公开(公告)号：US3751148A

公开(公告)日：1973-08-07

申请号：US3751148D

申请日：1971-10-05

Applicant: BALEX INTERN SA

Inventor： THEVENAZ L

IPC: G03B21/32 ,  G03B21/04

CPC classification number: G03B21/323

Abstract: A cinematographic projector comprises a light source, an objective, a film drive mechanism, a movable support for cassettes containing a spool of film, a temporary receiving member for the projected film, and a control mechanism for these devices. The movable support of the cassettes is displaceable horizontally in a direction perpendicular to the optical axis of the objective and comprises vertical compartments juxtaposed in the direction of displacement of the movable support and open at their upper end. Each compartment includes adjacent one end of its open upperedge, a first support member around which the cassette can pivot and a second support member withdrawing when the compartment is placed in extension of the optical axis of the projector. The cassettes in waiting position above the compartments and resting on the first and second support members tilt into their respective compartment around the first support member and are placed in film delivery position when the compartment is brought into the extension of the optical axis of the projector.

Abstract translation: 电影放映机包括光源，物镜，胶片驱动机构，用于包含胶卷卷轴的盒的可移动支架，用于投射胶片的临时接收元件以及用于这些装置的控制机构。 盒的可移动支撑件可以在垂直于物镜的光轴的方向上水平移动，并且包括垂直隔室，其在可移动支架的位移方向上并置并在其上端开放。 每个隔室包括其打开的上切的相邻的一端，第一支撑构件，盒可枢转在该第一支撑构件上，并且当隔室被放置在投影仪的光轴的延伸部时，第二支撑构件被抽出。 处于隔室上方等待位置并且搁置在第一和第二支撑构件上的盒子围绕第一支撑构件倾斜到它们各自的隔室中，并且当隔室进入投影仪的光轴的延伸部时被放置在胶片输送位置。