Abstract: A turf combing device. A plurality of spring biased tines are fixedly mounted to rods rotatably mounted to a frame. Pivot arms fixedly mounted to the opposite ends of the rods are pivoted thereby rotating the rods and positioning the tines relative to ground.

Abstract: A harrow is provided having an elongate tool bar mounted on wheels for movement in a forward direction perpendicular to the tool bar. A plurality of harrow elements are mounted on the tool bar to extend generally rearward therefrom. A pair of support arms are pivotally mounted on the tool bar at a first end and mount each harrow element on a second end towards a rearward end of the harrow element. A hanger is connected between the support arms and the harrow element towards a forward end of the harrow element for suspending the harrow element therefrom. A plurality of tines are mounted on the harrow element such that the angle of the tines relative to the ground may be adjusted. A coupling connects between the hanger and the tines such that the height of the front end of the harrow frame is adjusted in response to tine angle adjustment.

Abstract: A harrow comprises an elongate tool bar formed in three sections including a central section and two wing sections all of which can rotate about a longitudinal axis, The wing sections are coupled by pivot couplings which allow the wing sections to fold rearwardly in the transport position. The tool bar carries a number of harrow elements each of which is formed by a rigid frame defined by longitudinal rails and welded cross bars with the frame carrying a plurality of tine support bars. A push rod simultaneously rotates all of the tine support bars about their respective axis to vary the angle of the tine in contact with the ground. The angle of the tines of all of the harrow elements are adjusted simultaneously by a number of rocker shafts mounted on the tool bar and operated by rephasing cylinders. Each push bar of each harrow element is attached to the respective rocker shaft for actuation.

Abstract: A pulled dethatching unit includes a frame having a tow bar extending forwardly for attachment to a draw bar of a pulling vehicle. The rear end of the frame has an arm pivotally attached to each side with each arm having a wheel rotatably mounted thereon. The two wheels and the tow bar cooperate so that tines, which are mounted in two rows on the frame for independent movement, do not carry any of the weight of the unit so that the bottom tip of each of the tines is slightly spaced from the ground in its rest position. Each of the tines in each of the rows is offset from each of the tines in the other row. Forward motion of the dethatching unit causes the bottom tip of each of the tines to deflect rearwardly and downwardly as it comes in contact with grass. In their deflected positions, the bottom tips of the tines contact the thatched layer to tear it loose from the soil and alternately flip the thatched layer to fall on the ground.

Abstract: A ground working implement is disclosed, having a multiplicity of ground working tools mounted on a set of rigid bars which are maintained in substantially parallel relative position by pairs of rigid links flexibly fastened to the pairs of the rigid bars, with hydraulic cylinders attached diagonally between rigid links to control the elevation above ground of the rigid bars which are supported on normally parallel wheel axles mounted below and in front of the individual rigid bars. Operation of the hydraulic cylinders enables variation in the ground penetration of tools mounted on and beneath the rigid bars as the implement is drawn over the ground.

Abstract: An elongated trailer-type vehicle is provided for pulling behind a prime mover such as a lawn tractor. The vehicle includes an elongated frame having vertically adjustable hitch structure at its forward end for releasable hitching behind a lawn tractor and downwardly extendible and upwardly retractable ground engaging support wheels for decreasing and increasing, respectively, the elevation of the frame above the ground surface upon which the wheels rest. The frame additionally includes front and rear depending spring tine assemblies forward and rearward of the wheels and the tine assemblies each include a plurality of depending tines spaced transversely of the frame.

Abstract: A dethatching unit is mounted for attachment to the front end of a self-propelled lawn mower, for example, so that the dethatching unit is pushed by the lawn mower and thatches the ground prior to mowing thereof. The dethatching unit includes a frame having a caster wheel at its forward end and arms at its rear end for attaching to the mower. The wheel and the arms cooperate so that tines, which are mounted in two rows on the frame, do not carry any of the weight of the unit so that the bottom tip of each of the tines is slightly spaced from the ground in its rest position. Each of the tines in each of the rows is offset from each of the tines in the other row. Forward motion of the dethatching unit causes the bottom tip of each of the tines to deflect rearwardly and downwardly as it comes in contact with grass. In their deflected positions, the bottom tips of the tines contact the thatch layer to tear it loose from the soil and ultimately flip the thatched material to fall on the ground.

Abstract: A dethatching unit is mounted for attachment to the front end of a self-propelled lawn mower, for example, so that the dethatching unit is pushed by the lawn mower and thatches the ground prior to mowing thereof. The dethatching unit includes a frame having a caster wheel at its forward end and arms at its rear end for attaching to the mower. The wheel and the arms cooperate so that tines, which are mounted in two rows on the frame, do not carry any of the weight of the unit so that the bottom tip of each of the tines is slightly spaced from the ground in its rest position. Each of the tines in each of the rows is offset from each of the tines in the other row. Forward motion of the dethatching unit causes the bottom tip of each of the tines to deflect rearwardly and downwardly as it comes in contact with grass. In their deflected positions, the bottom tips of the tines contact the thatch layer to tear it loose from the soil and ultimately flip the thatched material to fall on the ground.