GB1376301A - Childrens construction units and an injection moulding process therefor - Google Patents
Childrens construction units and an injection moulding process thereforInfo
- Publication number
- GB1376301A GB1376301A GB88271A GB88271A GB1376301A GB 1376301 A GB1376301 A GB 1376301A GB 88271 A GB88271 A GB 88271A GB 88271 A GB88271 A GB 88271A GB 1376301 A GB1376301 A GB 1376301A
- Authority
- GB
- United Kingdom
- Prior art keywords
- bricks
- cavities
- injection moulding
- spigots
- sockets
- 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
-
- 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
- G09B1/00—Manually or mechanically operated educational appliances using elements forming, or bearing, symbols, signs, pictures, or the like which are arranged or adapted to be arranged in one or more particular ways
- G09B1/32—Manually or mechanically operated educational appliances using elements forming, or bearing, symbols, signs, pictures, or the like which are arranged or adapted to be arranged in one or more particular ways comprising elements to be used without a special support
- G09B1/36—Manually or mechanically operated educational appliances using elements forming, or bearing, symbols, signs, pictures, or the like which are arranged or adapted to be arranged in one or more particular ways comprising elements to be used without a special support the elements being connectible by corresponding projections and recesses
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Computational Mathematics (AREA)
- Pure & Applied Mathematics (AREA)
- Mathematical Optimization (AREA)
- Mathematical Analysis (AREA)
- Mathematical Physics (AREA)
- Theoretical Computer Science (AREA)
- Educational Technology (AREA)
- Educational Administration (AREA)
- Business, Economics & Management (AREA)
- Geometry (AREA)
- Algebra (AREA)
- Toys (AREA)
- Moulds For Moulding Plastics Or The Like (AREA)
Abstract
1376301 Injection moulding E S PERRY Ltd 1 Nov 1971 [7 Jan 1971 18 June 1971] 882/71 and 28818/71 Heading B5A [Also in Divisions A6 and G4-G6] Cubic resilient plastics toy bricks having a spigot on one face, a single plane face, and one socket in each of the remaining faces (see Divisions A5-A6), are moulded in a two-part die 20, 22 made from steel, pre-air hardened and then carbonized, with mould cavities 28, 36 formed by spark erosion. The cavities 28 form the bodies of the bricks, and the cavities 36 the spigots. One fixed pin 32, surrounded by a slidable sleeve 34, projects into each body cavity 28, into each of which three retractible pins 30 (two only shown), are also introduced, the ends of the pins forming the sockets. Cooling water at below 40‹ F. circulates through passages 38. Hot ABS, &c. is injected into the cooled dies and allowed to cool until a rigid skin is formed, when the bricks are ejected into water at near freezing temperature to complete cooling. The bases of the sockets so formed are enlarged, to facilitate the fit of spigots on like bricks.
Priority Applications (7)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB88271A GB1376301A (en) | 1971-01-07 | 1971-01-07 | Childrens construction units and an injection moulding process therefor |
IT3098271A IT940536B (en) | 1971-01-07 | 1971-11-11 | BUILDING UNIT |
FR7141666A FR2120708A5 (en) | 1971-01-07 | 1971-11-22 | |
DE19722200275 DE2200275A1 (en) | 1971-01-07 | 1972-01-04 | Building block and process for its production |
JP462272A JPS5318930B1 (en) | 1971-01-07 | 1972-01-07 | |
JP2753177A JPS53743A (en) | 1971-01-07 | 1977-03-11 | Method of manufacture of assembling toy |
HK7779A HK7779A (en) | 1971-01-07 | 1979-02-15 | Children's construction units and an injection moulding process therefor |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB88271A GB1376301A (en) | 1971-01-07 | 1971-01-07 | Childrens construction units and an injection moulding process therefor |
GB2881871 | 1971-06-18 |
Publications (1)
Publication Number | Publication Date |
---|---|
GB1376301A true GB1376301A (en) | 1974-12-04 |
Family
ID=26236250
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB88271A Expired GB1376301A (en) | 1971-01-07 | 1971-01-07 | Childrens construction units and an injection moulding process therefor |
Country Status (6)
Country | Link |
---|---|
JP (2) | JPS5318930B1 (en) |
DE (1) | DE2200275A1 (en) |
FR (1) | FR2120708A5 (en) |
GB (1) | GB1376301A (en) |
HK (1) | HK7779A (en) |
IT (1) | IT940536B (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5180323A (en) * | 1991-10-29 | 1993-01-19 | Ultimate Manufacturing | Interlocking toy components |
WO2001003791A1 (en) | 1999-07-10 | 2001-01-18 | Kiblo Limited | Toy building blocks |
Families Citing this family (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5864488U (en) * | 1981-10-28 | 1983-04-30 | 株式会社ブンチョウ | creon |
US5683283A (en) * | 1994-03-18 | 1997-11-04 | Ideal Ideas, Inc. | Construction blocks for extended support structures |
CN107731083A (en) * | 2017-11-09 | 2018-02-23 | 重庆溢权科技发展有限公司 | A kind of historical tourism ancient building shows model |
-
1971
- 1971-01-07 GB GB88271A patent/GB1376301A/en not_active Expired
- 1971-11-11 IT IT3098271A patent/IT940536B/en active
- 1971-11-22 FR FR7141666A patent/FR2120708A5/fr not_active Expired
-
1972
- 1972-01-04 DE DE19722200275 patent/DE2200275A1/en active Pending
- 1972-01-07 JP JP462272A patent/JPS5318930B1/ja active Pending
-
1977
- 1977-03-11 JP JP2753177A patent/JPS53743A/en active Pending
-
1979
- 1979-02-15 HK HK7779A patent/HK7779A/en unknown
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5180323A (en) * | 1991-10-29 | 1993-01-19 | Ultimate Manufacturing | Interlocking toy components |
WO2001003791A1 (en) | 1999-07-10 | 2001-01-18 | Kiblo Limited | Toy building blocks |
Also Published As
Publication number | Publication date |
---|---|
IT940536B (en) | 1973-02-20 |
FR2120708A5 (en) | 1972-08-18 |
JPS5318930B1 (en) | 1978-06-17 |
DE2200275A1 (en) | 1972-07-27 |
JPS53743A (en) | 1978-01-06 |
HK7779A (en) | 1979-02-23 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
PS | Patent sealed | ||
PE20 | Patent expired after termination of 20 years |