Observation camera is mounted on vertical drive device with axles mounted in slots in supports on either side and has horizontal drive system mounted below base to which supports are fixed

摘要

The observation camera (12) is mounted on a vertical drive device (14) containing a motor, variable resistor and transmission system. This has axles (142, 144) which are mounted in slots in supports (13, 15) on either side. A horizontal drive system (18) is mounted below the base (16) to which the supports are fixed.