Abstract: A simplified spike tooth harrow includes an apertured bracket pivotally connected to the fore-and-aft connecting strap extending between the tine bars. The bracket adjustably supports a tine bar from the strap. A pin selectively secured in one of the apertures contacts the strap to set the working angle of the tines on the bar when the harrow is operated in the field. A chain or link connected to the bracket at a location offset from the bracket pivot suspends the harrow from an upper drawbar assembly which is movable vertically between field-working and transport positions. When the drawbar assembly is raised to the transport position so the harrow is out of ground contact, the bracket pivots so the pin is offset from the strap and can be easily and quickly removed from the aperture and reinserted in a different aperture to change the tine angle.

Abstract: A coupling (31, 32) for use with agricultural implements (1) such as yard scrapers, and agricultural implements including the coupling (31, 32) are described. The coupling (31, 32) sits between connection means (20) such as a vehicle mounting point, and a working portion (1) such as the frame (10) of a yard scraper (1). The coupling is simple, and provides an effective way for transferring load between the connection means (20) and the working portion (1).

Abstract: An opener unit having a pair of single disc openers mounted upon a parallel linkage which may be mounted onto a tool bar or drawbar is disclosed and claimed. The pair of single opener discs may be used for controlled creation of a pair of furrows to which seed, fertilizer or other soil amendments may be delivered. The opener unit may be mounted in combination with a row clearing or cleaning unit. The opener unit may also be mounted in combination with an auxiliary depth tire or a ski, and or a furrow closing means such as a wheel, a chain or a strap.

Abstract: This invention concerns a snow-handling trail-grooming device. The invention comprises a sled including at least one runner member, a sled front end, a sled back end and an open-ended longitudinal cavity therethrough open at opposed longitudinal ends thereof. The sled is connectable to a snowmobile by a towing or hitching member joined with the sled for hitching and unhitching the sled to and from the snowmobile. A tunnel structure is joined with the runner member and positioned over the open-ended longitudinal cavity. Finally, a handling-grooming member can be joined with the runner member, wherein the handling-grooming member is positioned in an extended direction away from the tunnel structure during snow-handling and trail-grooming.

Abstract: Integral hitch and standard mounting structure for a toolbar includes a first embodiment having a hitch tube connected to a three point hitch and to a rear toolbar. Brackets located a substantial distance outwardly of the hitch connect the hitch tube to the toolbar in parallel, rearwardly offset relationship to provide sufficient space between the tube and toolbar for lateral adjustment of tool brackets. Upright plate structure fixed relative to the front face of the toolbar has slotted extensions which project above and below the toolbar. Tool standard mounting bracket structure includes an upper L-shaped member having a horizontal leg positioned against the top of the toolbar and an upstanding bolt-receiving leg positioned against the upper slotted extension. A lower L-shaped member having a downturned bolt-receiving leg is fixed to the top of the tool standard and is positioned against the bottom of the toolbar and against the lower slotted extension.

Abstract: A support is connectable with an agricultural machine, and a plurality of agricultural tools is provided which are mounted by mounting elements on the support so that they can be adjusted relative to the support. A single arresting element is provided which arrests all of the tools in their respective positions. The tools have mounting portions extending into a passage in the support and either the passage itself or an auxiliary element in the passage has a wedge face to engage the tool mounting portions.