Separation apparatuses for separating sheets of brittle material and methods for separating sheets of brittle material

A method for separating a glass substrate, the method comprising:

• conveying a continuous scored glass ribbon on a conveyance pathway in a conveyance direction;
• directing the continuous scored glass ribbon between a first separation cam and a second separation cam positioned downstream of the first separation cam in the conveyance direction, wherein the first separation cam and the second separation cam are on opposite sides of a centerline of the conveyance pathway;
• rotating the first separation cam such that at least a portion of a contact face of the first separation cam is periodically positioned across the centerline of the conveyance pathway and the contact face of the first separation cam periodically contacts a first surface of the continuous scored glass ribbon and displaces at least a portion of the continuous scored glass ribbon from the centerline of the conveyance pathway in a first displacement direction;
• rotating the second separation cam simultaneously with the first separation cam such that at least a portion of a contact face of the second separation cam is periodically positioned across a centerline of the conveyance pathway and the contact face of the second separation cam periodically contacts a second surface of the continuous scored glass ribbon and displaces at least a portion of the continuous scored glass ribbon from the centerline of the conveyance pathway in a second displacement direction opposite the first displacement direction;
• and
• wherein a simultaneous displacement of the continuous scored glass ribbon in the first displacement direction and the second displacement direction separates the continuous scored glass ribbon along a vent of the continuous scored glass ribbon.

A method for forming a glass substrate comprising:

• drawing a continuous glass ribbon in a substantially vertical direction from a forming apparatus;
• scoring the continuous glass ribbon to form a vent as the continuous glass ribbon is drawn in the substantially vertical direction to form a continuous scored glass ribbon;
• displacing, periodically, a first portion of the continuous scored glass ribbon in a first direction which is non-parallel with the substantially vertical direction as the continuous scored glass ribbon is drawn in the substantially vertical direction;
• displacing, periodically, a second portion of the continuous scored glass ribbon in a second direction opposite the first direction as the continuous scored glass ribbon is drawn in the substantially vertical direction, wherein:
• the second portion of the continuous scored glass ribbon is downstream of the first portion of the continuous scored glass ribbon;
• and
• the second portion of the continuous scored glass ribbon is displaced simultaneously with the first portion of the continuous scored glass ribbon such that a glass substrate is separated from the continuous scored glass ribbon along the vent.