| 摘要 |
983,331. Detecting defects in glass containers. ANCHOR HOCKING GLASS CORPORATION. Aug. 17,1962 [Aug. 18, 1961], No. 31729/62. Addition to 944, 737. Heading G1A. In a modification of the parent Specification the means for moving the inspecting light beam in relation to the container inspected along a path parallel to the rotational axis of the container moves the light beam more rapidly at some portions of the path than others. In the embodiment shown in Fig. 1 this is achieved by suitable shaping of the cams 79-84 which are used through cam followers 95 to raise and lower the inspecting heads A-F. Among other minor modifications included is a rim pit and dip inspection head A one half of which is shown in Fig. 15 in which light from a source (as in Fig. 27 not shown) is directed down a tube 78<SP>1</SP> and on to a jar 3 at an angle of about 60 degrees to the horizontal by means of a mirror 162. Any dips or pits on the rim of the jar 3 cause light to be reflected at an angle of about 40 degrees to the horizontal up a suitably positioned tube 163 to a mirror 165 which reflects the light up a tube 96<SP>1</SP> to a photomultiplier connected to a circuit (Fig. 37 not shown) controlling the reject mechanism.
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