METHOD AND APPARATUS FOR PERFORATING HELICALLY GROOVED PLASTICS TUBING

• Main Authors: DEREK CHARLES LOCKINGTON, GORDON RALPH WOLFE BARRY, THOMAS SMITH, GERALD GARTH WRIGHT
• Format: Patent
• Language: English
• Published: 06.04.1972
• Subjects: CUTTING; CUTTING-OUT; HAND CUTTING TOOLS; PERFORATING; PERFORMING OPERATIONS; PUNCHING; SEVERING; SEVERING BY MEANS OTHER THAN CUTTING; STAMPING-OUT; TRANSPORTING

1,269,397. Cutting sheet material. BOWATER FLEXPIPE Ltd. 25 Sept., 1970 [27 June, 1969; 15 Jan., 1970], Nos. 32615/69 and 2046/70. Heading B4B. [Also in Division F2] Helically grooved plastics tubing T is fed through a piercing station comprising a number of circumferentially spaced and radially dis...