| 摘要 |
<p>A light-tight cassette. A light-tight cassette for holding and dispensing a roll of light-sensitive material comprising an extrusion moulded shell (11) and injection moulded end caps (12,13). Difficulties which may arise in fitting the end caps to the shell are avoided by providing the inner face of the end caps with axially projecting corner portions (26,27,28) having a three-dimensional form providing outwardly facing surfaces which are outwardly convexly curved both in radial planes containing the axis of the hub portion (44) of the cap and in planes normal to said axis. The said corner portions fit inside corner regions of the shell and have a self-centralizing effect if -the caps and shell are pushed together in abaxial and/or relatively angularly skewed relationship. GV.1050</p> |
