Abstract: An apparatus including an accumulator and a drive mechanism. The accumulator includes an energy storage apparatus with a first piston face configured to reversibly compress an energy storage medium and a second piston face forming at least part of an inner surface of a corresponding second fluid chamber reversibly expandable by movement of the second piston face. A third piston face forms at least part of an inner surface of a corresponding third fluid chamber reversibly expandable by the third piston face. The first, second and third piston faces are coupled together.

Abstract: An apparatus including an accumulator and a drive mechanism. The accumulator includes an energy storage apparatus with a first piston face configured to reversibly compress an energy storage medium and a second piston face forming at least part of an inner surface of a corresponding second fluid chamber reversibly expandable by movement of the second piston face. A third piston face forms at least part of an inner surface of a corresponding third fluid chamber reversibly expandable by the third piston face.

Abstract: An apparatus (1) with a reciprocating component (3) fitted with composite cushioning slides (13) on an exterior surface (8, 9). The reciprocating component (3) is movable along a reciprocation path and the composite cushioning slide (13) includes an exterior first layer (14) and an interior second layer (15). The first layer (14) is formed with an exterior surface (16) configured and orientated to come into sliding contact with a containment surface (7) of the apparatus (1) during the reciprocating movement of the reciprocating component (3), the first layer (14) is formed from a material of predetermined friction and/or abrasion resistance properties. The interior second layer (15) is located between the first layer (14) and reciprocating component (3) and is formed from a shock-absorbing material having predetermined shock absorbing properties.

Abstract: A hydraulic accumulator including an energy storage apparatus with a first piston face configured to reversibly compress an energy storage medium and a second piston face forming at least part of an inner surface of a corresponding second fluid chamber reversibly expandable by movement of the second piston face. A third piston face forms at least part of an inner surface of a corresponding third fluid chamber reversibly expandable by the third piston face. The first, second and third piston faces are coupled together.

Abstract: A breaking apparatus (1) with a housing (3), striker pin (4), moveable mass (2) and shock absorber. The striker pin (4) has a driven end and an impact end and a longitudinal axis extending between the two ends. The striker pin (4) is locatable in the housing (3) such that the impact end protrudes from the housing (3). The moveable mass (2) impacts on the driven end of the striker pin (4) and the shock-absorber is coupled to the striker pin (4) by a retainer (8) interposed between a first (7b) and second (7a) shock-absorbing assemblies located internally within the housing (3) along, or parallel to, the striker pin longitudinal axis. The first shock-absorbing assembly (7b) is positioned between the retainer (4) and movable mass (2) and is formed from a plurality of un-bonded layers including at least two elastic layers (12) interleaved by an inelastic layer (13).

Abstract: A breaking apparatus (1) with a housing (3), striker pin (4), moveable mass (2) and shock absorber. The striker pin (4) has a driven end and an impact end and a longitudinal axis extending between the two ends. The striker pin (4) is locatable in the housing (3) such that the impact end protrudes from the housing (3). The moveable mass (2) impacts on the driven end of the striker pin (4) and the shock-absorber is coupled to the striker pin (4) by a retainer (8) interposed between a first (7b) and second (7a) shock-absorbing assemblies located internally within the housing (3) along, or parallel to, the striker pin longitudinal axis. The first shock-absorbing assembly (7b) is positioned between the retainer (4) and movable mass (2) and is formed from a plurality of un-bonded layers including at least two elastic layers (12) interleaved by an inelastic layer (13).

Abstract: An apparatus (1) with a reciprocating component (3) fitted with composite cushioning slides (13) on an exterior surface (8, 9). The reciprocating component (3) is movable along a reciprocation path and the composite cushioning slide (13) includes an exterior first layer (14) and an interior second layer (15). The first layer (14) is formed with an exterior surface (16) configured and orientated to come into sliding contact with a containment surface (7) of the apparatus (1) during the reciprocating movement of the reciprocating component (3), the first layer (14) is formed from a material of predetermined friction and/or abrasion resistance properties. The interior second layer (15) is located between the first layer (14) and reciprocating component (3) and is formed from a shock-absorbing material having predetermined shock absorbing properties.

Abstract: A hydraulic accumulator including an energy storage apparatus with a first piston face configured to reversibly compress an energy storage medium and a second piston face forming at least part of an inner surface of a corresponding second fluid chamber reversibly expandable by movement of the second piston face. A third piston face forms at least part of an inner surface of a corresponding third fluid chamber reversibly expandable by the third piston face. The first, second and third piston faces are coupled together.

Abstract: The present invention relates to a drop hammer assembly including a drop hammer configured with at least two end conditions, characterized in that the position of the end conditions can be reversed when required. Also claimed is a method of reversing the drop hammer with respect to the drop hammer housing.

Abstract: A breaking apparatus (1) with a housing (3), striker pin (4), moveable mass (2) and shock absorber. The striker pin (4) has a driven end and an impact end and a longitudinal axis extending between the two ends. The striker pin (4) is locatable in the housing (3) such that the impact end protrudes from the housing (3). The moveable mass (2) impacts on the driven end of the striker pin (4) and the shock-absorber is coupled to the striker pin (4) by a retainer (8) interposed between a first (7b) and second (7a) shock-absorbing assemblies located internally within the housing (3) along, or parallel to, the striker pin longitudinal axis. The first shock-absorbing assembly (7b) is positioned between the retainer (4) and movable mass (2) and is formed from a plurality of un-bonded layers including at least two elastic layers (12) interleaved by an inelastic layer (13).

Abstract: A breaking apparatus (1) which includes; a housing (3); a striker pin (4) having a driven end and an impact end, locatable in said housing (3) in at least one retaining location to protrude said impact end through the housing (3); a moveable mass (2) for impacting on the driven end of the striker pin (4), and a shock-absorber (7a, b) coupled to the retaining locations. The shock-absorber (1) also includes at least two elastic (12) and at least one inelastic (13) layer in a first shock-absorbing assembly (7a) located internally within the housing about the striker pin (2) between the retaining location and the striker pin impact end. The shock-absorbing assembly (7a) is configured to allow movement of the shock absorber parallel to, or co-axial with the striker pin longitudinal axis during use.

Abstract: A hammer assembly (1) for breaking, levering and raking material, the hammer assembly includes a hammer (1) and an articulated control linkage (3). The hammer includes: a movable mass capable movement along an impact axis (14), an elongated 5 tool (23) having a longitudinal axis substantially parallel or coaxial with the impact axis(4), a primary pivot (6) attachment point for attaching the hammer (1) to a distal end of an operating arm (2) attached to the carrier for pivotal movement of the hammer (1) about a primary axis (6) orthogonal to the impact axis (14). The control linkage (3) includes first (4) and second linkss (5) for effecting pivotal movement of the hammer (1) about the primary axis (6) in response to movement from a drive attached to the operating arm (2).

Abstract: A breaking apparatus (1) including a movable mass (3) for impacting on a striker pin (4), a housing (2) and a striker pin (4) configured to partially protrude through the housing (2), the apparatus (1) characterized in that the striker pin (4) is configured to be beatable in a plurality of retaining locations relative to the housing (2).

Abstract: A breaking apparatus (1) which includes; a housing (3); a striker pin (4) having a driven end and an impact end, locatable in said housing (3) in at least one retaining location to protrude said impact end through the housing (3); a moveable mass (2) for impacting on the driven end of the striker pin (4), and a shock-absorber (7a, b) coupled to the retaining locations. The shock-absorber (1) also includes at least two elastic (12) and at least one inelastic (13) layer in a first shock-absorbing assembly (7a) located internally within the housing about the striker pin (2) between the retaining location and the striker pin impact end. The shock-absorbing assembly (7a) is configured to allow movement of the shock absorber parallel to, or co-axial with the striker pin longitudinal axis during use.

Abstract: A compactor (1) including: a transporter (3); an impact tool (10); a lifting mechanism (9) capable of lifting the impact tool (10) to a raised position; a substantially elongate support mast (2) coupled to the lifting mechanism (9) and capable of supporting the raised impact tool (10), and a mast stabilisation system characterised in that the stabilising system is capable of adjusting the orientation of the support mast (2) to allow the impact tool (10) to descend substantially vertically from said raised position without the transmission of any lateral force by the tool (10) to the support mast (9).

Abstract: An impact hammer (1) for breaking, levering and raking material, the hammer (1) including: a movable mass capable movement along an impact axis (14), an elongated tool (23) having a longitudinal axis substantially parallel or coaxial with the impact axis (14), a primary pivot (6) attachment point for attaching the hammer (1) to a distal end of an operating arm (2) attached to the carrier for pivotal movement of the hammer (1) about a primary axis (6) orthogonal to the impact axis (14); an articulated control linkage (3) including first (4) and second links (5) for effecting pivotal movement of the hammer (1) about the primary axis (6) in response to movement from a drive attached to the operating arm (2), the first link (4) being pivotally attachable: to the hammer (1) at a first end to form a secondary pivot axis (8) parallel to said primary axis (6), at a second end to the drive forming a tertiary pivot point axis (12) and to the second link (5), the second link (5) being pivotally attachable at a first end

Abstract: A breaking apparatus (1) including a movable mass (3) for impacting on a striker pin (4), a housing (2) and a striker pin (4) configured to partially protrude through the housing (2), the apparatus (1) characterised in that the striker pin (4) is configured to be beatable in a plurality of retaining locations relative to the housing (2).

Abstract: The present invention relates to a method of securing a shaft at any point along its substantially vertical axis of movement, wherein the method includes a locking device that is moveable with respect to the shaft. The method is characterised by the step of moving the locking device into a position wherein at least one face of the locking device mates against at least one point on the shaft so as to secure the shaft at any point along its substantially vertical axis of movement. In particular this invention relates to a method of securing a drop hammer at any point along its substantially vertical axis by use of a hydraulically controlled cam.

Abstract: The present invention relates to a powered hammer device including: a hammer with at least a first and a second projection; at least one translation dog adapted to engage with said projections, and a drive mechanism capable of moving the translation dog substantially reciprocally between a first and a second opposed directions, characterised in that the translation dog is adapted to engage with the first projection to move the hammer in the first direction, the translation dog then engaging the second projection to move the hammer in the reciprocal second direction.

Abstract: The invention relates to improvements to rock crushers, and in particular rotary impact rock crushers. The crushing chamber may be angled to achieve the desired rock product. Also disclosed is an anvil for use in crusher whereby the anvil position adjustable. The invention enables the operator to dial up a particular rock product specification by adjusting the angle of the crushing chamber and/or the position of the anvil. The adjustments may be made without ceasing the operation of the machine. Improved control over fracture mechanisms within the crushing chamber and as a consequence the rock product, are achievable with the present invention.