Abstract: A system for selectively dispensing and/or mixing or otherwise utilizing materials contained in respective storage tanks, including a material conveyance means, such as a pump, and a specialized selector valve programmably controllable to supply the materials to one or more processing containers in desired quantities and in a desired sequence.

Abstract: A game simulating a sport such as football employs film sequences of plays of an actual game, using cassettes of film of equal length regularly disposed sequences. A sequence selecting apparatus and projector projects a given sequence determined by the selection of cassettes by one player and selection of sequence by another player. The apparatus employs a take-up reel upon which the film is wound before play to align the beginning of a sequence with an optical projection system, and spiral groove control device coupled to the reel for controlling the rotation of the reel to effect the projection of a single sequence. The optical system projects through apertures in the film cassette, and the shutter is operated by a sprocket coupled to the film.