GB1309623A - Audiovisual educational apparatus - Google Patents
Audiovisual educational apparatusInfo
- Publication number
- GB1309623A GB1309623A GB2588571*A GB2588571A GB1309623A GB 1309623 A GB1309623 A GB 1309623A GB 2588571 A GB2588571 A GB 2588571A GB 1309623 A GB1309623 A GB 1309623A
- Authority
- GB
- United Kingdom
- Prior art keywords
- turntable
- tab
- lever
- wheel
- driving
- 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
- G09B5/00—Electrically-operated educational appliances
- G09B5/06—Electrically-operated educational appliances with both visual and audible presentation of the material to be studied
Landscapes
- Engineering & Computer Science (AREA)
- Business, Economics & Management (AREA)
- Physics & Mathematics (AREA)
- Educational Administration (AREA)
- Educational Technology (AREA)
- General Physics & Mathematics (AREA)
- Theoretical Computer Science (AREA)
- Electrically Operated Instructional Devices (AREA)
- Toys (AREA)
Abstract
1309623 Driving gramophone turntables BORG-WARNER CORP 19 April 1971 [7 April 1970] 25885/71 Heading G5R In an audio-visual teaching apparatus, e.g. of the type described in Specification 1,185,773, the driving means C<SP>1</SP> is disengaged from the turntable P as the latter returns to its home position at the end of a revolution. As shown, the output shaft 220 of an electric motor 87 is in continuous engagement with the rubber-tyred periphery 218 of a wheel 217 and thus drives, through an axle 214, a second rubber-tyred wheel 215 which is urged towards a peripheral flange 89 of the turntable P by a spring 222. A lever 200 having depending tabs 93<SP>1</SP> and 205 is pivoted at 201 to the lower face of the turntable P and its movement relative thereto is limited by a stud 202 projecting from the lever into a slot 203 in the turntable. Momentary withdrawal of a stop 92a<SP>1</SP> from engagement with tab 93<SP>1</SP> allows the turntable to revolve. After one revolution, tab 93<SP>1</SP> strikes the stop 92a<SP>1</SP> again and tab 205 engages a curved tab 206 at one end of a bell-crank lever 207 which is thereby rotated so as to pull a link 212 which withdraws the driving wheel 215 from the turntable flange 89, which is braked by a cam 95 as described in Specification 1,185,773.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US2638070A | 1970-04-07 | 1970-04-07 |
Publications (1)
Publication Number | Publication Date |
---|---|
GB1309623A true GB1309623A (en) | 1973-03-14 |
Family
ID=21831497
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB2588571*A Expired GB1309623A (en) | 1970-04-07 | 1971-04-19 | Audiovisual educational apparatus |
Country Status (3)
Country | Link |
---|---|
US (1) | US3648384A (en) |
CA (1) | CA942494A (en) |
GB (1) | GB1309623A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2474224A1 (en) * | 1980-01-22 | 1981-07-24 | Sony Corp | PLATINUM RECORDER |
Families Citing this family (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2013109976A1 (en) * | 2012-01-20 | 2013-07-25 | Thermal Imaging Radar, LLC | Automated panoramic camera and sensor platform with computer and optional power supply |
US9685896B2 (en) | 2013-04-09 | 2017-06-20 | Thermal Imaging Radar, LLC | Stepper motor control and fire detection system |
US9390604B2 (en) | 2013-04-09 | 2016-07-12 | Thermal Imaging Radar, LLC | Fire detection system |
BR112016002720B1 (en) | 2013-08-09 | 2021-11-23 | Thermal Imaging Radar, LLC | LOCAL SYSTEM AND METHOD FOR ANALYZING AND CLASSIFYING INDIVIDUAL IMAGE FRAMES OF PANORAMIC IMAGE DATA |
WO2016160794A1 (en) | 2015-03-31 | 2016-10-06 | Thermal Imaging Radar, LLC | Setting different background model sensitivities by user defined regions and background filters |
USD776181S1 (en) | 2015-04-06 | 2017-01-10 | Thermal Imaging Radar, LLC | Camera |
US10574886B2 (en) | 2017-11-02 | 2020-02-25 | Thermal Imaging Radar, LLC | Generating panoramic video for video management systems |
US11601605B2 (en) | 2019-11-22 | 2023-03-07 | Thermal Imaging Radar, LLC | Thermal imaging camera device |
Family Cites Families (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US1930286A (en) * | 1930-11-07 | 1933-10-10 | Talk A Print | Educational apparatus |
US3483633A (en) * | 1967-02-13 | 1969-12-16 | Borg Warner | Audiovisual educational apparatus |
US3519276A (en) * | 1968-06-28 | 1970-07-07 | Audiotronics Corp | Phonograph control apparatus |
-
1970
- 1970-04-07 US US26380A patent/US3648384A/en not_active Expired - Lifetime
-
1971
- 1971-03-29 CA CA108,963A patent/CA942494A/en not_active Expired
- 1971-04-19 GB GB2588571*A patent/GB1309623A/en not_active Expired
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2474224A1 (en) * | 1980-01-22 | 1981-07-24 | Sony Corp | PLATINUM RECORDER |
Also Published As
Publication number | Publication date |
---|---|
CA942494A (en) | 1974-02-26 |
US3648384A (en) | 1972-03-14 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
PS | Patent sealed [section 19, patents act 1949] | ||
PCNP | Patent ceased through non-payment of renewal fee |