Abstract: Retainer for threaded fasteners such as the cap screws that secure the end caps of roller bearing assemblies to railroad axles. A locking plate is constrained against rotation relative to the fastener, a lock ring having a plurality of openings disposed along a circular path is placed over the head of the fastener, with the fastener being received in a non-circular central opening in the ring and thereby constrained against rotation relative to the ring, and tabs extending from the locking plate and engaging the lock ring through the openings to retain the lock ring on the fastener and prevent the lock ring and fastener from turning. In the disclosed embodiments, the ring can be placed on the fastener in different rotative positions, and the number of tab openings is either a prime number or another number that is not divisible by factors of the number of ring positions, whereby the fastener can be selectively locked in a relatively large number of different positions no more than a few degrees apart.

Abstract: A fastening device for a nut comprises a fastening part configured to engage in a screw element, a securing part configured to engage in the nut, and an intermediate part providing a non-positive connection between the fastening part and the securing part, wherein the intermediate part is made of a restorable material and is designed to apply a restoring torque directed at the original state during a rotation of the securing part in relation to the fastening part.

Abstract: A screw retention device is disclosed for maintaining at least a pair of screws in a substantially static position. The screw retention device preferably includes at least two clamping portions, each clamping portion defining a recess therein for receiving and securely retaining a screw. The clamping portions include a serrated surface extending circumferentially around an inside periphery of the clamping portion, surrounding the recess. The serrated surface of the clamping portion corresponds to and engages with a serrated surface on the screw to retain the screw. In a preferred embodiment of the invention, the screw retention device is press fitted onto the screws.

Abstract: A system of locking a pinch bolt assembly through a yoke arm of a vehicle steering assembly. The yoke arm of a steering assembly has an outward end, a forward face and a rearward face. A bolt receiving aperture through the yoke arm connects the forward face and the rearward face. A pinch bolt is fitted through the bolt receiving aperture to control the radius of an aperture for receiving an adjustment bushing. The head of the pinch bolt impinges against a selected one of the rearward and forward faces and a nut fitted to the bolt is tightened against the unselected face resulting in the head and nut pressing against their respective faces. A C-shaped channel section is fitted around the forward face, the rearward face and the outward end of the yoke arm. The channel section includes coaxial apertures fitted around the head of the bolt and the nut, respectively, for preventing the rotation of the nut and the bolt and thus preventing the nut and bolt from loosening.

Abstract: A locking device for threaded fasteners includes a unitary flexibly shape-retaining body having portions nonrotatably engaging the heads of each of a pair of bolts, and a medial interconnecting bar portion which mutually prevents rotation of the portions and of the engaged bolts, while also deformably allowing for variable spacing between the pair of bolts to be accommodated. A resilient retainer pin removably secures the locking device to each bolt head. The locking device may be reused many times without detriment to its locking function.

Abstract: A lightweight pliable heat and noise insulator blanket is mounted to the exterior surface of the axial end wall of a temperature controlled cylinder with band clamps that grasp adjacent ones of the connector screws that hold the end panel to the cylinder. The insulator blanket comprises multiple layers of heat and noise insulation material, and the blanket defines a central opening and a slot extending from the central opening through the outer peripheral edge portion so that the blanket can be positioned about the axle of the rotary cylinder. The band clamps each include a band formed in a closed shape for positioning about adjacent ones of the connector screws of the rotary cylinder, and a mounting block positioned between the connector screws.

Abstract: A locking device is provided for preventing adjacent threaded fasteners from rotating while not bearing any of the preload stress of the fasteners. The locking device includes: a plurality of locking rings, each locking ring being of sufficient diameter to surround the sides of one of the adjacent fastener heads and wherein each locking ring is made from a pliable material such that the locking ring may be deformed to closely fit its associated fastener head; and a torque member, connected to each locking ring, for providing torque to prevent each locking ring and its associated bolt head from rotating.