| 摘要 |
The grapple (56) releases the lock (21) from the control rod guide tube sleeves (17) and also provides a means for installing or removing as one entire unit the complete assembly that comprises the lock, washer, spider, spring and grill. To accomplish these results, the grapple is provided with a number (57) that is movable in the direction of longitudinal axis. The jaw (70) is provided at its extreme end with a clamp (73) that engages a longitudinal edge of the grill. In a similar manner, the extreme end of the jaw (67) also is provided with a clamp (74) that is oppositely disposed from the clamp on the jaw (70).
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