Abstract: A locking and unlocking nut structure contains a body including a through hole and a semi-circular recess, and the semi-circular recess having a starting segment and a stopping segment, the body further including a diameter-decreased screw section; a slidable block including a C-shaped cutout, and the C-shaped cutout including an engaging hook extending outward from a lower end thereof, the slidable block including first threads, while the slidable block is fixed on the starting segment, a distance from the first threads to an inner wall of the through hole is larger than an outer diameter of the screw rod (tube); while the slidable block is fixed on the stopping segment, a distance from the first threads to the diameter-decreased screw section is equal to the outer diameter of the screw rod (tube); the screw rod (tube) including second threads to match with the diameter-decreased screw section and the first threads.

Abstract: A fastener, such as a housing, for mounting to a structure, such as a panel, that has an aperture formed therethrough. The fastener includes a shank member and an annular nut member that is configured to align coaxially with the shank member. The shank member is inserted through aperture in the structure and the nut member is placed on the shank member. Teeth on the radially outwardly facing surface of the shank member engage a pawl, such as one or more teeth, on the radially inwardly facing surface of the nut member to lock the nut member to the shank member. Removal of the nut member is effected by rotating the nut member to disengage the pawl from the teeth, thereby permitting longitudinal displacement of the nut member off of the shank member.

Abstract: A fastening device for a fitting part, such as a hinge part, is provided with a fastening borehole. A bushing or a ring-shaped insertion part can be inserted in the previously drilled borehole and includes a continuous hole in an axial direction. A pin, provided with a head and penetrating the fastening borehole, is pivoted in the continuous hole. The continuous hole is positioned eccentrically in the bushing or in the ring-shaped insertion part. The pin is provided with an eccentric shaft part which protrudes over the hole and on which a clamping part is fastened.

Abstract: This invention relates to an automated work center for use in materials handling operations. The work center includes a randomly accessible vertically moving temporary storage queue 11 for receiving containers 25 that hold material goods. A fixed loading ramp 20 is arranged to receive containers 20 from an external system and to load the received containers onto the storage queue 11. A work area 5 having a plurality of rotatable work tables 7 provides an gives the operator access to the containers. A delivery system 14 transfers containers between the storage queue 11 and the work tables 7 and a takeaway system 16 transfers containers between the work area and the conveyor network. An automated control system 17 coordinates the delivery of containers between the temporary storage queue 11 and the work area 5. A consolidation queue 18 having a multiplicity of vertically spaced shelfs may be disposed opposite the work tables 7 to facilitate the consolidation of ordered goods.

Abstract: Means for preventing the common rotation of one of a bolt and a nut in the case where the other of said bolt and said nut is rotated by means of a tool, such as spanner, to screw up a plurality of members by the use of the bolt and the nut is provided.

Abstract: The forks of a bicycle receive an axle having threaded ends. A tube surrounds the axle and carries ball bearings on which a wheel housing is rotatable with a space between the tube and the housing. Specially shaped seals engage the wheel housing and the tube between the ball bearings to keep lubricant out of the space between the seals. A special lever lock on one end of the axle cooperates with a nut on the other end of the axle to draw together the parts engaged with the axle, the tube and the housing.

Abstract: Bracket members secured respectively to the end of the wing at a forward or aft location, and to the aircraft fuselage form with a clevis pin a clevis connection with the clevis pin projecting through the bracket members. The pin bears integrally a first cam fitted within a circular opening of one bracket member. A pair of cam bushings rotatably mounted on the clevis pin to the side of the first cam are positioned within circular openings of dual ribs of the other bracket member forming the clevis connection. The cam bushings and the clevis pin are independently rotated to vary the angle of attack of the wing mounted to the fuselage and are locked at adjusted positions.

Abstract: A collar threads onto a shear pin. When the collar engages a surface of a workpiece, resistance to further threading increases. When sufficient resistance to threading occurs, a setting driver upsets lobes of the collar and forces these lobes radially inward toward the axis of the collar. Material of the collar inside the lobes responds to deformation of the lobes and flows radially inward against the shear pin to lock the collar, shear pin and workpiece together. The driver then rotates freely and a joint has been made with a predetermined clamp-up load and its component parts locked together.