Multiple gob shearing mechanism operating in a straight line
AssigneeOwens-Illinois, Inc.
InventorEustace H. Mumford
Life of this patent
Estimating the term…
Abstract
A multiple gob glass shearing mechanism in which the sets of opposed shear blades are supported for movement toward and away from each other in a straight line or with parallel motion. One set of shears is mounted on a shear guide that can be adjusted up or down relative to the holder of the opposed set of shears. This adjustment is for the purpose of adjusting the tension on all the sets of blades simultaneously and can be affected when the shears are in operation. The drive for the shears may be unlatched for safety purposes when out of position and when put back into operation the shear blades will not close unless the latch is refastened.
Claims13
Apparatus for shearing multiple streams of molten glass into gobs, comprising a feeder bowl having a plurality of inline orifices in the bottom thereof, a vertical support shaft, means for mounting said support shaft to the side of said feeder bowl, a shear blade supporting carriage cantilevered from said vertical support shaft, said carriage extending normal to the line of said orifices, at one side thereof, a first pair of parallel, horizontal shafts extending in the direction of said carriage, a first shear blade arm movably supported for reciprocation on said first pair of shafts, a second pair of parallel, horizontal shafts in generally coaxial alignment with said first pair of shafts, a second shear blade arm movably supported for reciprocation on said second pair of shafts, means connected to said second pair of shafts for raising or lowering the axes of said second pair of shafts in unison, and drive means connected to said arms for moving said arms toward and away from each other to affect the shearing of the glass streams.
Dependencies are inferred from the claim text.