Apparatus for grinding

摘要

PCT No. PCT/SU87/00009 Sec. 371 Date Sep. 29, 1988 Sec. 102(e) Date Sep. 29, 1988 PCT Filed Jan. 27, 1987 PCT Pub. No. WO88/05343 PCT Pub. Date Jul. 28, 1988.In an apparatus for grinding comprising at least one grinding working member (1) kinematically associated with a drive (6), according to the invention, the working member (1) is made in the form of at least one arc-shaped spiral (2) with a progressive winding, associated with the drive (6) for rotation about its center line (13), the adjacent coils of the working member (1) being contiguous with one another on the inside radius of curvature of the working member (1).