| 摘要 |
A control mechanism for operating positively controlled openings of rapier heads of weaving machines equipped with rapiers. The control mechanism has a first and a second lateral cam and first and second rollers driven by the cams respectively. The rollers are mounted on a pivoting lever. First and second control levers are directly connected to an oscillating shaft of a cam lever, the cam lever moving to and fro by means of the cam. The cam is connected to a main shaft which transmits a uniform rotation speed to the shafts.
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