Motion simulating presentation system for advertising and teaching - uses individual images with U=shaped recesses fitting over cylindrical lugs in holder of two half-shells

摘要

The visual presentation system contains a large number of individual picture frames secured between two cylindrical hoops (7) inside a cylindrical shell, in which the moving effect is obtained by flicking through the frames. Each frame card has two recesses (3) for simple location on the hoops. The visual aid can be used to demonstrate a product for sale, or a process. The cards can be readily replaced, thus providing different effects. The system is secured by a large central hollow shaft (9) and the start of the sequence is located by a large moulded radial rib (12).