Abstract: This invention relates to a gate type tentering clip with pivotally mounted jaw in which the jaw is provided with a new and novel pivoting movement.

Abstract: This invention relates to tenter frames and more particularly to a tenter rail provided with a gap crossing mechanism whereby the tenter clip engaging surfaces of the tenter guide rails, at the rail joints, are smooth for the gentle passage of the tenter clips arranged in a chain.

Abstract: This invention relates to tenter frames and more particularly to a tenter rail provided with a gap crossing mechanism whereby the tenter clip engaging surfaces of the tenter guide rails, at the rail joints, are smooth for the gentle passage of the tenter clips arranged in a chain.

Abstract: This invention relates to tenter frames and more particularly to a tenter rail provided with a gap crossing mechanism whereby the tenter clip engaging surfaces of the tenter guide rails, at the rail joints, are smooth for the gentle passage of the tenter clips arranged in a chain.

Abstract: The invention comprises a process and apparatus for applying conductive heat to plastic film tapes in a stabilizing unit containing a plurality of rollers forming sets of rollers. Each roller in the set rotates progressively slower than the preceding adjacent roller. Some rollers have heated surfaces to reheat and heat soften the plastic film. Some rollers have cold surfaces to set the film. The progressively slower rotation of the rollers allows the film to release the stresses imparted to the film during the initial stretching operation. In so doing, the molecules rearrange themselves to provide an increased degree of tensile strength in the tapes. The reheating of the film causes shrinkage. However, the progressively slower rotation of adjacent rollers controls the degree of shrinkage and holds the shrinkage to a minimum.