Method for forming flat bottom glass beakers

Claim 1

THE METHOD OF SIMULTANEOUSLY PRODUCING A PAIR OF FLAT-BOTTOMED GLASS BEAKERS FROM A SINGLE TUBULAR GLASS BLANK COMPRISING THE STEPS OF ROTATING THE BLANK AND SIMULTANEOUSLY HEATING AN INTERMEDIATE PORTION THEREOF INTO HEAT-SOFTENED CONDITION BY A LINEAL SERIES OF BURNER FIRES, DIRECTING THE FIRES TOWARD THE INTERMEDIATE PORTION OF THE BLANK AT A RIGHT ANGLE TO THE AXIS OF THE BLANK, CONTROLLABLY SEPARATING THE BLANK AT ITS HEATED INTERMEDIATE PORTIONS INTO SEPARATE SECTIONS DURING CONTINUED HEATING AND ROTATION OF THE BLANK, DRAWING THE SEPARATED SECTIONS FULLY APART TO FORM IRREGULAR CLOSED ENDS, AND THEREAFTER MOVING THE SEPARATED SECTIONS AXIALLY TOWARD AND INTO CLOSE PROXIMITY WITH THE RIGHT ANGULARLY DIRECTED BURNER FIRES WHILE CONTINUING ROTATION OF THE SECTIONS TO FORM, SOLELY BY SAID ROTATION AND HEATING, FLAT BOTTOMS ON THE SEPARATED SECTIONS EACH DISPOSED AT A RIGHT ANGLE TO THE AXIS OF EACH SEPARATED SECTION.