| 摘要 |
A control mechanism for operating the drafting gate of a drafting race comprising a superstructure adapted to be mounted above the race, an operating handle suspended from the superstructure substantially parallel with the race for rocking movement about a substantially horizontal axis substantially parallel with the race and at a position so that it can be gripped by an operator standing at one side of the race, one end of the operating handle being coupled to the drafting gate to effect rotation thereof. |
