| 摘要 |
Clamping means for a piece of farm machinery, more specifically a disc harrow. The clamping means assures the proper tightening and positioning of one or more discs which are concavo-convex in shape upon a shaft. The clamping means includes a reaction member such as an anchor nut for the threaded end of the gang bolt or tie-rod which reaction member or anchor nut has a series of threaded holes through it and carries tightening screws or bolts and a clamping plate which has a central opening embracing the shaft but not connected to the shaft said plate being spring-like in character and engageable by the tightening screws whereby the plate is adapted to be forced by its outer surface, or at least the margin thereof against the surface of the disc which is adjacent to it whereby the gang bolt is placed under proper tension and the disc, or discs, and spacers between discs are adequately pressed together under spring tension.
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