Cultivator and tractor combinations

Claim 2

A cultivator implement comprising a supporting frame and a rotary harrow in combination with a roller that regulates the working depth of said harrow, said harrow having a plurality of side-by-side rotatable soil-working members with downwardly extending tines, said soil-working members being mounted on upwardly extending shafts in a row that extends transverse to the direction of travel, driving means connected to said shafts to rotate said tines and the widths of the strips worked by the rotating tines exceeding the perpendicular distances between adjacent shafts, said roller being connected to said implement to trail the harrow and to bear on the freshly worked soil, said roller being pivotally connected to said frame and positioned immediately to the rear of said soil-working members, said roller including a central axis shaft interconnected to the frame and a plurality of longitudinal members with substantially circular cross-sections disposed around the outer periphery of said roller, said longitudinal members being turnably mounted on supporting means at each end of said roller and said longitudinal members being movable with respect to each other and with respect to said axis shaft during the rotation of said roller, whereby said roller slightly compresses the soil worked by the tines and breaks up remaining lumps of the worked soil.

Claim 3

An implement as claimed in claim 1, wherein said longitudinal members are turnably mounted on end support plates of said supporting means.

Claim 4

An implement as claimed in claim 1, wherein a transmission connects said driving means and said upwardly extending shafts and said transmission comprises a plurality of cooperating toothed pinions secured to said shafts, a forward pinion of said transmission being located adjacent the center of the row of said soil-working members and being in driving connection with an input shaft of said driving means.

Claim 5

An implement as claimed in claim 3, wherein said input shaft extends substantially parallel to the direction of travel and has a bevel pinion geared to said forward pinion, said bevel pinion being located at a lower level than said forward pinion.

Claim 6

An implement as claimed in claim 4, wherein said forward pinion is rotatable about an upwardly extending axis and said input shaft is contained in a housing located in front of the row of said soil-working members.

Claim 7

A cultivating implement comprising a tractor and a harrow in combination with a roller on a frame for defining the working depth of said harrow, said harrow having a plurality of rotatable soil-working members with tines supported on said frame, said soil-working members being mounted on upwardly extending shafts in a row that extends transverse to the direction of travel, a power take off on said tractor in a housing on said harrow being in driving connection with a pinion transmission geared to meshed toothed pinions on said upwardly extending shafts to rotate same, the perpendicular distances between the tips of said tines on each of said soil-working members exceeding the perpendicular distances between adjacent upwardly extending shafts, said housing and transmission constituting the connection between the tractor and the harrow frame, said transmission comprising a pinion mounted on a vertical shaft and said vertical shaft being spaced from the upwardly extending shafts of said soil-working members, said roller being positioned to bear on the freshly worked soil and said roller being pIvotally connected to said frame and having a plurality of longitudinal members with substantially circular cross-section which are disposed around the periphery of said roller, said longitudinal members being turnably mounted on supporting means at each end of said roller and said longitudinal members being movable with respect to each other and with respect to said axis shaft during the rotation of said roller, whereby said roller slightly compresses the soil worked by the tines and breaks up remaining lumps of the worked soil.

Claim 8

A cultivating implement comprising a tractor and a harrow in combination with a roller on a frame for defining the working depth of said harrow, said harrow having a plurality of rotatable soil-working members with tines supported on said frame, said soil-working members being mounted on upwardly extending shafts in a row that extends transverse to the direction of travel, a power take off on said tractor in a housing on said harrow being in driving connection with a pinion transmission geared to meshed toothed pinions on said upwardly extending shafts to rotate same, the perpendicular distances between the tips of said tines on each of said soil-working members exceeding the perpendicular distances between adjacent upwardly extending shafts, said housing and transmission constituting the connection between the tractor and the harrow frame, said transmission comprising a pinion mounted on a vertical shaft and said vertical shaft being spaced from the upwardly extending shafts of said soil-working members, said roller being positioned to bear on the freshly worked soil and said roller being pIvotally connected to said frame and having a plurality of longitudinal members with substantially circular cross-section which are disposed around the periphery of said roller, said longitudinal members being turnably mounted on supporting means at each end of said roller and said longitudinal members being movable with respect to each other and with respect to said axis shaft during the rotation of said roller, whereby said roller slightly compresses the soil worked by the tines and breaks up remaining lumps of the worked soil.

Claim 9

A cultivating implement comprising a tractor and a harrow in combination with a roller on a frame for defining the working depth of said harrow, said harrow having a plurality of rotatable soil-working members mounted in a row on said frame transverse to the normal direction of travel, each of said soil-working members having downwardly extending tines and being rotatable about an upwardly extending shaft, a driving connection with an engine mounted on said frame and said driving connection including a pinion gear transmission located above said soil-working members, the perpendicular distances between the tips of said tines extending the perpendicular distances between adjacent upwardly extending shafts, steering means being provided on said tractor to extend to the rear, said steering means being positioned above said driving connection, said roller being positioned to bear on the freshly worked soil and being pivotally connected to said harrow frame, said roller including a central axis shaft and a plurality of longitudinal members with a substantially circular cross-section disposed around the periphery of said roller, said longitudinal members being turnably mounted on supporting means at each end of said roller and said longitudinal members being movable with respect to each other and with respect to said axis shaft during the rotation of said roller, whereby said roller slightly compresses the soil worked by the tines and breaks up remaining lumps of the worked soil.

Claim 10

A cultivating implement comprising a tractor and a harrow in combination with a roller on a frame for defining the working depth of said harrow, said harrow having a plurality of rotatable soil-working members mounted in a row on said frame transverse to the normal direction of travel, each of said soil-working members having downwardly extending tines and being rotatable about an upwardly extending shaft, a driving connection with an engine mounted on said frame and said driving connection including a pinion gear transmission located above said soil-working members, the perpendicular distances between the tips of said tines extending the perpendicular distances between adjacent upwardly extending shafts, steering means being provided on said tractor to extend to the rear, said steering means being positioned above said driving connection, said roller being positioned to bear on the freshly worked soil and being pivotally connected to said harrow frame, said roller including a central axis shaft and a plurality of longitudinal members with a substantially circular cross-section disposed around the periphery of said roller, said longitudinal members being turnably mounted on supporting means at each end of said roller and said longitudinal members being movable with respect to each other and with respect to said axis shaft during the rotation of said roller, whereby said roller slightly compresses the soil worked by the tines and breaks up remaining lumps of the worked soil.