Abstract: A coaxial cable connector using the interference fit of a metallic sleeve forced into an open end of an annular space of a metallic coaxial cable connector end piece to provide the holding force required to maintain a tight mechanical connection between the coaxial cable and the coaxial cable connector thereby providing a good electrical contact between the coaxial cable shielding conductor and the coaxial cable connector, to provide good electromagnetic shielding performance for a central conductor from outside interference.

Abstract: Disclosed is a locking device which comprises a stationary member permanently mounted on a door structure together with a passive stationary block permanently mounted on adjacent wall structures which is connected to an interlocking member by means of an armored cable, the interlocking member interlocking with the stationary member to preclude movement in all directions but one and with a cylindrical barrel lock interlocking with both the stationary member and the interlocking member to preclude movement in the remaining one direction. The entire structure is generally invulnerable to attack by conventional burglary tools unless such attack is carried out for excessive periods of time, e.g., an hour or longer.

Abstract: A rotor disc for a rotor shaft member of an axial flow turbine apparatus is disclosed. The disc has disposed externally thereon a flat surface which lies parallel to a predetermined longitudinal plane extending within the disc. The plane is disposed within the disc so as to extend through a keyway utilized to prevent rotation of the disc relative to the shaft. The predetermined longitudinal plane within the disc is the plane in which cracking of the disc is most likely to occur. The externally disposed, flat, surface area of the disc permits an ultrasonic signal emitted from a transducer disposed adjacent to the external surface to propagate in a direction substantially perpendicular to the predetermined plane within the disc.