Abstract: A turf maintenance vehicle all-wheel drive traction control system includes a primary wheel propelling the vehicle. A first motor rotates the primary wheel. A traction control system has a first portion communicating with the first motor to monitor either a first motor current demand or a rotational speed of the primary wheel or the first motor and generates a traction control value. A secondary wheel rotated by a second motor steers the vehicle in a vehicle non-slip condition. A traction control system second portion determines a secondary wheel steering angle value. A speed threshold limit stored in the traction control system compared to the traction control value generates a slippage occurrence message indicative of a primary wheel traction loss event. A second motor drive signal created by comparing the steering angle value and the slippage occurrence message energizes the second motor during the traction loss event.

Abstract: A method and apparatus for sharpening clockwise rotating standard blades, counter-clockwise rotating standard blades and mulching style blades of either clockwise or counter-clockwise rotation is provided. The present invention comprises a base with a blade fixture which is reversible to accommodate both clockwise and counter-clockwise rotating blades. Uprights, a slide shaft, a slide bushing and a handle shaft connected to a disc grinder provide a means for setting a primary cutting angle for sharpening the primary cutting edges of a blade. An adjusting wheel rotatable attached to the handle shaft and pivotably coupled to the disc grinder provide a means for quickly and easily adjusting the cutting angle in order to accommodate sharpening the secondary cutting edges of a mulching style blade and returning the disc grinder back to its original cutting angle.

Abstract: A hand-held sharpening tool for sharpening tractor and lawn mower attachments blades while the blade are attached to the tractor or lawn mower. The tool includes a tool body having a grinding surface that extends away from the tool body in a substantially perpendicular direction and a second grinding surface that extending away from the tool body in an angled direction. The two grinding surfaces are located in close proximity of each other to create a grinding zone and allows for a blade to simultaneously engage both grinding surfaces. As the tool is drawn along said blade, its edge is sharpened.

Abstract: A method and apparatus for sharpening clockwise rotating standard blades, counter-clockwise rotating standard blades and mulching style blades of either clockwise or counter-clockwise rotation is provided. The present invention comprises a base with a blade fixture which is reversible to accommodate both clockwise and counter-clockwise rotating blades. Uprights, a slide shaft, a slide bushing and a handle shaft connected to a disc grinder provide a means for setting a primary cutting angle for sharpening the primary cutting edges of a blade. An adjusting wheel rotatable attached to the handle shaft and pivotably coupled to the disc grinder provide a means for quickly and easily adjusting the cutting angle in order to accommodate sharpening the secondary cutting edges of a mulching style blade and returning the disc grinder back to its original cutting angle.

Abstract: A computer controlled all-in-one reel mower sharpener and roller alignment system can be rolled under a mower to be conditioned. No removal of the cutting unit is needed. A linear voltage displacement transducer (LVDT 715 or a mechanical dial indicator 7155; alternatively a friction wheel 7150 with a rotary encoder 7151 may be used, or any combination of sensors 715, 7155, 7151) or equivalent instructs the machinist how to align the front and rear rollers in parallel. A laser scanner or probe determines the location for the cutter, and then the machining head sharpens each blade automatically. A separate cutter sharpens the bed knife. Most all mowers can be conditioned based on the laser or probe calibration of the blade size. The laser or probe measures the height of cut by sensing the blade location.

Abstract: For the purpose of developing a device for sharpening multi-blade cutters, the invention proposes a device for sharpening multi-blade cutters having at least one motor and a holding table that is mobile relative thereto, the holding table comprising a holding member for clamping the cutter and a motor axis of the motor being disposed crosswise to the main shifting axis of the holding table.

Abstract: A device and method for sharpening the blade of a lawn mower without removing the blade from the mower, the device comprising a motor, a flexible drive cable, a grinder housing and a two-sided grinding disk. Most preferably, the motor is powered by a rechargeable battery, and the drive cable is connected to the grinder housing by a universal joint.

Abstract: A device for grinding a rotary mower blade (16), the device comprising an adjustable support for receiving a rotary mower blade, means for fixing the blade relative to the support, means for feeding the support and blade both axially and transversely relative to a grinding wheel (4), and for pivoting the support towards and away from the grinding wheel.

Abstract: A method of constructing a bed knife blade assembly for a reel-type lawn mower having a frame rotatably supporting a cutting reel. The bed knife blade assembly comprises a clamp plate having a flange with a locking surface, and a blade insert having a tab cooperating with the locking surface to restrict movement of the blade insert relative to the clamp plate. The clamp plate is adapted to be coupled to the frame such that the flange biasedly engages the tab to further restrict movement of the blade insert relative to the clamp plate.

Abstract: This invention is a sharpening device for lawn edger blades. The device is specifically designed for attachment to the machine and in use for when the machine is in operation. The reason for this is to keep the cutting edge of the blade continually sharp. The attachment is positioned near the cutting edge and sharpens the blade as it rotates. A manual switch or lever activates the sharpener as the user desires. The sharpener includes a caliper with an abrasive surface to squeeze against the rotating blade while the edger is in operation.