Grinding device and method

A grinding process for a grinding machine having a pair of spaced grinding spindles each of which can carry a grinding wheel so that articles to be ground may be moved between and engaged by an abrasive means carried each such grinding spindle and have respective sides of each such article ground thereby;

• comprising:
• (a) forming each grinding wheel with a rim having a rim surface disposed in a plane substantially parallel to the plane of the surface on the article to be ground;
• (b) securing to each said rim surface of each said grinding wheel a plurality of abrasive pieces in an array such that a predetermined portion of the area of each such rim surface is covered by an abrasive piece;
• (c) securing each said grinding wheel to grinding wheel spindle;
• (d) advancing the grinding wheel spindles towards each other and into engagement with opposed surface of the article to be ground and rotating said grinding wheel spindles and grinding wheels and grinding the opposed surfaces of the article to be ground by a predetermined amount;
• and
• (e) passing a fluid about and over said abrasive pieces and about and over the surfaces being ground.

A grinding wheel;

• comprising:
• (a) a disk-like base for mounting the grinding wheel;
• (b) a rim extending from said disk-like base and having a rim surface of predetermined width;
• (c) a plurality of abrasive pieces carried by said rim surface;
• (d) said abrasive pieces each having a width substantially the same as said predetermined width of said rim surface, and each being secured to said rim surface to form an array of abrasive pieces carried by said rim surface so that the width of each such abrasive piece is disposed to correspond to the width of said rim surface and so that said abrasive pieces are disposed along said rim surface with a predetermined spacing therebetween all so as that said array of abrasive pieces covers a predetermined amount of said rim surface.