Patent ID: 8776549

Claim:
A device for severing a designated region of a glass ribbon ( 1 ) produced continuously on a conveyor belt ( 11 ), said device comprising: a marking device ( 3 ) for scoring a line ( 12 ) on the continuous glass ribbon which marks the severing location for the designated region of the glass ribbon ( 1 ); a crusher roller ( 6 ) positioned forward of the marking device; at least one moveable lock roller positioned forward of the crusher roller and moveable between a folded up position and a folded away position; a free space between the crusher roller and the at least one moveable lock roller wherein a part ( 10 ) can fall through the free space when the at least one moveable lock roller is in the folded away position; a shearing-off tool ( 5 ) positioned above the free space; and a control unit in operable communication with the shearing-off tool; wherein all positions are in relation to the running direction of the conveyor belt; wherein the control unit controls movement of the shearing-off tool between a starting position above a plane of the conveyor belt ( 11 ) at the crusher roller ( 6 ) and a lowered position at or below the plane to break off a part ( 10 ) of the glass ribbon ( 1 ) by pressing from above onto the part ( 10 ) that protrudes freely past the crusher roller when the scored line ( 12 ) is located in the region of the highest point of the crusher roller ( 6 ); and wherein the at least one moveable lock roller comprises a front lock roller ( 7 ) and a rear lock roller ( 8 ) and at least one of the front and rear lock rollers is moveable downward to the folded away position when the scored line ( 12 ) on the continuous glass ribbon reaches the crusher roller ( 6 ) and return to the folded up position after the glass piece ( 10 ) which is broken off has dropped through the free space.