CRYSTAL SAWING DEVICE Russian patent published in 2000 - IPC

FIELD: sawing of precious stones. SUBSTANCE: device has cantilever arm positioned through spring on moving support of microfeed for lifting and lowering and interacting with floating electric contact through pusher and lever. Left-hand part of cantilever arm is provided with assembly of crystal and photosensor attachment. Crystal and photosensor interact with sawing disc. Right-hand part of cantilever arm is fitted with motor which moves counterweight provided with electric contact and sets force of crystal pressure on sawing disc. Spindle assembly of sawing disc contains sapphire plain bearings. EFFECT: improved sawing technology. 2 dwg