| 摘要 |
1,263,562. Sawing. TELEFLEX Inc. 18 March, 1969 [29 March, 1968], No. 14077/69. Heading B5L. [Also in Division B3] A flexible plastics tubular member 10 is formed with an aperture 22 by lowering the temperature of the member to rigidify it and then forming the aperture in the wall of the rigidified member. Cooling can be performed by passing the member through a surrounding blanket 28 to which coolant is supplied. A fluid such water can be supplied to the interior of membe 10. The aperture is formed by a cutter wheel 36. |
