A torsion shaft assembly includes a torque carrying shaft including a driven end configured for receiving torque input to the torque carrying shaft and a driving end configured for outputting torque output from the toque carrying shaft. The torque carrying shaft includes an axial facing damping interface surface axially between the driven end and the driving end. A friction tube is disposed outboard of the torque carrying shaft. The friction tube is connected at a first axial location to be driven by the torque carrying shaft. The friction tube includes an axial facing damping interface surface that abuts the axial facing damping interface surface of the torque carrying shaft, forming a damping interface to provide frictional dampening against angular vibrations occurring as differential angular displacement between the driven end and the driving end of the torque carrying shaft.

Provided, in one aspect, is a downhole torque limiter, comprising a tubular housing; a pipe positioned within the tubular housing, the pipe transitioning from a larger inside diameter (ID.sub.L) to a smaller inside diameter (ID.sub.S), thereby forming a venturi profile having a first pressure zone (Z.sub.1) and a second pressure zone (Z.sub.2); a tubular valve plate radially positioned between the tubular housing and the pipe and rotationally fixed with the pipe; a lower sub rotationally fixed relative to the tubular housing and rotationally coupled to the tubular valve plate via a clutch mechanism; and a valve assembly positioned within a longitudinal opening extending along at least a portion of a sidewall of the tubular valve plate, the valve assembly configured to be activated by a pressure drop created by fluid flowing through the venturi profile.

A tooth driven over-torque protection mechanism for use in a slack adjuster or as an air disc brake clutch, includes a shaft, toothed gear, a clutch device, a first spring, and a second spring. The toothed gear is disposed on the shaft. The toothed gear has a first pinion teeth set that extends along a first direction and a second teeth set that extends along a second direction. The clutch device that is also disposed on the shaft and includes an upper cam and a lower cam. The first spring biases the toothed gear against the clutch device. The second spring biases the clutch device against the toothed gear. The upper cam has cam teeth that cooperate with the second teeth set of the toothed gear in a torque transmitting manner, such that a torque applied in a clockwise direction to the first pinion teeth is transmitted to the upper cam through the second teeth set, but torque applied in a counterclockwise direction is opposed by the first spring.

An assembly comprising a first part and a second part, the assembly comprising a disconnectable coupling system provided with a mechanical fuse for securing the first part and the second part according to an axis of movement up to a breaking threshold. The assembly comprises at least one single-use friction brake interposed between the first part and the second part, the friction brake braking a movement of the first part with respect to the second part after the mechanical fuse has broken.

The invention relates to a torque transmission device (1) for the drive train of a motor vehicle, comprising an input element (2) and a cover element (16) which is connected to the input element (2) for conjoint rotation, and comprising an output element (3), wherein: the output element (3) and the input element (2) are rotatable in relation to one another via an energy accumulator device (4) and about a common axis of rotation A; a torque-limiting device (10) is located between the input element (2) and the output element (3); the torque-limiting device (10) is designed to transmit a torque between the input element (2) and the output element (3) up to a limit torque value and, when the limit torque value is exceeded, to transmit a torque at least in part or to transmit no torque at all; the torque-limiting device (10) is connected to the energy accumulator device (4) via a frictional and/or form-fitting connection (8), is connected to the input element (2) via a first frictional connection (9), and is connected to the cover element (16) via a second frictional connection (14); the torque-limiting device (10) comprises a preload element (5) for providing the frictional connections (9; 14); the preload element (5) is preloaded between the input element (2) and the cover element (16); a radially inner region of the preload element (5) is provided with at least two contact elements (17a, 17b, 17c, 17d, 17e, 17f); the contact elements (17a, 17b, 17c, 17d, 17e, 17f) are provided on a radius (r) and protrude axially out of the preload element (5) in the direction of the input element (2); the contact elements (17a, 17b, 17c, 17d, 17e, 17f) are at an angular distance (α) from one another; and the contact elements (17a, 17b, 17c, 17d, 17e, 17f) form the first frictional connection with the input element (2).

A strain wave gearbox configured to provide over-torque protection. The strain wave gearbox is designed to include a clutch that is at least partially housed within or positioned inside the internal space (herein labeled a chamber or void space interchangeably with internal space) of a flex spline. In some cases, the internal space is utilized to generate the preload for the clutch, and it may be used to provide room for a clutch preload subassembly. The clutch is located outside the flex spline's internal space and is formed to use geometric friction surfaces in the form of mating rings of teeth on mating surfaces or sides of the first and second clutch plates that once preloaded by the clutch preload subassembly require a greater torque than the design torque to rotate to the next tooth.

The invention provides a device and a method for processing slaughter animals, in particular slaughtered poultry such as chickens, and/or parts thereof. The device comprises a driving system for driving an element to be driven of the device. The, driving system comprises a driving element, a transfer element, which is driven by the driving element in use and which is rigidly connected during normal operation to the element to be driven, as well as overload protection means which are configured to rigidly connect the processing element and the transfer element during normal operation and to allow relative movement between the processing element and the transfer element in an overload situation if a force that acts between the processing element and the transfer element exceeds a threshold value. The overload protection means comprise a first connecting element forming part of one of the transfer element and the element to be driven and a second connecting element forming part of the other one of the transfer element and the element to be driven, wherein the first connecting element is configured as a first magnet element (36) and the second connecting element is either magnetisable or configured as a second magnet element.

The present invention provides a coupling device including a first rotating body and a second rotating body disposed coaxially with each other and rotatable relative to each other. The coupling device includes a spacer disposed between the first rotating body and the second rotating body; and a pressing member for performing pressing of at least one rotating body of the first rotating body and the second rotating body against the spacer. The spacer is formed of an elastic member, and generates a frictional force between the spacer and the one rotating body when the pressing member performs the pressing. The one rotating body and the spacer are formed to have a configuration that allows the one rotating body or the spacer to be idled when torque larger than the frictional force acts between the one rotating body and the spacer.

An enhanced material-processing device and method are disclosed, having a processing tool of substantially circular circumference, which is operative with a power tool having a rotating spindle and jaws, which clamp the processing tool. The enhanced material-processing device has a central opening that is entered concentrically in the processing tool for receiving a clutch mechanism, and a hub structure. The hub structure is associated with the clutch mechanism to form a slip clutch that is integrally mounted in the enhanced material-processing device and is operative by application of an axial compression friction fit on the processing tool, which slips relative to the rotating spindle when a threshold torque limit is reached. The clutch mechanism is preloaded in axial compression through a predetermined elastic strain distance to provide a friction fit having a torque limit threshold, which torque limit of the slip clutch is controllably pre-adjustable.

An accessory drive tuning device with a torsion spring for angular vibration isolation and having a spring pocket that frictionally engages the end of the torsion spring. The engagement may be with a wedge-shape on either the spring end or the pocket or both, adapted so that the spring end wedges into the pocket. The engagement may be by interference fit. One or both ends of the spring may be engaged in respective pockets.