Patent ID: 6761047
Filing Date: 2004-07-13
Classification: C03B

Abstract:
An apparatus for melting off a glass part from a hollow glass body to form non-circular as well as circular cut surfaces, said apparatus comprisinga burner device (3,3â€²;13a, 13b) including a first group (13a) of individual burner sections (3) connected pivotably with each other and a second group (13b) of individual burner sections (3) connected pivotably with each other but separately from said burner sections of said first group, said burner sections (3) being provided with respective nozzles (3â€²) arranged in a common cutting plane (12) so that the hollow glass object (1) with the glass part to be melted off is positionable with the burner sections arranged around the hollow glass object (1) with the nozzles pointing at the hollow glass object in a direction in the common cutting plane (12); holding and rotating means (2) for holding and for rotating the hollow glass object (1) in relation to the burner sections (3) positionable around said hollow glass object (1); control means (4a, 4b, 5, 5â€², 6) for arranging and maintaining said nozzles (3â€²) of said burner sections (3) at a constant distance in the cutting plane (12) from an exterior surface of the hollow glass object (1) while said hollow glass object (1) is rotated by said holding and rotating means (2); and two half frames (9a,9b) pivotable toward and away from each other, said first group (13a) of said burner sections (3) being mounted on one (9a) of said half frames and said second group (13b) of said burner sections (3) being mounted on another (9b) of said half frames, whereby said first group of said burner sections and said second group of said burner sections are pivotable away from each other so that the hollow glass object (1) is easily mounted on or removed from said holding and rotating means (2).