Patent ID: 11969848
Assignee: ESSILOR INTERNATIONAL
Field: Machine tools (Mechanical engineering)
Classification: CPC B | IPC B

Claim 1:
2. The tool as claimed in claim 1, wherein:
for a surface to be worked that is concave, the tool is configured to assume a first concave reference position in which the second transverse end surface (22) of the flexible buffer is pressed against a first concave reference surface (37) that is spherical, concave and of radius of 1500 mm, and also a second concave reference position in which the second transverse end surface (22) of the flexible buffer is pressed against a second concave reference surface (40) that is spherical, concave and of radius of 40 mm; and
for a surface to be worked that is convex, the tool is configured to assume a first convex reference position in which the second transverse end surface (22) of the flexible buffer is pressed against a first convex reference surface (46) that is spherical, convex and of radius of 40 mm, and also a second convex reference position in which the second transverse end surface (22) of the flexible buffer is pressed against a second convex reference surface (47) that is spherical, convex and of radius of 1500 mm.