Abstract:
A method for cutting a flexible glass substrate is provided. The method includes directing the flexible glass substrate to a flexible glass cutting apparatus including a laser. The flexible glass substrate includes a first broad surface and a second broad surface that extend laterally between a first edge and a second edge of the flexible glass substrate. A laser beam is directed from the laser onto a region of the flexible glass substrate. A crack is formed through the flexible glass substrate using the laser beam. A local mechanical deformation is formed in the flexible glass substrate using a stress-inducing assembly that includes a stress-inducing feature allowing the flexible glass substrate to deform locally. The crack is propagated along the flexible glass substrate using the laser beam and the local mechanical deformation.
Abstract:
Methods for producing a glass ribbon include the step of drawing a glass ribbon from a quantity of molten glass and detecting an instability in the glass ribbon. In response to the detected instability, the method can further include the step of automatically adjusting an operating variable for each of a plurality of stabilizing elements simultaneously with a controller to at least partially counter the detected instability.
Abstract:
In one embodiment, an angle measurement device for measuring an angle between a web of material and a conveyance direction includes a mounting bracket, a shaft rotatably coupled to the mounting bracket such that the shaft is rotatable with respect to the mounting bracket, a caster portion coupled to a first end of the shaft and positioned to contact a surface of the web of material being drawn over a web conveyance pathway, where the caster portion is spaced apart from an axis of rotation of the shaft, and an angular displacement sensor coupled to the mounting bracket and positioned to detect an angular orientation of the shaft with respect to the mounting bracket, where the angular displacement sensor outputs a signal indicative of the angular orientation of the shaft with respect to the mounting bracket.