GB673326A - Improvements in or relating to instructional or educational apparatus - Google Patents
Improvements in or relating to instructional or educational apparatusInfo
- Publication number
- GB673326A GB673326A GB1102149A GB1102149A GB673326A GB 673326 A GB673326 A GB 673326A GB 1102149 A GB1102149 A GB 1102149A GB 1102149 A GB1102149 A GB 1102149A GB 673326 A GB673326 A GB 673326A
- Authority
- GB
- United Kingdom
- Prior art keywords
- panels
- projection
- base
- plane
- panel
- 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
- G09B23/00—Models for scientific, medical, or mathematical purposes, e.g. full-sized devices for demonstration purposes
- G09B23/02—Models for scientific, medical, or mathematical purposes, e.g. full-sized devices for demonstration purposes for mathematics
- G09B23/04—Models for scientific, medical, or mathematical purposes, e.g. full-sized devices for demonstration purposes for mathematics for geometry, trigonometry, projection or perspective
Abstract
673,326. Appliances for teaching drawing and geometry. MURRAY, G. L. April 24, 1950 [April 26, 1949], No. 11021/49. Classes 11 and 146 (ii). Instructional or educational apparatus for demonstrating three dimensional geometry and methods of projection comprises a rectangular member 2 to adjacent edges of which further members 1, 3 are hinged, each member representing a different plane and bearing a view of an object 4 appropriate to the positions of the planes in their three dimensional association, such members being capable of being opened out into a single plane to represent a sheet of paper showing the correct positions of the respective views. In the example the object or model 4 comprises a rectangular parallelopiped having circular-, triangular-, and square-section projections 4a, 4b and 4c respectively. The base panel 1 bears a plan 5, the back panel 2 a front elevation 6 and the right-hand end panel 3 an end view 7 (looking on the triangular projection 4b) of the object. When opened out into the plane of the base 1, the three panels 1, 2, 3 represent first angle or English projection. A further three panels 11, 12, 13 bear views corresponding to those on the panels 1, 2, 3 respectively and are hinged together to open out into the plane of the top panel 11. They represent third angle or American projection. Four rods 10 are mounted in the base 1 and the top panel is removably mounted on reduced upper extensions 10a thereof. Preferably the panels 1, 2, 3 are opaque and the panels 11, 12, 13 transparent, but all six may be the same. The views may be permanently inscribed or printed on the panels or they may comprise prints fixed to but readily removable from the panels for exchange with another set appropriate to a different object or model 4. The model 4 is carried on a stem 21 received in an aperture in the base.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB1102149A GB673326A (en) | 1949-04-26 | 1949-04-26 | Improvements in or relating to instructional or educational apparatus |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB1102149A GB673326A (en) | 1949-04-26 | 1949-04-26 | Improvements in or relating to instructional or educational apparatus |
Publications (1)
Publication Number | Publication Date |
---|---|
GB673326A true GB673326A (en) | 1952-06-04 |
Family
ID=9978601
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB1102149A Expired GB673326A (en) | 1949-04-26 | 1949-04-26 | Improvements in or relating to instructional or educational apparatus |
Country Status (1)
Country | Link |
---|---|
GB (1) | GB673326A (en) |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2718072A (en) * | 1954-06-01 | 1955-09-20 | Jr Thomas J Douglass | Educational device |
US2977688A (en) * | 1959-10-05 | 1961-04-04 | Redey George | Educational cubic toy device |
US3055120A (en) * | 1961-08-03 | 1962-09-25 | Stanley R Scott | Geometry projection device |
US5720615A (en) * | 1996-09-20 | 1998-02-24 | Redey; George | Educational device for aiding in the projection of views of an object |
-
1949
- 1949-04-26 GB GB1102149A patent/GB673326A/en not_active Expired
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2718072A (en) * | 1954-06-01 | 1955-09-20 | Jr Thomas J Douglass | Educational device |
US2977688A (en) * | 1959-10-05 | 1961-04-04 | Redey George | Educational cubic toy device |
US3055120A (en) * | 1961-08-03 | 1962-09-25 | Stanley R Scott | Geometry projection device |
US5720615A (en) * | 1996-09-20 | 1998-02-24 | Redey; George | Educational device for aiding in the projection of views of an object |
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