condition for returning the filmstrip to said supply reel. Responsively, the shuttle and the film gate, respectively, will be withdrawn from the film path and expanded to facilitate filmstrip movement through the gate for threading and rewind.

Abstract translation: 梭子可以横向于胶片路径手动调节，以使其爪能够在标准8mm和超8mm胶片的链轮表演中接合，用于在相反的投影方向上间歇运动，其速率可通过手动方式选择性控制。 当关闭投影机的电源电路的开关为“关闭”时，互锁机构禁用手动装置并使梭子调节装置启用，并且当开关处于“打开”状态时禁用其他装置时启用手动装置。 电路中的单个螺线管可手动激励，用于从用于投影的供带盘上移除条带，并且手动地通过胶卷条件将胶片返回到所述供带盘。 响应地，梭子和胶片门将分别从胶片路径中撤出并且被扩展以便于通过门的胶片移动以进行卷绕和倒带。

公开(公告)号：US3791622A

公开(公告)日：1974-02-12

申请号：US3791622D

申请日：1972-01-26

Applicant: BELL & HOWELL CO

Inventor： NUPNAU A

IPC: G03B21/32 ,  G03B21/04

CPC classification number: G03B21/323

Abstract: An indexing mechanism for sequentially presenting each of a plurality of cassettes containing photographic film to a projection station in a film projector. The indexing mechanism includes a pair of stop members that are alternately placed in and out of engagement with an abutment on the cassette.

Abstract translation: 一种索引机构，用于将包含摄影胶片的多个盒子中的每一个顺序呈现到投影机中的投影站。 分度机构包括一对停止构件，其被交替地放置在与盒上的邻接件接合的位置上。

公开(公告)号：US3724775A

公开(公告)日：1973-04-03

申请号：US3724775D

申请日：1970-04-13

Applicant: BELL & HOWELL CO

Inventor： NUPNAU A

IPC: G03B21/32 ,  G03B1/04 ,  G11B15/32

CPC classification number: G03B21/323

Abstract: A support assembly adaptable for supporting varying sized reels of film at a projection station on a motion picture projector. The support assembly includes a gate member having a first position to permit projecting any one of a plurality of like sized reels of film supported on the projector and having a second position to permit projecting a selected one of varying sized reels of film.

Abstract translation: 支撑组件，适用于在投影站上投影电影投影仪上支持不同尺寸的胶片卷轴。 所述支撑组件包括门构件，所述门构件具有第一位置，以允许突出支撑在所述投影仪上的多个相似尺寸的膜的卷轴中的任一个，并具有第二位置以允许投影所选择的不同尺寸的胶片卷。