Patent ID: 7476355

Claim:
A method of forming plastic articles by blow molding comprising the steps of molding preforms on a plurality of mold cores while maintaining the mold cores in a first spacing between the mold cores, spreading the mold cores with the preforms thereon farther apart to a second increased spacing, and blow molding the plastic articles from the preforms on said mold cores while maintaining the mold cores at said second increased spacing, wherein said mold cores are movably supported on a mold core holder having a track and a wing pivoted on each end of said track, pivoting the wings to positions overlying the track and supporting the mold cores on said track in said first spacing during the molding of the preforms on the mold cores, and thereafter pivoting the wings to positions extending from the ends of the track and supporting the mold cores on said track and on said wings in said second spacing during the blow molding of the plastic articles.