GEOMETRY EDUCATION DEVICE Russian patent published in 1997 - IPC

FIELD: education. SUBSTANCE: device has base with rack which holds investigated object and combs. Base has restoring plate and holes with pins. Investigated object is designed as set of rings which have grooves which ends are rigidly attached to restoring plate. In addition grooves contain flexible cords which stand for parallels and meridians of investigated object. Restoring plate is mounted for contact to pins which provide shape for plate. Combs are designed as two symmetric halves which follows curve cross-section and are connected to each other by means of magnetic lathes. EFFECT: increased functional capabilities. 3 dwg