Narrow ditch trencher

E - Fixed Constructions – 02 – F

Patent

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262/36

E02F 5/08 (2006.01)

Patent

CA 1128078

ABSTRACT OF THE DISCLOSURE A trencher for escavating narrow channels in soil comprises a power driven wheel rotating about a transverse, horizontal axis and a plurality of buckets disposed about its periphery. The wheel includes a pair of circular gear racks disposed inwardly from its periphery and symmetrically about the vertical midplane of the wheel. A pair of pinions, engaging the pair of racks, symmetrically applies driving energy to the wheel. Each of the buckets comprises an arcuate cutter face and undercut, arcuate, longitudinal body portion which are secured to the wheel by a flat spoke extending radially outwardly from the vertical midplane of the wheel. The trencher also includes two pairs of arms disposed on opposite sides of the wheel and bucket spokes. As the wheel and buckets rotate, soil is engaged, lifted above ground level and emptied from the buckets by the pairs of arms. Trenches for plastic drain pipe, for example, as deep as six feet and no wider than one foot may be dug by the trencher of the instant invention at speeds as great as forty feet per minute.

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