The present disclosure discloses one example of a one-way coupling that eliminates the need for a component corresponding to a guide piece. The one-way coupling of the present discloser includes an input shaft and an output shaft, and is configured to transmit a drive force from the input shaft to the output shaft, and inhibit the drive force inputted to the output shaft from being transmitted to the input shaft. The one-way coupling includes: a transmitter; an immovable ring; a pressure-contact cam; a first wedge member displaceable between a locked position and an unlocked position, and receiving a pressing force from the pressure-contact cam when the drive force is inputted to the input shaft, and thereby the first wedge member is displaced to the locked position; and a first holder holding an arrangement of the first wedge member when the drive force is inputted to the output shaft.

A torque transfer apparatus and method of use is described. The apparatus comprises a plurality of elements assembled together to form a ring structure oriented in a plane around a longitudinal axis. The ring structure defines a first engagement surface. A structure defining a second engagement surface is rotatable with respect to the ring structure. The ring structure is operable to be moved between a collapsed condition and an expanded condition by movement of the plurality of elements, and movement between the collapsed condition and the expanded condition engages or disengages the first and second engagement surfaces. The apparatus can be configured to transfer a driving torque (e.g. a clutch) or a braking force (e.g. a torque brake).

Aspects of the technology relate to a braking assembly for a lateral propulsion system of a high altitude platform (HAP) configured to operate in the stratosphere. Power is supplied to a propeller assembly as needed during lateral propulsion so that the HAP can move to a desired location or remain on station. When lateral propulsion is not needed, power is no longer supplied to the propeller assembly and it may slowly cease rotating. However, in certain situations, it may be necessary to cause the propeller assembly to stop rotating as soon as possible. This can include an unplanned descent. Rapid braking can avoid the propeller blades from entangling in the envelope, parachute or other parts of the HAP. A reusable brake is employed to prevent uncontrolled rotation of the propeller on descent, or otherwise to prevent the propeller from spinning freely when not being used to propel the HAP laterally.

A centering mechanism with a brake piston of a disk brake of a motor vehicle, with a spindle extending into a cavity in the brake piston, has dimensions that prevent a force equilibrium of a nut-spindle assembly moved completely out of the vertical position. A force vector of the gravitational force on the nut-spindle assembly extends within a contact surface between a nut and the brake piston. Thus, the brake piston can be easily assembled with the nut-spindle assembly.

An example brake assembly comprises: a brake disk; an outer brake caliper disposed on a first side of the brake disk; an inner brake caliper disposed on a second side of the brake disk such that the brake disk is interposed between the outer brake caliper and the inner brake caliper; a mounting plate disposed adjacent to the inner brake caliper, wherein the mounting plate is coupled to the inner brake caliper and the outer brake caliper, and wherein the mounting plate comprises a slot; and a brake actuation lever pivotably coupled to the mounting plate and disposed through the slot of the mounting plate to interface with the inner brake caliper, wherein rotation of the brake actuation lever causes the inner brake caliper to move toward the outer brake caliper, thereby squeezing the brake disk between the inner brake caliper and the outer brake caliper.

A clamp slide for use in a linear guide includes a slide body, two piston units disposed in the slide body, two elastic members stopped against the piston units, and two fluid pressure cylinders pushing the piston units to move toward a direction against restoring forces exerted by the elastic members. Further, a moveable member is disposed in each of the piston units and pushed by an inclined plane of a lateral cover to push a braking member, such that a rail is clamped by the left and right braking members. The lateral cover can be assembled in different ways according to actual needs for enabling the inclined plane to perform opposite tilt direction. As such, the clamp slide of the present invention has the effects of simplifying structure and reducing cost.

The invention relates to bearing assembly (10) comprising at least one first bearing element (12) and one second bearing element (14) which are connected together along a longitudinal axis (16) in a rotatable manner relative to each other, wherein the bearing assembly (10) comprises a brake device (18), which inhibits the rotation of the two bearing elements (12, 14) relative to each other by means of a frictional force produced by the brake device (18), and an adjustment device (22), by means of which the brake force which is applied during the rotation the two bearing elements (12, 14) relative to each other can be modified, wherein an adjustment device (22) comprises at least two wedge elements (28, 32), each of which has a wedge surface (34, 36) that rests against each other and which can be moved relative to each other in a sliding manner against each other in order to modify the brake force.

An extended range, consistent force rail brake comprising an adjustable wedge assembly operatively situated between the main power spring(s) and the brake shoe(s) for selectively taking up the vertical distance that the brake shoe is required to travel between the brake release position and an initial railhead contact position. The adjustable wedge assembly is thus selectively expandable in the vertical orientation, and may comprise: an upper block that is operatively connected, either directly or indirectly, to the power spring; a lower wedge rigidly affixed to a replaceable brake shoe; and an intermediate wedge that is located by suitable bearings and/or linkages for transverse, generally horizontal slidable engagement between the upper block and the lower wedge. Each of the upper block and lower wedge elements of the wedge assembly are, respectively, located by suitable bearings and/or linkages for generally vertical translational motion (but very little, if any, lateral or longitudinal horizontal motion) within upper and lower guides provided on a frame of the rail brake.

A brake device for braking a wheel includes a brake drum, a brake pad carrier which is arranged or can be arranged in the brake drum and has at least one brake pad, and an actuator apparatus for the reversible transfer of the brake pad carrier between a braking state, in which the brake pad is operatively connected to the brake drum, and a freewheeling state, in which the operative connection between the brake pad and the brake drum is canceled, the brake pad carrier being elastically deformable for the transfer from the freewheeling state into the braking state.

A braking assembly is disclosed comprising a shaft, a brake cage being rotatable with the shaft, an earth ring extending circumferentially around the brake cage, at least one engagement member coupled to the shaft, and a braking mechanism configured for selectively applying a force to the brake cage for slowing or preventing rotational movement of the brake cage such that the shaft rotates relative to the brake cage, and wherein the braking assembly is configured such that when the shaft rotates relative to the brake cage, said at least one engagement member is urged to engage the earth ring such that rotation of the shaft is inhibited or prevented. The earth ring may be replaced with an output shaft such that the assembly operates as a clutch assembly.