Camming devices
AssigneeWild Country Limited
InventorKevin Brown
Life of this patent
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Abstract
A camming device comprises a stem, one or more spindles mounted on the support, at least two cam members adapted to engage the walls of a crack or hole by their cam profiles pivotally mounted on the spindle or spindles and adapted for opposite pivotal movement from a closed position to an open position, means to apply a force to each cam member to urge it to its open position, means for pivoting the cams to the closed position, characterised in that the stem includes means for movement of at least a major part thereof about an axis other than that of the or of either spindle.
Claims12
A camming device comprising a stem, one or more spindles mounted on the support, at least two cam members adapted to engage the walls of a crack or hole by their cam profiles pivotally mounted on the spindle or spindles and adapted for opposite pivotal movement from a closed position to an open position, means to apply a force to each cam member to urge it to its open position, means for pivoting the cams to the closed position, characterised in that the stem includes means for movement of at least a major part thereof about an axis other than that of the or of either spindle.
A camming device comprising a stem, a single spindle mounted on the stem, at least two cam members adapted to engage the walls of a crack or hole by their cam profiles pivotally mounted on the spindle and adapted for opposite pivotal movement from a closed position to an open position, means to apply a force to each cam member to urge it to its open position, means for pivoting the cams to the closed position, characterised in that the spindle is mounted through an aperture in the stem head that is sufficiently large for limited rocking movement of the stem about the spindle.
A camming device comprising a stem, one or more spindles mounted on the support, at least two cam members adapted to engage the walls of a crack or hole by their cam profiles pivotally mounted on the spindle or spindles and adapted for opposite pivotal movement from a closed position to an open position, means to apply a force to each cam member to urge it to its open position, means for pivoting the cams to the closed position, characterised in that the stem is in the form of a hoop and the hoop is pivotally attached at opposite sides to spindle mounts for movement parallel to the planes of the cams.
Dependencies are inferred from the claim text.