Sample removing tool
AssigneeRolls-Royce and Associates Limited
InventorKenneth S. Gilmour
Life of this patent
Estimating the term…
Abstract
A sample removing tool comprises two partly spherical blades which are rotatably mounted on a carrier member about parallel axes. The cutting edges of the blades face each other and a portion of the cutting edges are arranged to lie in a nominal circle. The carrier member is rotatably mounted on a support member about an axis, the axis is perpendicular to a plane containing the nominal circle and passes through the center of the nominal circle. The axes of the blades are inclined to the axis of rotation of the carrier member. The blades are rotated about their axes and the carrier member is rotated about its axis such that the cutting edges of the blades move along the circumference of the nominal circle to cut a sample from a surface of a component arranged perpendicular to and intersecting the nominal circle.
Claims15
A sample removing tool for removing a sample from a surface of a component, said tool comprising a first blade having a circular cutting edge, a second blade having a circular cutting edge, carrier means for carrying the first and second blades, and support means for supporting the carrier means,
- the first and second blades being rotatably mounted on the carrier means about first and second axes of rotation respectively, a portion of the cutting edge of the first and second blades being arranged to lie on the circumference of a nominal circle, first drive means to rotate the first and second blades about the first and second axes respectively, the carrier means being rotatably mounted on the support means to rotate about a third axis, second drive means to rotate the carrier means about the third axis, the third axis being perpendicular to a plane containing the nominal circle and passing through the center of the nominal circle, the carrier means having a first side at one axial end of the carrier means and a second side at the other axial end of the carrier means, the first blade being mounted on a first spindle defining the first axis of rotation and extending from the first side of the carrier means and the second blade being mounted on a second spindle defining the second axis of rotation and extending from the second side of the carrier means such that the first and second blades are on opposite sides of the carrier means, the carrier means being inclined such that the first and second spindles are each inclined to said third axis of rotation, said carrier means having a center of rotation and the center of the nominal circle coinciding with the center of rotation of the carrier means, whereby the first and second axes of rotation of the first and second blades respectively are inclined to the third axis such that with the surface of the component being disposed to extend in a plane lying substantially perpendicular to said nominal circle as the carrier means rotates around the third axis, a portion of the cutting edges of each of the first and second blades lies on the circumference of the nominal circle and the cutting edge of the first blade makes a first cut in the surface of the component at an angle to the surface of the component, and the cutting edge of the second blade makes a second cut in the surface of the component at an angle to the surface of the component, the second cut intersecting the first cut to define a substantially V-shaped sample.
A sample removing tool for removing a sample from a surface of a component, said tool comprising a first blade having a circular cutting edge, a second blade having a circular cutting edge, carrier means for carrying the first and second blades, and support means for supporting the carrier means,
- the first and second blades being rotatably mounted on the carrier means about first and second axes of rotation respectively, a portion of the cutting edge of the first and second blades being arranged to lie on the circumference of a nominal circle, drive means to rotate the first and second blades about the first and second axes respectively,
- the carrier means being rotatably mounted on said support means to rotate about a third axis of rotation, second drive means to rotate the carrier means about the third axis, the third axis being perpendicular to a plane containing the nominal circle and passing through the center of the nominal circle, the carrier means having a first side at one axial end of the carrier means and a second side at the other axial end of the carrier means, the carrier means having a first end at one radial end of the carrier means and a second end at the other diametrically opposite radial end of the carrier means relative to the axis of the nominal circle,
- the first and second blades being rotatably mounted on the carrier means at the first and second diametrically opposite radial ends respectively of the carrier means relative to the axis of the nominal circle, the first and second axes of rotation being parallel to each other, the first blade being mounted on a first spindle defining the first axis of rotation and extending from the first side of the carrier means and the second blade being mounted on a second spindle defining the second axis of rotation and extending from the second side of the carrier means such that the first and second blades are on opposite sides of the carrier means,
- the carrier means being inclined such that the first and second spindles are each inclined to said third axis of rotation, said carrier means having a center of rotation and the center of the nominal circle coinciding with the center of rotation of the carrier means,
- whereby the first and second axes of rotation of the first and second blades respectively are inclined to the third axis such that, with the surface of the component being disposed to extend generally in a plane lying substantially perpendicular to said nominal circle as the carrier means rotates around the third axis, a portion of the cutting edges of each of the first and second blades lies on the circumference of the nominal circle and the cutting edge of the first blade makes a first cut in the surface of the component at an angle to the surface of the component and the cutting edge of the second blade makes a second cut in the surface of the component at an angle to the surface of the component, the second cut intersecting the first cut to define a generally V-shaped sample.
Dependencies are inferred from the claim text.