Abstract: A tillage coulter unit (22, 122) adapted for use with a farm implement (10) is provided which permits high speed tillage operations (e.g., field fertilization using liquid fertilizer such as ammonia, or seeding) without undue soil disruption or fertilizer vaporization. The coulter unit (22, 122) includes an upright, rotatable coulter blade (26, 130) with a gauge assembly (28, 132) operable to limit the depth of the coulter blade into soil and to minimize soil disruption. The gauge assembly (28, 132) preferably includes a pair of elongated, shiftable belt or chain loops (74, 212, 214) positioned in straddling relationship and astride the blade (26, 130). The loops (74, 212, 214) present lower runs (96, 212a, 214a) which substantially contact the soil as the unit (22, 122) traverses a field.

Abstract: A maintenance free repetitive sealing system for a disk blade bearing hub utilizing an integrated system of components to seal and protect the primary bearing seal. The blade side of the spindle includes a hub overlap portion which deflects dirt, keeps large debris out, and prevents wrapping. A plastic seal protector keeps dirt and debris from pushing directly into external seal lips of a multiple lip seal. The lip seal provides positive sealing and is backed up by a grease layer barrier. The hub overlap, plastic seal protector, and grease barrier protect the bearing seal. The back side of the bearing hub is positively sealed with a protected O-ring and dust cap combination. The cap combination also protects the blade mounting hardware threads and nut.

Abstract: A double disk C-spring standard assembly utilizes bearings mounted to a simple carrier plate. The plate is connected to the lower end of a single C-spring oriented in the fore-and-aft direction. Bearing assembly mounting holes in the plate define the necessary gang angles. Compact disk blade hub assemblies facilitate side-by-side mounting of the center bearing assemblies.

Abstract: An auger-like apparatus for boring planting holes includes an elongate shaft carrying a spiral blade or screw flight at its lower end. Means are provided at the outer end of the cutting edge to protect a sprinkler conduit or hose which may be contacted by the apparatus. In one embodiment, the outer end of the cutting edge is rounded and tapered into the peripheral edge of the screw flight. In a second embodiment, a guard extends between the outer edge of the cutting edge and a subsequent spiral of the screw flight. The shank may be graduated and support a slidable snap ring. A graduated tape mechanism is also provided to gauge the spacing of the plant bores.

Abstract: A cutting arrangement for grass is releaseably mountable or attachable to a vehicle. For cutting the grass, a rotatable wheel is used. The wheel extends outwardly from one side of the housing and has a cutting disc. The position of the wheel is adjustable.

Abstract: A seed drill has rotatably mounted opener discs disposed in an acute angle with respect to the direction of travel and mounted on supports. A skid is mounted to each support at the outside surface of the disk at an angle with respect to the direction of travel. Each skid includes a trailing portion configured to have a sliding surface disposed above the depth of penetration of the disk in the ground and a leading portion bent upwardly in the direction of travel and having a recess in the side thereof facing the disk and which extends beyond the forwardmost portion of the disk in the direction of travel.

Abstract: A depth control skid and seed boot assembly is disclosed that is particularly useful in a sod seeding implement for adjusting the maximum depth of cut of a cutting wheel and for adjusting the depth of the seed boot independently of each other. An arm rotatably mounting a pair of cutting wheels slidably receives the forward section of the skid. The rear of the skid is bolted to a bracket assembly vertically positionable with respect to the arm for adjusting the depth of cut. The bracket assembly pivotally carries the seed boot which is yieldingly and adjustably held in position with respect to the ground by a bolt and spring assembly. The seed boot can pivot upwardly against the bias of the spring out of the way of obstacles.

Abstract: A new ski track mold is disclosed which is capable of forming a new and improved type of ski track for use in Nordic skiing when towed behind a tractor, snowmobile or similar transport vehicle. This invention provides novel means for forming a ski track which has a track plane for each ski substantially perpendicular to the earth's gravitational vector forces regardless of the type of terrain being traversed, as well as novel means for assuring a superior quality ski track with an increased life span.