GB1235372A - Apparatus for perforating sheet material and process for making such apparatus - Google Patents
Apparatus for perforating sheet material and process for making such apparatusInfo
- Publication number
- GB1235372A GB1235372A GB1357368A GB1357368A GB1235372A GB 1235372 A GB1235372 A GB 1235372A GB 1357368 A GB1357368 A GB 1357368A GB 1357368 A GB1357368 A GB 1357368A GB 1235372 A GB1235372 A GB 1235372A
- Authority
- GB
- United Kingdom
- Prior art keywords
- pin
- roller
- hole
- pins
- thin
- 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
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D28/00—Shaping by press-cutting; Perforating
- B21D28/24—Perforating, i.e. punching holes
- B21D28/36—Perforating, i.e. punching holes using rotatable work or tool holders
-
- 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
- B26F1/02—Perforating by punching, e.g. with relatively-reciprocating punch and bed
- B26F1/14—Punching tools; Punching dies
Abstract
1,235,372. Perforating apparatus. U. J. PRIOR. 20 May, 1968, No. 13573/68. Heading B4B. [Also in Division B3] In apparatus for perforating thin sheets of material, e.g. sheets of postage stamps comprising rotating pin and pin-hole rollers 2, 1, the pin-hole roller 1 having openings 9, 12 communicating with an apertured cavity 10 for removing scrap, and the diameter of the openings 9 being greater than that of the pins P, at least part of the surface of the pin-hole roller is covered by an element which is perforated by the pins upon initial operation of the apparatus. In one example, the cover element is a thin sheet 8 of metal covering a sector of the surface 60 of the pin-hole roller. The thickness of the metal sheet is from 0À08 to 0À1 mm. In another example, the element is a thin galvanic coating overlying the surface of the pin-hole roller entirely. The coating has a minimum thickness of 0À05 mm. and may consist of nickel or copper and be electrodeposited. To enable pins to be replaced when broken or worn, the pin roller 2 comprises perforated halves 20, 30 bolted together and two tightening rings 35.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB1357368A GB1235372A (en) | 1968-05-20 | 1968-05-20 | Apparatus for perforating sheet material and process for making such apparatus |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB1357368A GB1235372A (en) | 1968-05-20 | 1968-05-20 | Apparatus for perforating sheet material and process for making such apparatus |
Publications (1)
Publication Number | Publication Date |
---|---|
GB1235372A true GB1235372A (en) | 1971-06-16 |
Family
ID=10025405
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB1357368A Expired GB1235372A (en) | 1968-05-20 | 1968-05-20 | Apparatus for perforating sheet material and process for making such apparatus |
Country Status (1)
Country | Link |
---|---|
GB (1) | GB1235372A (en) |
Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4656900A (en) * | 1985-11-15 | 1987-04-14 | Mobil Oil Corporation | Rotary tube punching arrangement and method for punching holes into a moving web material |
US5555786A (en) * | 1993-01-22 | 1996-09-17 | Magnaflex Systems Limited | Rotary press cutters |
US6032565A (en) | 1994-05-17 | 2000-03-07 | Best Cutting Die Company | Multi-use rotary die plate system |
US6076444A (en) | 1997-08-01 | 2000-06-20 | Best Cutting Die Company | Panel cutting apparatus with selectable matrices for vacuum and air |
US6532854B2 (en) | 1994-01-21 | 2003-03-18 | Best Cutting Die Company | Cutting die clamping mechanism |
-
1968
- 1968-05-20 GB GB1357368A patent/GB1235372A/en not_active Expired
Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4656900A (en) * | 1985-11-15 | 1987-04-14 | Mobil Oil Corporation | Rotary tube punching arrangement and method for punching holes into a moving web material |
US5555786A (en) * | 1993-01-22 | 1996-09-17 | Magnaflex Systems Limited | Rotary press cutters |
US6532854B2 (en) | 1994-01-21 | 2003-03-18 | Best Cutting Die Company | Cutting die clamping mechanism |
US6032565A (en) | 1994-05-17 | 2000-03-07 | Best Cutting Die Company | Multi-use rotary die plate system |
US6076444A (en) | 1997-08-01 | 2000-06-20 | Best Cutting Die Company | Panel cutting apparatus with selectable matrices for vacuum and air |
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