A cartridge to be inserted into a drive unit includes a casing containing a recording medium disc to be driven by the drive unit. The disc has a hub fixed at its center. Center windows are provided at opposite sides of the casing and allow the hub to be inserted therethrough. Head windows are provided also at opposite sides of the casing and allow a reading head to access information recorded on opposite sides of the disc. Shutters are provided around the center windows and normally cover the he...

A polymer plastic cartridge for holding an information recording means is disclosed. The cartridge is comprised of a container having a writing quality-imparting layer directly embedded on a surface of the container. The writing quality-imparting layer is comprised of a matting agent, a hydrophilic polymer, and a polymer of the same type which the container is comprised of. By embedding the writing quality-imparting layer on the surface of the container it is possible to easily write on the cart...

A cartridge comprises a longitudinal tube having a transverse open end. A projectile is accommodated in and can slide longitudinally inside the tube. The projectile is ejected from the tube through the open end by sliding longitudinally relative to the tube. There is a pyrotechnic charge in the projectile. A device for securing delayed initiation of this charge comprises a fuse, a percussion member in the projectile movable between a retracted position in which it is removed from the fuse and a ...

A cartridge for use in transporting pellets for use in an implant gun or the like. The cartridge comprising an elongate cartridge body having an elongate carrier strip and, spaced along the carrier strip, a plurality of substantially uniformly spaced holders for respective pellets, each holder defining a respective cavity such that each holder is able to hold at least one pellet.

In a cartridge fitted with a gun-barrel projectile comprising a lead head and a resilient body joined to the head by a plug-in connection, the connection is designed to be a positive and exact fit, and the body is constructed with a forward end part adjacent the head, a rod-like central part, and a rearward end part in the form of a flat top piston connected to the central part at a predetermined breakage point whereby the rearward part can break from the central part and move forwards, hence mo...

A projectile is effective for a short time and distance and is thereafter rendered ineffective as a result of its rotation in flight. The projectile is mounted in a case of the standard type which permits it to be used in a standard gun. The projectile has a solid head and a hollow extension, the latter of which has longitudinal slots providing a plurality of side wall sections. The sections hinge outwardly from the head, in the position of blades of a propeller, when rotated by the lands in a g...

A cylindrically shaped cartridge for retaining a photographic film in coiled form. The cartridge is open-ended and includes a pair of parallel side walls. The edges of each of the side walls define opposing latching channels. The outwardly disposed surface of each of the walls defines a pair of spaced recesses positioned adjacent the edge of the respective wall. A cover is hinged to the cartridge housing and each side of the cover carries a pair of ears for engagement with the recesses. Addition...

A cartridge adapted to contain a standard reel of processed motion picture film or other strip material has two cartridge parts, each of which includes a circular sidewall and a semicircular edge-wall extending perpendicularly from and about a peripheral portion of the sidewall. The parts fit together in mating relationship with the sidewall of one part being received in a groove defined by the edge-wall of the other part, to form the chamber for the reel of film or other strip material.

A cartridge has two separate parts with recesses therein jointly defining a chamber for a reel of film or other web material when the cartridge parts are assembled together. Cooperating latch structure on the cartridge parts includes at least one opening in a wide wall of one cartridge part which is adapted to receive a latch portion projecting from a wide wall of the other cartridge part. In assembling the cartridge the latch portion on the second cartridge part is deflected into the recess in ...

A low impulse sustained power cartridge for an initiator power source of energy to accurately and flexibly control the gas output to a system demand. The cartridge has a metering nozzle or throat constriction mounted in the forward end of the cartridge case adjacent the propellant grain by which a low impulse initial gas pressure is delivered that rounds off at peak pressure to sustain an even slow decay.