Abstract: An apparatus for loading and unloading a tape cartridge, particularly an IBM 3480 tape cartridge, has a loading rack for receiving the tape cartridge along one of its side edges, so that what is normally considered to be the rear edge of the tape cartridge is laterally received within the loading/unloading mechanism, and equipment for properly interacting with the tape cartridge in this modified orientation for engagement of the leader block of the tape cartridge so that the tape cartridge is then ready for loading into the transport apparatus and for detection of the condition of the tape cartridge within the apparatus.

Abstract: Paper coating compositions contain at least one pigment, at least one binder, and as an insolubilizer for the binder an alkylated product of the reaction of glyoxal and a cyclic urea.

Abstract: Card feeding apparatus for feeding the lowermost card from a stack of cards to an off-set station from which the card is fed to a processing station. A feed roller driven by a drive roller is rotated about the periphery of the drive roller and into engagement with the lowermost card by operation of an actuating member, the feed roller feeding the card to a stationary position in the off-set station. Upon release of the actuating member, the drive roller, acting against the stationary card, rotates the feed roller to a disengaged position, the feed roller holding the card in the stationary position during such return movement.

Abstract: Apparatus for use in alpha particle counting with such as photomultiplier tubes, comprising a platform and linkage mechanism whereby samples are moved in linear manner toward and away from ends of the photomultiplier tubes.