| 摘要 |
An apparatus for checking disc-like objects for edge defects and deviations in the diameter of said objects from a pre-determined standard diameter. The apparatus includes a movement path for the objects being checked which is defined by two support members. The object supporting members are arranged to move in a parallelistic pattern of movement in relation to each other and are constantly biassed in a direction towards each other, the distance between said members being maintained at a pre-fixed magnitude by the object present in the movement path defined by said members. Also arranged in the vicinity of the movement path of said object is a pivot member, which is caused to be located in said movement path upon axial movement of one of said support members, whereby a defective object located in said path and contributing to said axial movement is pivoted over said pivot and rejected by the apparatus.
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