GB588855A - Improvements in or relating to docket cards - Google Patents
Improvements in or relating to docket cardsInfo
- Publication number
- GB588855A GB588855A GB283445A GB283445A GB588855A GB 588855 A GB588855 A GB 588855A GB 283445 A GB283445 A GB 283445A GB 283445 A GB283445 A GB 283445A GB 588855 A GB588855 A GB 588855A
- Authority
- GB
- United Kingdom
- Prior art keywords
- cards
- perforations
- needle
- triangular
- docket
- 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
- G06K21/00—Information retrieval from punched cards designed for manual use or handling by machine; Apparatus for handling such cards, e.g. marking or correcting
- G06K21/04—Information retrieval from punched cards designed for manual use or handling by machine; Apparatus for handling such cards, e.g. marking or correcting in which coincidence of markings is sensed optically, e.g. peek-a-boo system
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Theoretical Computer Science (AREA)
- Perforating, Stamping-Out Or Severing By Means Other Than Cutting (AREA)
Abstract
588,855. Statistical apparatus. MUSSARED. A. H. Feb. 5, 1945, No. 2834. [Class 106 (i)] Docket cards of the type in which selected perforations along their edges are opened out to the'edge by a punch or the like so as to, represent data on the cards which are then sorted by passing a needle through selected perforations, have triangular perforations, the apices of the triangles being nearest the edge of the card. Slightly inaccurate positioning of the opening-cut punch at a triangular hole (Fig. 6) causes a slot which does not tend to cause the card to hang on the needle as with a circular hole (Fig. 1). A sorting needle of rectangular cross-section, with rounded ends (Fig. 4) may be used with the triangular perforations which may be staggered (Fig. 3).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB283445A GB588855A (en) | 1945-02-05 | 1945-02-05 | Improvements in or relating to docket cards |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB283445A GB588855A (en) | 1945-02-05 | 1945-02-05 | Improvements in or relating to docket cards |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB588855A true GB588855A (en) | 1947-06-04 |
Family
ID=9746815
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB283445A Expired GB588855A (en) | 1945-02-05 | 1945-02-05 | Improvements in or relating to docket cards |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB588855A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2968521A (en) * | 1961-01-17 | gross |
-
1945
- 1945-02-05 GB GB283445A patent/GB588855A/en not_active Expired
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2968521A (en) * | 1961-01-17 | gross |
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