GB1230987A - - Google Patents
Info
- Publication number
- GB1230987A GB1230987A GB1230987DA GB1230987A GB 1230987 A GB1230987 A GB 1230987A GB 1230987D A GB1230987D A GB 1230987DA GB 1230987 A GB1230987 A GB 1230987A
- Authority
- GB
- United Kingdom
- Prior art keywords
- teacher
- trigger
- tube
- console
- student
- 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
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09B—EDUCATIONAL OR DEMONSTRATION APPLIANCES; APPLIANCES FOR TEACHING, OR COMMUNICATING WITH, THE BLIND, DEAF OR MUTE; MODELS; PLANETARIA; GLOBES; MAPS; DIAGRAMS
- G09B7/00—Electrically-operated teaching apparatus or devices working with questions and answers
- G09B7/06—Electrically-operated teaching apparatus or devices working with questions and answers of the multiple-choice answer-type, i.e. where a given question is provided with a series of answers and a choice has to be made from the answers
- G09B7/07—Electrically-operated teaching apparatus or devices working with questions and answers of the multiple-choice answer-type, i.e. where a given question is provided with a series of answers and a choice has to be made from the answers providing for individual presentation of questions to a plurality of student stations
- G09B7/073—Electrically-operated teaching apparatus or devices working with questions and answers of the multiple-choice answer-type, i.e. where a given question is provided with a series of answers and a choice has to be made from the answers providing for individual presentation of questions to a plurality of student stations all student stations being capable of presenting the same questions simultaneously
-
- G—PHYSICS
- G08—SIGNALLING
- G08B—SIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
- G08B5/00—Visible signalling systems, e.g. personal calling systems, remote indication of seats occupied
- G08B5/22—Visible signalling systems, e.g. personal calling systems, remote indication of seats occupied using electric transmission; using electromagnetic transmission
- G08B5/36—Visible signalling systems, e.g. personal calling systems, remote indication of seats occupied using electric transmission; using electromagnetic transmission using visible light sources
Landscapes
- Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- General Physics & Mathematics (AREA)
- Theoretical Computer Science (AREA)
- Electromagnetism (AREA)
- Business, Economics & Management (AREA)
- Educational Administration (AREA)
- Educational Technology (AREA)
- Electrically Operated Instructional Devices (AREA)
Abstract
1,230,987. Visible signalling; educational appliances. J. MORRIS, J. HUTCHINS, J. C. STARKE, and J. A. DAVENPORT. 2 July, 1968 [5 July, 1967], No. 30938/67. Headings G4F and G5G. In a signalling system for use in a class room, each student is provided with a unit 10 having a plurality of push-buttons 20 each connected to the trigger electrode of a respective gas-filled trigger tube 12 on the teacher s console 11. The system may be used for answering multi-choice questions; each student operating the pushbutton corresponding to what he considers to be the correct answer, thus lighting the appropriate trigger tube 12 on the teacher's console 11. The teacher may open one or more switches 19 corresponding to the correct answer so as to feed back a voltage across a resistor 14 in the cathode circuit of the trigger tubes 10 which triggers a further tube 23 on the students' unit 10. Diodes 17 are arranged so as to prevent illumination of tube 23 should a student operate a button 20 corresponding to a closed switch 19 on the teacher's console. The trigger tubes 12, 23 are later extinguished by interrupting the supplies to terminals 13 and 22.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB3093867 | 1967-07-05 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB1230987A true GB1230987A (en) | 1971-05-05 |
Family
ID=10315453
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB1230987D Expired GB1230987A (en) | 1967-07-05 | 1967-07-05 |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB1230987A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2203272A (en) * | 1987-02-25 | 1988-10-12 | Patrick Grattan Foley | New or improved communication system |
-
1967
- 1967-07-05 GB GB1230987D patent/GB1230987A/en not_active Expired
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2203272A (en) * | 1987-02-25 | 1988-10-12 | Patrick Grattan Foley | New or improved communication system |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PS | Patent sealed | ||
| PLNP | Patent lapsed through nonpayment of renewal fees |