Earth working device tooth and cutting edge - has body with projecting tooth between pair of cutting edges

摘要

The combined teeth and cutting edges are mounted on a conventional blade support and ramp of a scraper bowl, bucket etc., and are formed as rectangular plates carrying a single tooth. The plates are secured by countersunk holes and have each a V-shaped nothc in their forward edges. These notches receive the parallelogram shaped teeth which are slightly bent about their longitudinal axis to increase strength and improve material shedding. The teeth are secured in the notches by welding or the assembly may be forged from a single piece of metal.