Abstract: The invention is directed to power rake accessories, with a powered toothed drum, attachable to supporting vehicles. Preferred embodiments include a forward mounted retractable blade portion which can be lowered for levelling/grading operations, or raised for pure raking. Disclosed also are dual blade edge variants with different functionality in forward and reverse operations, and a retractable drum wiping blade.

Abstract: Grader Apparatus for attachment to a vehicle has a main body portion coupled to a blade body portion by multiple linkages. These include primary load bearing links which connect to the blade portion aligned in a vertical z-axis allows rotation of the blade portion thereabout. Adjustable length actuators allow rotational yaw control about the z-axis. Adjustable roll actuators connect between an extension of the main body portion and the blade body portion to control its elevation and roll angle. Other embodiments allow lateral shifting of the blade body portion, and include an improved slope sensor catering for yaw with roll combinations.

Abstract: Ground/face working apparatus (1) comprises a primary support portion (2) for mounting to a vehicle and an accessory body portion (3) including or allowing the attachment of an accessory such as a blade (5). Multiple fixed length links (4a-c) allow and limit a degree of relative movement between the accessory body portion (3) and primary support portion (2) including lateral, vertical, and roll rotational (about a horizontal longitudinal axis). Control actuators (6a, 6b) primarily control the aforesaid rotational and vertical dispositions of the portions (2, 3) while a side shift variable length link comprising an actuator (8) affects the amount of lateral movement.

Abstract: Disclosed is a ground modifying apparatus of a type sometimes known as levellers, typically as used on tractors and skid-steer vehicles. In current practice these are used for preparing, levelling, and contouring the ground. Such device includes at least an accessory body portion supporting a ground modifying accessory or includes a way to attach the same. The apparatus includes a travelling carriage assembly pivotably attached by a carriage pivot, about a rotational axis substantially parallel to a longitudinal axis of the apparatus. The carriage pivot is positioned lower than the center of gravity of the travelling carriage assembly.

Abstract: A levelling apparatus, typically as used on tractors, excavators and skid-steer vehicles includes a blade body portion and body mounting portion connected by an arrangement of fixed and adjustable linkages, preferably hydraulic, to allow movement of the blade body portion (relative to the body mounting portion) in substantially an up and down direction, as well as rotational movement about an axis perpendicular to the general plane of an attached blade.

Abstract: A levelling apparatus, that is typically as used on tractors, excavators and skid-steer vehicles, and references the levelling assembly and mounting options including directly to the existing blade of vehicles as well as other mounting arrangements. Preferred embodiments of a levelling apparatus include a blade body portion and body mounting portion connected by an arrangement of fixed and adjustable linkages, preferably hydraulic, to allow movement of the blade body portion, relative to the body mounting portion, in substantially an up and down direction, as well as rotational movement about an axis perpendicular to the general plane of an attached blade.

Abstract: Disclosed is a ground modifying apparatus of a type sometimes known as levellers, typically as used on tractors and skid-steer vehicles. In current practice these are used for preparing, levelling, and contouring the ground. Such device includes at least an accessory body portion supporting a ground modifying accessory or includes a way to attach the same. The apparatus includes a travelling carriage assembly pivotably attached by a carriage pivot, about a rotational axis substantially parallel to a longitudinal axis of the apparatus. The carriage pivot is positioned lower than the center of gravity of the travelling carriage assembly.

Abstract: The present invention is directed to levelling apparatus, typically as used on tractors, excavators and skid-steer vehicles, and references the levelling assembly and mounting options including directly to the existing blade of vehicles as well as other mounting arrangements. Preferred embodiments of a levelling apparatus include a blade body portion and body mounting portion connected by an arrangement of fixed and adjustable linkages, preferably hydraulic, to allow movement of the blade body portion (relative to the body mounting portion) in substantially an up and down direction, as well as rotational movement about an axis perpendicular to the general plane of an attached blade.

Abstract: The present invention is directed to levelling apparatus, typically as used on tractors, excavators and skid-steer vehicles, and references the levelling assembly and mounting options including directly to the existing blade of vehicles as well as other mounting arrangements. Preferred embodiments of a levelling apparatus include a blade body portion and body mounting portion connected by an arrangement of fixed and adjustable linkages, preferably hydraulic, to allow movement of the blade body portion (relative to the body mounting portion) in substantially an up and down direction, as well as rotational movement about an axis perpendicular to the general plane of an attached blade.

Abstract: A levelling apparatus, typically as used on tractors, excavators and skid-steer vehicles, and references the levelling assembly and mounting options including directly to the existing blade of vehicles as well as other mounting arrangements is provided. Preferred embodiments of a levelling apparatus include a blade body portion and body mounting portion connected by an arrangement of fixed and adjustable linkages, preferably hydraulic, to allow movement of the blade body portion (relative to the body mounting portion) in substantially an up and down direction, as well as rotational movement about an axis perpendicular to the general plane of an attached blade.

Abstract: The present invention is directed to modifications to driving flexible tracks, typically of the type used on small excavators and tractors. The present invention provides a second outer sprocket arrangement to engage with outer guard teeth on the track, these being present on a number of proprietary flexible track arrangements to act as an antifouling measure.

Abstract: The present invention is directed to levelling apparatus, typically as used on tractors, excavators and skid-steer vehicles, and references the levelling assembly and mounting options including directly to the existing blade of vehicles as well as other mounting arrangements. Preferred embodiments of a levelling apparatus include a blade body portion and body mounting portion connected by an arrangement of fixed and adjustable linkages, preferably hydraulic, to allow movement of the blade body portion (relative to the body mounting portion) in substantially an up and down direction, as well as rotational movement about an axis perpendicular to the general plane of an attached blade.

Abstract: The present invention is directed to an impact driver, which relies on multiple connected piston and cylinder assemblies which sequentially fire; a first auxiliary piston assembly charged to compress a compressible fluid with a piston rapidly releases the charge on said piston allowing the compressed fluid, which is typically a gas, to accelerate said auxiliary piston. This auxiliary piston is connected to a second travelling primaty piston assembly which it accelerates. Within the primary piston assembly a primary piston can be charged to compress a compressible fluid. The charge on the primary piston can also be rapidly released to accelerate the primary piston. The primary piston may be connected to a striking element, or successive travelling piston and cylinder assemblies which ultimately connect to a striking element.

Abstract: Comminution apparatus is described which is tailored for the processing of green, soft, and fibrous waste. Inner and outer comminution drums bear projecting macerating features which can progressively interact to provide a shearing action on material on waste within the outer comminution drum. Screening apertures on the outer comminution drum allow for the exit of comminuted material.

Abstract: An information governance system comprising a plurality of classifiers which employ cutoffs for classifying at least a portion of a population of incoming documents as documents to be retained and documents to be discarded in accordance with a corresponding plurality of pre-defined retention schedules; training apparatus for training said classifiers based on relevance inputs provided by a human information governance expert regarding a training set of documents within a universe of documents to be governed; and apparatus operative to automatically cause any classified document to be retained and subsequently discarded in accordance with its pre-defined retention schedule including discarding only documents that (a) have been classified as documents to be discarded and (b) have not been classified as documents to be retained, and to automatically cause any document which could not be classified, to be retained as gray area data until further notice.

Abstract: A rotary flow divider, particularly for use in hydraulic circuits for applications such as dividing the output of a hydraulic pump between several differently (non-equally) loaded devices. Includes a central distributor which channels fluid from the pump to outlet ports, and an outer housing with a plurality of distribution ports (associated with different loaded devices). Repeated alignment and closure of outlet and distribution ports in a sequential type manner distributes fluid to the different devices. Such port alignment and closure is achieved by movement of the distributor and housing relative to each other in a rotational and/or linear manner, though an intermediary moving shutter device or sleeve may be used instead. Such an intermediary shutter device or sleeve may also be configured as a repositionable control sleeve to modify the nature of distribution of fluid when it is secured in different positions.

Abstract: An improved method of shrink fit assembly of two components increases resistance to torsional and/or axial loads without the need for a separate key element. Use of a roughened surface, in combination with a softer deformable material, creates a keyed type interaction at the contact areas of the shrink fitted components. One of the shrink fitted components may include the softer material, though intermediate layers and sleeves can be used.

Abstract: Comminution apparatus is described which is tailored for the processing of green, soft, and fibrous waste. Inner and outer comminution drums bear projecting macerating features which can progressively interact to provide a shearing action on material on waste within the outer comminution drum. Screening apertures on the outer comminution drum allow for the exit of comminuted material.

Abstract: A replaceable tooth arrangement for use in grinding discs such as used in wood hoggers and comminuting equipment. A preferred tooth arrangement includes two end to end adjacent tip portions, or a tip portion end to end with a complementary base portion. The contacting faces of the portions are preferably tapered so that tightening together creates a resultant outward movement which tightens them against the walls of a retaining aperture in a disc or disc section. Alternatively or additionally a connection element interacts with a wedge keeper which causes a similar outward component in the keeper and tip portion, tightening them against the walls of a retaining aperture, as the connection element is tightened.

Abstract: A hogger and reducing apparatus and considers issues associated with fibrous other materials clogging screening apertures A paddle arrangement having an open framework rotates relative to the screening apertures provided on a drum. Either or both the paddle arrangement and drum may rotate, the resultant action increasing agitation of raw material (being reduced in size by a reducing means) in the vicinity of the screening apertures and also providing a wiping type effect to help clear material from within the apertures.