Device to produce round cross-section articles with complicated profiled surfaces

A lathe attachment device to produce a round section article with complicated surfaces, said device comprising:

• a multi-teeth beveled cutter, said cutter having a flat cutting side with the greatest diameter facing a rough portion of said article to be cut, each tooth of said cutter shaped in a generally triangular form and having cutting edge terminated in a pointed end along said cutting side of said cutter,
• a balancing unit having a cutter drive means adapted to rotate said cutter and hold it against said article in a predetermined position,
• a holding means to position said cutter so that its axis of rotation forms small acute angles to the axis of rotation of said article in both horizontal and vertical planes, said angles ranging between 3 and 9 degrees, and
• a moving means to draw said balancing unit along the article, whereby during the cutting process, said teeth each engage said rough portion of said article to be cut mostly laterally thereby significantly reducing the radial load on said article.