| 摘要 |
A follower mechanism for cam-controlled machine tools which is responsive to abrupt changes in the slope of the control cam. A two-link lever system carries a bearing pin and a stylus pin. The bearing pin is engaged to the sensor element of the follower mechanism, and when it is moved sufficiently far laterally in either direction by encountering an abrupt slope, such as a rising or falling shoulder relative to its travel, stops the cam motion and throws the mechanism into a condition which will cause the stylus pin to trace over the surface of the abrupt slope.
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