Abstract: Bulb edges of a glass sheet severed from a glass ribbon, i.e., lehr ends are removed by imposing a pair of scores in the bulb edge with the score closest to the edge of the lehr end deeper than the other score. The surface of a resilient member lying in a plane subtending an oblique angle with the sheet is moved downward against the bulb edge to sequentially sever the bulb edge at the first and second scores.

Abstract: Method and apparatus for partitioning and/or shaping a fibrous batt by gripping the batt along adjacent lines with resilient means gripping one surface and non-resilient means gripping the opposite surface and displacing said lines with respect to each other to separate the batt without compacting the parted edges of the batt.

Abstract: Rectangularly shaped snapstrates are separated into substrates along kerfs that are parallel to edges thereof by belt and roller flexure forces produced by two belts that are caused to be contiguous over the suspended length of the upper belt by a pressure roller forcing the two belts together at an intermediate point between roller supports for the belts. This produces oppositely facing curvatures in the belts at spaced apart transverse lines thereon which flex snapstrates in opposite directions with a flexure force which is sufficient to separate snapstrates on the lower belt with kerfs facing in the right direction and which is not sufficient to separate snapstrates there with kerfs facing in the wrong direction. In an alternate embodiment, the peripheries of rollers are tapered in vertical sections for separating snapstrates along kerfs oriented at right angles. In a further embodiment, only a single belt with a pressure roller pressing down on it is employed to separate snapstrates.

Abstract: Score lines or fracture lines in a glass sheet are opened by advancing the glass sheet along an article movement path into a snapping station with the score lines to be opened extending between the leading and trailing edge of the sheet as it moves along the article movement path. A moving bending moment is applied to the glass sheet along a path transverse to the article movement path. In one embodiment, the bending moment is applied to the glass sheet by a pair of spaced rotatably mounted wheels urging the sheet in a first direction as a rotatably mounted wheel urges the sheet in a second opposite direction.

Abstract: Glass snapping apparatus comprises a plurality of conveyors diverging away from each other in the direction of advance, lifting means for raising the trailing edge of the sheet above the leading edge and for imposing on the trailing edge a bending moment sufficient to snap the sheet along any score line parallel to the direction of advance of the sheet.

Abstract: A slitting machine for longitudinally slitting sheet tinplate to form blanks for can bodies has two parallel horizontal shafts carrying cutter rolls conventionally arranged in pairs of overlapping rolls so as by a shearing action to slit the sheet tinplate driven to pass between the shafts. The shafts also carry further rolls which may be identical to the cutter rolls but are of a smaller diameter. Like the cutter rolls, these further rolls are arranged in pairs; however, by virtue of their smaller diameter they have a small radial clearance. By partially shearing the tinplate they therefore form the tinplate with lines of weakness parallel to the lines of slitting simultaneously made by the cutter rolls. To accommodate the machine to different thicknesses of tinplate the shaft spacing may be adjustable and/or the rolls may be readily removable for replacement by similar rolls of a different diameter.

Abstract: Score lines or fracture lines in a glass sheet are opened by advancing the glass sheet along an article movement path into a snapping station with the score lines to be opened extending between the leading and trailing edge of the sheet as it moves along the article movement path. A moving bending moment is applied to the glass sheet along a path transverse to the article movement path. In one embodiment, the bending moment is applied to the glass sheet by a pair of spaced rotatably mounted wheels urging the sheet in a first direction as a rotatably mounted wheel urges the sheet in a second opposite direction.

Abstract: Flat glass advancing along a conveyor in the form of a continuous ribbon or individual sheets, is broken into cullet by applying breaking loads to the glass which put breaking stresses into the glass simultaneously about two axes which are substantially orthogonal to one another.

Abstract: A process for automatically removing edge portions from a glass sheet comprises scoring a line of cut on a first surface of the sheet between the edge portion and the remainder of the sheet, hammering the second surface of the sheet along a path opposite the score line to initiate breakage and applying a bending force transverse to this line to the sheet at a predetermined distance from one of its ends to initiate breakage. The process is applicable to long ribbons of glass or to glass volumes having a given length and edge portions of inferior quality may be removed simultaneously from both sides of the sheet.

Abstract: A glass cutting tool having arms offset from the head portion of the tool and engageable with the sides of a tubular workpiece. A cutting element on the tool head is constrained for linear passage along the workpiece by at least one of the arms. Provision is made for extension or retraction of the arms relative to the tool head while additional provision is made for varying the effective distance between an arm and the cutting element. A method is also disclosed for the cutting of glass tubes.

Abstract: A web of fibers is continuously fed between a rotating tearing apparatus where the web is torn into sections without causing compression of the fibers at the tear line. The tearing apparatus is comprised of two opposed rotating pairs of web holding means or jaws which receive and engage the web. To tear the web, the leading jaw of each pair is angularly displaced away from the corresponding trailing jaw and then returned to a juxtaposed position relative to the trailing jaw. Preferably the jaws are provided with arcuate working surfaces which may be tipped with a resilient material to increase jaw life and to improve the holding characteristics thereof for webs of contoured cross section.