GB1269397A - Method and apparatus for perforating helically grooved plastics tubing - Google Patents
Method and apparatus for perforating helically grooved plastics tubingInfo
- Publication number
- GB1269397A GB1269397A GB204670A GB204670A GB1269397A GB 1269397 A GB1269397 A GB 1269397A GB 204670 A GB204670 A GB 204670A GB 204670 A GB204670 A GB 204670A GB 1269397 A GB1269397 A GB 1269397A
- Authority
- GB
- United Kingdom
- Prior art keywords
- blade
- disc
- rotation
- tube
- pin
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B26—HAND CUTTING TOOLS; CUTTING; SEVERING
- B26F—PERFORATING; PUNCHING; CUTTING-OUT; STAMPING-OUT; SEVERING BY MEANS OTHER THAN CUTTING
- B26F1/00—Perforating; Punching; Cutting-out; Stamping-out; Apparatus therefor
- B26F1/0015—Perforating; Punching; Cutting-out; Stamping-out; Apparatus therefor specially adapted for perforating tubes
- B26F1/0061—Perforating; Punching; Cutting-out; Stamping-out; Apparatus therefor specially adapted for perforating tubes whereby the tube moves axially or radially
Landscapes
- Life Sciences & Earth Sciences (AREA)
- Forests & Forestry (AREA)
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Shaping Of Tube Ends By Bending Or Straightening (AREA)
Abstract
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 disposed, with respect to the tubing, piercing pins or blades 21, whereby the pins or blades produce spaced holes due to their reciprocating action. Each pin or blade 21 is mounted in a block 5 radially adjustable for different tube diameters. The block 5 contains a disc 8, beltdriven, having a helical projection 15 for half its periphery and a circumferential projection 24 for its other half, so that during one half rotation of the disc the tube T is axially indexed one pitch length and during the other half-rotation the tube is held stationary. An eccentric pin 16, on the disc 8 and located in a slot 20 in a slide 18, produces corresponding radial movement of the pin or blade 21 to rotation of the disc, the pin or blade entering the tube T during the stationary half-rotation part of the disc rotation. The blade 21 is flat with an inclined curved leading edge 25 and a notch 27 just behind the leading edge so that when the blade is pulled out of the tube T after piercing, the surplus material is removed by the blade.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB3261569 | 1969-06-27 |
Publications (1)
Publication Number | Publication Date |
---|---|
GB1269397A true GB1269397A (en) | 1972-04-06 |
Family
ID=10341378
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB204670A Expired GB1269397A (en) | 1969-06-27 | 1969-06-27 | Method and apparatus for perforating helically grooved plastics tubing |
Country Status (1)
Country | Link |
---|---|
GB (1) | GB1269397A (en) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2383742A1 (en) * | 1977-03-18 | 1978-10-13 | Lupke Gerd Paul Heinrich | APPARATUS AND PROCESS FOR PERFORATING TUBES, AND PROCESS FOR MANUFACTURING PART OF THIS APPARATUS |
US4180357A (en) * | 1977-03-18 | 1979-12-25 | Lupke Gerd Paul Heinrich | Apparatus and method for perforating tubing and method of producing part of such apparatus |
GB2163999A (en) * | 1984-08-15 | 1986-03-12 | Harley Bishop | Pictographic display device |
-
1969
- 1969-06-27 GB GB204670A patent/GB1269397A/en not_active Expired
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2383742A1 (en) * | 1977-03-18 | 1978-10-13 | Lupke Gerd Paul Heinrich | APPARATUS AND PROCESS FOR PERFORATING TUBES, AND PROCESS FOR MANUFACTURING PART OF THIS APPARATUS |
US4180357A (en) * | 1977-03-18 | 1979-12-25 | Lupke Gerd Paul Heinrich | Apparatus and method for perforating tubing and method of producing part of such apparatus |
GB2163999A (en) * | 1984-08-15 | 1986-03-12 | Harley Bishop | Pictographic display device |
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