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US 7,681,415 B2Granted
Method and device for melting the ends of rods
AssigneeSchott AG
InventorsJohann Piegendorfer, Martin Zöttl
Life of this patent
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Abstract
The invention relates to a method for treating the ends of glass rods in which glass rods are inserted into receptacles in a carrier and with the carrier are carried past a burner and at least one rail in an advancing direction, the flame of the burner melting at least one end of the glass rods and the glass rods being lifted by the rail in the receptacles and rolling on the rail so that the glass rods are made to rotate during the melting process.
Claims17
A device for treating the ends of glass rods comprising:
- a burner;
- a carrier with receptacles for the insertion of glass rods;
- an advancing device for carrying the carrier past the burner;
- and
- a rail which runs along the carrier and whose upper side runs above the lowest point of the receptacles in the region of the burner in such a way that, as the glass rods which are inserted into the receptacles pass by the flame of the burner they are lifted by the rail by means of the advancing device in the receptacles and roll on the upper side of the rail.
2 more elements
Dependencies are inferred from the claim text.