Apparatus for cutting and excavating solids
AssigneeThe University of Queensland
InventorChristopher A. Bunker
Life of this patent
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Abstract
An apparatus for cutting and breaking rock includes a cutting disc (13) having an attached wedge (11). Cutting disc (13) can be rotated by shaft (16) to cut a groove into rock. After a pre-determined distance, wedge (11) is forced into the cut groove to cause the rock above the groove to be broken away. Shaft (16) is powered by a drive motor, and can include a kick back mechanism to prevent wedge (11) from being trapped in the cut groove. The entire apparatus can be mounted to the three point linkage of a tractor.
Claims18
An apparatus for cutting and breaking a solid, the apparatus having a cutting disc with a peripheral edge, a top wall and a bottom wall, a first wedge extending from the top wall, and a second wedge extending from the bottom wall, said first and second wedges being spaced inwardly relative to the peripheral edge of the cutting disc, the peripheral edge being provided with a plurality of cutting picks.
An apparatus for cutting and breaking a solid, the apparatus comprising a member having a centre of rotation and adapted to be mounted for rotation to a shaft, the member having a generally planar main body portion and a peripheral edge, the peripheral edge having a cutting edge adapted to accommodate a plurality of cutting picks, a top of the peripheral edge being raised above the main body portion extending immediately behind the peripheral edge, and at least one wedge located on the main body portion and spaced inwardly relative to the peripheral edge.
An apparatus for cutting and breaking a solid, the apparatus comprising a member having a centre of rotation and adapted to be mounted for rotation to a shaft, the member having a generally planar main body portion and a peripheral edge, the peripheral edge having a cutting edge adapted to accommodate a plurality of cutting picks, the apparatus further having a first wedge extending from a top wall of the main body portion, and a second wedge extending from a bottom wall of the main body portion, the wedges being mounted for rotation relative to the main body portion.
An apparatus for cutting and breaking a solid, the apparatus comprising a member having a centre of rotation and adapted to be mounted for rotation to a shaft, the member having a generally planar main body portion and a peripheral edge, the peripheral edge having a cutting edge adapted to accommodate a plurality of cutting picks, the apparatus further having a wedge located on the main body portion, the wedge being movable between an expanded and a retracted position relative to the main body portion.
Dependencies are inferred from the claim text.