公开(公告)号：US4248172A

公开(公告)日：1981-02-03

申请号：US68178

申请日：1979-08-20

申请人： Heinz Krobel ,  Walter Bauer ,  Manfred Schmidt

发明人： Heinz Krobel ,  Walter Bauer ,  Manfred Schmidt

IPC分类号： G03B42/04 ,  G09F9/00 ,  G01D11/00 ,  G01D13/00

CPC分类号： G03B42/04

摘要： An indicating arrangement for indicating the absence or presence of film in the interior of an X-ray film cassette includes an indicating member movably mounted on one portion of the cassette. Another portion of the cassette which is juxtaposed with the one portion has a recess therein, in which the inner end of the indicating element is received when film is absent from the internal space of the cassette, but which is covered by the film when the same is properly introduced into the internal space of the cassette so that the inner end of the indicating element is prevented from entering this recess. The position of the indicating element can be perceived at the exterior of the one portion of the cassette in a tactile or visual manner. The indicating element may be a discrete element mounted on the cassette, or a one-piece part of a flexible portion of the cassette. In either event, the indicating element is guided in a rigid portion of the cassette so that the position of the indicating element relative to this rigid portion may be ascertained either by touch or by observation.

摘要翻译： 用于指示X射线胶片暗盒内部不存在或存在胶片的指示装置包括可移动地安装在盒的一部分上的指示部件。 与一个部分并列的盒的另一部分在其中具有凹部，其中当胶片不存在于盒的内部空间中时，指示元件的内端被接收，但是当相同的膜被膜覆盖时 被适当地引入到盒的内部空间中，使得指示元件的内端被阻止进入该凹部。 指示元件的位置可以以触觉或视觉的方式感知在盒的一部分的外部。 指示元件可以是安装在盒上的分立元件，也可以是盒的柔性部分的一体部分。 在任一情况下，指示元件被引导在盒的刚性部分中，使得指示元件相对于该刚性部分的位置可以通过触摸或通过观察来确定。