| 摘要 |
911,009. Machinery safety devices. BATTENFELD, W. Aug. 18, 1960, No. 28680/60. Class 80 (4). [Also in Groups V and XXII] A moulding-machine, e.g. an injection- or, as shown, a blow-moulding-machine, is prevented from operating until an ejected article interrupts a light beam falling on a photo-electric cell. Interruption of the beam during working, e.g. by an operator's hand, stops the machine. |
