GB653975A - Improvements in or relating to card sensing devices for punching machines - Google Patents
Improvements in or relating to card sensing devices for punching machinesInfo
- Publication number
- GB653975A GB653975A GB20696/48A GB2069648A GB653975A GB 653975 A GB653975 A GB 653975A GB 20696/48 A GB20696/48 A GB 20696/48A GB 2069648 A GB2069648 A GB 2069648A GB 653975 A GB653975 A GB 653975A
- Authority
- GB
- United Kingdom
- Prior art keywords
- pin
- card
- sensing
- magnet
- hole
- 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
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06K—GRAPHICAL DATA READING; PRESENTATION OF DATA; RECORD CARRIERS; HANDLING RECORD CARRIERS
- G06K7/00—Methods or arrangements for sensing record carriers, e.g. for reading patterns
- G06K7/04—Methods or arrangements for sensing record carriers, e.g. for reading patterns by mechanical means, e.g. by pins operating electric contacts
Landscapes
- Engineering & Computer Science (AREA)
- Artificial Intelligence (AREA)
- Computer Vision & Pattern Recognition (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Theoretical Computer Science (AREA)
- Credit Cards Or The Like (AREA)
- Perforating, Stamping-Out Or Severing By Means Other Than Cutting (AREA)
Abstract
653,975. Statistical apparatus. BRITISH TABULATING MACHINE CO., Ltd. Aug. 5, 1948, No. 20696. Convention date, Aug. 14, 1947. [Class 106 (i)] [Also in Group VIII] A card-sensing device for punching-machines comprises a row of sensing-pins 10a located adjacent to a card 10 to be sensed and normally biassed out of contact therewith, a magnet armature 15a connected with each pin, a magnet 24a common to all the armatures and means for energizing the magnet to attract all the armatures and move all the pins towards sensing position, the resulting movement of a pin being greater when there is a hole in the card through which the pin can pass than where there is no such hole. When a pin makes its greater movement on sensing a hole in the card, the armature makes electrical contact with the core 23a of the magnet. Each pin comprises a sleeve 11a in the lower end of which is a tightlywound spring 12a carrying a sensing-point 13a, the end of each pin this being flexible and thereby adapted to yield if struck by the card when the pin is within a hole in the card. Specification 362,529, [Group VIII], is referred to.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US768559A US2490360A (en) | 1947-08-14 | 1947-08-14 | Perforated record sensing device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB653975A true GB653975A (en) | 1951-05-30 |
Family
ID=25082842
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB20696/48A Expired GB653975A (en) | 1947-08-14 | 1948-08-05 | Improvements in or relating to card sensing devices for punching machines |
Country Status (4)
| Country | Link |
|---|---|
| US (1) | US2490360A (en) |
| DE (1) | DE937379C (en) |
| FR (1) | FR969134A (en) |
| GB (1) | GB653975A (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3007636A (en) * | 1961-11-07 | Vossen | ||
| US3059847A (en) * | 1957-09-25 | 1962-10-23 | Gen Time Corp | Data transmission apparatus |
| DE1256926B (en) * | 1964-03-07 | 1967-12-21 | Olympia Werke Ag | Scanning device for perforated recording media |
-
1947
- 1947-08-14 US US768559A patent/US2490360A/en not_active Expired - Lifetime
-
1948
- 1948-07-12 FR FR969134D patent/FR969134A/en not_active Expired
- 1948-08-05 GB GB20696/48A patent/GB653975A/en not_active Expired
-
1950
- 1950-09-29 DE DEI2226A patent/DE937379C/en not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| FR969134A (en) | 1950-12-14 |
| US2490360A (en) | 1949-12-06 |
| DE937379C (en) | 1956-01-05 |
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