Abstract: An apparatus includes a shaft, a device, a fastener, and an anti-rotation clip. The shaft is configured for rotation. The device is mounted on, and surrounds at least a portion of, the shaft, and has first and second protrusions that are formed on one side and are spaced apart to define a tab space. The fastener is rotationally mounted relative to the shaft, and includes a tab slot formed in its outer surface that extends radially inwardly and is disposed radially inwardly of the tab space. The anti-rotation clip includes a main body portion and a head portion that has a first tab portion and a second tab portion. At least a portion the main body portion is disposed between the device and the fastener, the first tab is disposed in the tab space, and the second tab is disposed in the tab slot.

Abstract: A locking device for a rotational based fastener for fastening an object to a substrate, the device including a washer for placement between the fastener head and the object a locking plate for removable engagement to the fastener head to prevent relative rotation of the locking plate and the fastener head, and a flexible, substantially non-elastic integral folded tab connecting the locking plate and washer, the locking plate has a first aperture to receive the the fastener shank such that the fastener head will upon tightening draw the washer into tight contact with the substrate, the locking plate is larger than the fastener head and has a second aperture of smaller or equal size than the fastener head, and the locking plate includes a swagable portion near the perimeter of the second aperture to bridge the fastener head when the locking plate is swaged over the fastener.

Abstract: A device for retaining a bolt including a plate having a bore therethrough for receiving the bolt, a retainer movably mounted on the plate and movable between a first position in engagement with a selected number of facets on the bolt head and a second position out of engagement with the facets, the retainer having a surface portion for receiving a tool at times when the tool is placed on the bolt head for moving the retainer to the second position, and a biasing device for urging the retainer to the first position at times when the tool is removed from the bolt head.

Abstract: A shifter boss mounting assembly includes a member threaded at each end and extending diametrically at least partway through a bicycle frame downtube formed with openings therein, a pair of shifter boss bases with inward surfaces conforming to the downtube outer surface, and a pair of shifter studs that extend through the base and a respective opening in the downtube and thread onto the corresponding threaded ends of the member. A projection on each base cooperates with an opening or indentation in the downtube to restrain the base from rotational movement. A lock washer or a plate keyed to cooperate with the base and the stud restrain the stud against unthreading when the shift levers are pivoted. Once mounted, the boss assembly is standardized in its external configuration to bosses adapted to receive standard commercial shift lever assemblies.

Abstract: An anti-backlash device for use in connecting a rotary drive to the drive shaft of a fuel injection pump, comprising a hub member within which at least one fixing pin is arranged to be moveable transversely of the hub axis, so that an abutment end of the fixing pin can be brought into contact with an end portion of such a drive shaft when the device is in use. Each fixing pin is in screwthreaded engagement with the hub member, and means are provided to rotate the or each fixing pin, thereby to bring about contact between the abutment end of the fixing pin and an end portion of such a drive shaft by virtue of the said screwthreaded engagement.