| 摘要 |
<p>Fluid operated apparatus for controlling the operation of a device actuator that is connectable in an electric circuit and adapted to be energized in response to sensing of the presence of a particular coding on a film cartridge or other member. Fluid operated means senses the coding on a cartridge and selectively controls the application of fluid pressure to a fluid operated switch so that the switch is opened or closed according to the coding sensed. Electrical contacts of the switch are connectable in a circuit including the device to be controlled so that the device is operated only in response to the presence of a cartridge having a particular code thereon. In a preferred embodiment disclosed the apparatus is adapted to sense two particular cartridge codes and to operate a punch used to strip film from the cartridge only when a conditioning switch on a film processor indicates that the processor is set to handle the film type that is in the cartridge.</p> |
