Harrow tooth construction

Details Harrow tooth construction Harrow tooth construction

A - Human Necessities

01

B

97/84

A01B 23/02 (2006.01)

Patent

CA 1099565

- 10 - "HARROW TOOTH CONSTRUCTION" ABSTRACT OF THE DISCLOSURE Conventionally, double harrow teeth include a pair of teeth with coils around the transverse tube and a looped central portion clamped to the tube with a nut bolt and flat washer assembly. If the nut becomes loose, the looped central portion disengages from beneath the washer and can slide off the end of the tube if the nut disengages, as can happen when the looped central portion is no longer engaged by the washer. The present device prevents disen- gagement of the tooh from the bolt due to a downturned rear tab portion formed on the washer which engages over the rear of the looped central portion and prevents disengage- ment.

329425

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