(under subclass 98) Subject matter in which the picture carrier plates are attached together or to a common support by one edge and are successively brought into recording or viewing position by successively angularly indexing the individual carriers, as turning the leaves of a book.
(1) Note. The successive action is generally accomplished by bringing a rigid stop against the carrier edge opposite the mounting edge and forcing the stop and carriers past one another the natural resiliency of the carrier or the mounting providing for the successive indexing of the carriers as they are freed from the stop.
