Abstract: An anti-theft device for locking the steering of an automobile vehicle comprises a crown gear (3) which is rotatable with the steering shaft (1) and has teeth (8) separated by concave sections having a part-circular profile (9), and a locking element on a spindle positioned parallel to the steering shaft (1) and rotatable by a lock (17), the locking element comprising a finger (10) having a length substantially equal to the radius of the concave sections (9) of the crown gear (3) and an outer part-circular face (14) of the same radius as the concave sections (9). The face of the locking finger engages a concave section to prevent rotation of the crown gear and steering shaft in the locked position and the finger is completely out of engagement with the concave sections and gear teeth to allow rotation of the crown gear and steering shaft when in the unlocked position.

Abstract: The invention pertains to high pressure conduit swivel joints capable of conducting fluid pressures of 6,000 psi wherein the associated conduit members of the joint are permitted angular deflection and relative rotational movement. An elastomer assembly is interposed between the conduit associated members of the joint permitting limited relative rotational movement solely due to elastic deformation, and greater rotative movement produces bearing supported rotation of the members. A tubular sleeve is mounted upon a body, and a retainer attached to the body maintains the sleeve thereon, and the elastomer assembly is compressed by the retainer which controls the torque requirements for producing bearing rotative support of the members, such bearing supported rotation occuring at greater torque conditions than that necessary to produce limited member rotation due to elastomer deformation.

Abstract: A double cylinder lock constructed with a single tailpiece driver and a clutch. The interior lock key can be extracted only when the lock bolt is retracted and not when the lock bolt is extended. The driver and clutch arrangement prevent either cylinder from becoming out of time, regardless of which cylinder is used to throw the bolt.