Abstract: A windowpane mounting system for mounting a windowpane on a vehicle body comprises a vehicle body conveyor for intermittently feeding the vehicle body, and a windowpane mounting robot for mounting a windowpane on the vehicle body at a windowpane mounting station. The windowpane mounting robot is arranged to be movable between a first mounting position for mounting one of the windowpanes for the windshield and the rear window and a second mounting position for mounting the other windowpane, the first mounting position being further than the second mounting position from a windowpane supply station at which the windowpane mounting robot receives the windowpanes, and is arranged to perform a mounting operation at the first mounting position in response to the feeding of the vehicle body to said windowpane mounting station by the vehicle body conveyor.

Abstract: An automatic ultrasonic flaw detecting system adapted to search flaws on steel pipes being continuously transferred and provide markings at the positions of flaws on the steel pipes. The system comprises a probe adapted to search flaws on the steel pipe, a holder for the probe, and a flaw pulse generation circuit adapted to generate flaw pulse signals in response to the flaw signals from the probe. A travel measurement pulse generator generates measurement pulse signals by measuring the distance which the steel pipes have travelled. A pipe and sensor detects the end of the steel pipe and generates pipe end detection signals. A flaw tracking control apparatus tracks the flaws in response to the flaw pulse signals, the measurement pulse signals and the pipe end detecting signals and generates marking control signals. A marking is provided at the position of flaws detected on the steel pipe in response to the marking control signals.