| 摘要 |
A device for automatically spreading and locking cotter pins as they are driven into place. The device is an improvement on the cotter pin spreading devices disclosed in Patent Nos. 1,751,013 dated March 18, 1930 and 2,345,141 dated March 28, 1944. The improved devices have locking extensions which, during the act of driving cotter pins into place, become deformed into locking engagement with the heads on the driven and spread cotter pins. Several forms of locking extensions are disclosed.
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