GB619178A - Improvements in and relating to punching tools - Google Patents
Improvements in and relating to punching toolsInfo
- Publication number
- GB619178A GB619178A GB3489746A GB3489746A GB619178A GB 619178 A GB619178 A GB 619178A GB 3489746 A GB3489746 A GB 3489746A GB 3489746 A GB3489746 A GB 3489746A GB 619178 A GB619178 A GB 619178A
- Authority
- GB
- United Kingdom
- Prior art keywords
- relating
- punch
- die
- punching tools
- screw
- 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
- B21D28/34—Perforating tools; Die holders
- B21D28/343—Draw punches
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Perforating, Stamping-Out Or Severing By Means Other Than Cutting (AREA)
Abstract
619,178. Punching. SOMPER, H. R. Nov. 25, 1946, Nos. 34897/46 and 21011/47. [Class 83 (iv)] Punches and dies.- In a device for punching holes in sheets, a punch 11 and a die 10 are positioned on opposite sides of the sheet 13 and are drawn together by a screw 12. The punch is cylindrically recessed to provide two cutting points 10a, and the die is provided with a hole 10c to enable the waste to be ejected. The screw is turned by a tool engaging a recess in the head.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB3489746A GB619178A (en) | 1946-11-25 | 1946-11-25 | Improvements in and relating to punching tools |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB3489746A GB619178A (en) | 1946-11-25 | 1946-11-25 | Improvements in and relating to punching tools |
Publications (1)
Publication Number | Publication Date |
---|---|
GB619178A true GB619178A (en) | 1949-03-04 |
Family
ID=10371264
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB3489746A Expired GB619178A (en) | 1946-11-25 | 1946-11-25 | Improvements in and relating to punching tools |
Country Status (1)
Country | Link |
---|---|
GB (1) | GB619178A (en) |
-
1946
- 1946-11-25 GB GB3489746A patent/GB619178A/en not_active Expired
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