CONSTRUCTIONAL APPARATUS FOR RECREATIONAL AND/OR EDUCATIONAL AND DISPLAY PURPOSES

摘要

1470898 Display devices; educational devices MOULDED PLASTICS (BIRMINGHAM) Ltd 13 Oct 1975 [25 Oct 1974] 46360/74 Addition to 1442602 Headings G5C and G5G [Also in Division A6] The construction apparatus of Specification 1,442,602, which may be used as a toy or for display, educational, &c. purposes and comprises a stiff, plastics &c. board 1 having a notched periphery 4 defined by a downwardly depending flange 5 and having holes 2 across its top, is modified by the provision of fingerengageable means 9, Fig. 1, to facilitate its being gripped, and by the provision of a radiused or chamfered edge 11, Fig. 2, to its flange 5. As shown, the finger-engageable means 9 consists of semi-circular recesses: alternatively these recesses may be oval, &c. In another form, the finger-engageable means 9 is provided by ribs, projections, &c. The chamber 11 facilitates the assembly of the board 1 to another like board by interdigitation of projections and recesses 5, 6.