Abstract: A power supply system which includes packaging and containing means for retaining a plurality of individual power sources therein, wherein the power sources are positively retained both laterally and longitudinally and are electrically connected to one another and are arranged to be connected to a circuit. A pair of deformable end plates having electrical contacts thereon are provided and longitudinal connectors are provided between the plates. The plate members have interconnecting circuitry elements thereon with a plurality of connecting rods and placement rods located between the plates to positively hold the batteries between the plates, which rods are provided with locating elements laterally thereof for positively holding the individual batteries in electrical contact between themselves and the plate members. The battery or power pack system is designed for utilization in various portable units wherein a long lasting power supply is desirable.

Abstract: A device for holding film strips and the like in proper position on spiral reels or the like such that the film will be held onto the reel in proper spaced relation to permit the flow of the developer about the film for development thereof. The device includes a longitudinally extending body having a transverse dimension which will permit the device to extend across the width of the film and thus the corresponding spiral reel to contact the edges of the film and hold the same against the spirally formed elements of the reel. The device is designed to lock into the reel between the spiral elements thereof and may be used for full or partial strips of film.