Abstract: Disclosed herein is a mammography apparatus including a driving shaft configured to transmit power to a transfer unit, a loader configured to be driven by receiving power from a driving unit, a power transmission unit coupled to one end of the driving shaft and configured to selectively come in contact with the loader due to an external force, an emergency braking unit coupled to the other end of the driving shaft to be driven together with the driving shaft, and configured to stop being driven when power supply is cut off, and a driving controller provided between the driving shaft and the emergency braking unit so that a direction in which the driving shaft is driven is restricted to one direction.

Abstract: The invention relates to a construction machine having a mast and a lifting element which can be moved up and down along the mast with a hoist rope. The hoist rope can be activated by means of two rope winches. At least one first rope winch is designed as a free fall winch, wherein the hoist rope can be lowered in free fall. To lower the hoist rope a controller is provided, with which the first rope winch, which is designed as a free fall winch, can be switched into a free fall mode. Meanwhile, a second rope winch is operated in force-locking manner.

Abstract: A torque-limiting a clutch brake is provided for an input shaft of a vehicle transmission. The clutch brake employs wave springs in its torque-limiting feature and can largely be fabricated from sheet metal parts.

Abstract: A park brake actuator (“PBA”) may comprise a shaft having a friction hub disposed about the shaft, the friction hub fixed against rotation with respect to the shaft, a permanent magnet array (PMA) disposed circumferentially about the shaft, the PMA comprising a cylindrical structure comprising a Type A magnet adjacent a Type B magnet in an annular arrangement, and a coil disposed circumferentially about the PMA and configured to conduct at least one of a positive current pulse and a negative current pulse.

Abstract: A shaft mounted rotor brake (7) with at least one braking force absorption element non-rotatable connected to said shaft (1). A stationary brake actuator (8, 24) is mounted to a rotor gear box housing (4). Said stationary brake actuator (8, 24) actuates a braking force transmission element (17, 23) that is functionally coupled to the at least one braking force absorption element (2) so as to exert a braking effect. At least one rotor brake deactivation device (6, 9, 25) is provided. The at least one braking force absorption element comprises lamellas (2) interacting with stationary lamellas (3), said lamellas (2) and stationary lamellas (3) being arranged inside of the rotor gear box housing (4) with oil inside.

Abstract: Braking device for roller skates, skateboards, or the like, having a roller support in which a roller is mounted axially movable between a first freely rotatable position and a second braked position. The braking device includes an actuatable brake unit is supported relative to the roller support and the brake actuation force is produced from the torque of the roller via a clutch unit having a downstream transmission unit, the clutch unit being open in the first position and closed in the second position.

Abstract: The invention relates to a no-back device for a mobile element actuating device including a screw shaft having first and second braking means each comprising a ratchet wheel. These ratchet wheels are mounted opposite one another so that the first braking means are adapted to resist an unwanted movement of the screw shaft in a first direction, and the second braking means are adapted to resist an unwanted movement of the screw shaft in an opposite direction. The no-back device also includes means for detecting the state of the rotation of the ratchet wheels and indicating means for furnishing, according to the state of the rotation of the wheels, an indication concerning the operating state of the no-back device.

Abstract: An emergency braking assembly that stops the rotation of a shaft in the event that the speed of the shaft exceeds a predetermined speed. The braking assembly includes a flanged mounting ring that is mounted to a housing where the shaft extends through the ring, and a braking ring threadably mounted to the mounting ring. An insert is mounted to the shaft within the braking ring. The braking assembly insert includes a pair of symmetrical weights that tend to move outward upon rotation of the shaft. Pins mounted to the weights and the insert prevent the weights form moving outward until the speed of the shaft exceeds the predetermined speed. A locking mechanism that locks the pin to the insert releases causing the pins to extend outside of the insert and engage stops mounted to an inside surface of the braking ring, which stops the shaft from rotating.

Abstract: A linkage positioner for a drum brake, which is used to compensate for braking-related wear, especially on the brake linings, has an overload clutch and a one-directionally rotating or one-way clutch. The overload clutch is embodied as a ball ramp clutch, which is biased by a pressure spring.

Abstract: An improved automatic slack adjuster for reducing slack in the brake of a vehicle, in which a one-way clutch assembly is arranged at a side of the automatic slack adjuster housing, and one-way motion-inhibiting pawls in the one-way clutch assembly act on one-way gear teeth disposed on an inner radius of a gear wheel within the assembly whose outer circumference drives a slack adjuster unit. The incorporation of the one-way clutch within the anchor unit of the adjuster provides an automatic slack adjuster which can be produced at a reduced cost, manufactured more easily, and provides for improved adjustment performance with much reduced dependence on the lubricity of grease used.

Abstract: A mechanical brake having an axial shifting mechanism arranged on an input drive shaft and an axial shifting mechanism arranged on an output drive shaft. The two axial shifting mechanisms are so embodied that their shifting directions are opposed and that, upon introduction of a torque via the input drive shaft and/or the output drive shaft, the axial shifting mechanism associated with the input drive shaft has precedence over the axial shifting mechanism associated with the output drive shaft.

Abstract: A brake mechanism for activating the brake rigging of a railway car, the brake mechanism comprising a shaft having axial splines formed on one end thereof, a handle rotatably coupled to the shaft so that the handle is rotationally fixed to the shaft in a first direction and rotates relative to the shaft in an opposite second direction. A first gear is connected to the railway car brake rigging, a second gear is in operative engagement with the shaft splines, and a clutch is operatively disposed between the first gear and the second gear, the clutch having a coupler for rotationally coupling the first gear and the second gear and at least one spring operatively disposed intermediate the first gear and the second gear for biasing the coupler into engagement with the second gear. The coupler is moveable between a first position in which the first gear is rotationally coupled to the second gear, and a second position in which the first gear rotates with respect to the second gear.

Abstract: The present invention relates to an integrated overloaded and braking safety device appropriately applied on the winding mechanism for loading; wherein, brake nut piece equipped with gear wheel of the general mechanical ratchet brake set is redesigned to be separate gear wheel, brake nut piece and gliding spring seat, and by making use of the action of spring force, the abovementioned three components will be combined to be part of the gliding clutch; moreover, via the foregoing improvement, the ratchet brake set and gliding clutch will be integrated as one provided with the function of overloaded-glide and brake. Hence, the effect of safety operation of load-hoisting for the winding mechanism will be acquired.

Abstract: An indicator device for use in indicating whether or not a no-back device is operable, the indicator device comprising an indicator member 42 moveable between a first position and a second position, a biassing arrangement 56 being provided to urge the indicator member 42 towards its first position, and a latch arrangement 46 being provided to allow the indicator member 42 to be held, against the biassing load of the biassing arrangement 56, in its second position, the indicator member 42 being adapted such that, in use of the associated no-back device, movement of the pawl 30 of the no-back device causes the indicator member 42 to be moved out of its second position.

Abstract: The problem of reliably locking an electrically actuated park brake is resolved through the use of a jaw-tooth clutch operatively installed between the shaft and the housing of a drive motor, for engaging the brake. The brake may be locked and unlocked by selectively engaging the jaw-tooth clutch either electrically or manually.

Abstract: The present invention relates to a friction brake, in particular a disc brake, for a motor vehicle with a friction element, e.g. a brake disc, coupled to the rotation of a vehicle wheel, forming a friction pairing of the friction brake with at least one associated brake lining, and with at least one clamping device for pressing at least one brake lining to the friction element. At least one controllable friction clutch is provided for using the rotational energy of the friction element in order to obtain the clamping force of the friction brake, the friction clutch being coupled on its input end to the rotation of the friction element and on its output end to the clamping device. Functional advantages are achieved because a friction pairing of the friction clutch is provided independently of the friction pairing of the friction brake. This eliminates undesired mutual influences. Altogether, such a friction brake obviates the need for an additional energy source for generating a brake clamping force.

Abstract: A disc brake to be opened by torque is arranged between a drive shaft and a driven shaft and comprising a brake wheel arrangement arranged between the drive shaft and the driven shaft, a friction surface arrangement arranged to co-operate with the brake wheel arrangement, at least one spring device arranged to press the brake wheel arrangement and the friction surface arrangement axially against each other, and a cam arranged between the drive shaft and the brake wheel arrangement, and the cam causing by the impact of the torque or rotation of the drive shaft and the possible countertorque of the driven shaft the relative axial position between the brake wheel arrangement and the friction surface arrangement to change in order to detach at least partly the braking engagement against the spring force caused by the spring device.

Abstract: The invention relates to a torque controlled brake arranged between a drive shaft and a driven shaft, said brake comprising a brake disc/clutch disc arrangement containing a first disc and a second disc arranged between said shafts; a first set and a second set of friction surface means in co-operation with the brake disc/clutch disc arrangement; a spring arrangement providing a braking engagement by means of the disc arrangement and the friction surface means; and a first and a second cam part causing by the impact of torque and rotation of the drive shaft and the possible countertorque of the driven shaft the relative axial position between said discs and the friction surface means to change in order to detach at least partly the braking engagement against the force caused by the spring arrangement.

Abstract: An integrated wheel, brake and axle structure for an aircraft comprises a tubular axle, and a wheel hub rotatably mounted interiorly of the tubular axle and accessible at an axial end thereof for mounting of a wheel thereto. A brake disk stack, having front and rear axial ends, includes alternating rotor and stator disks mounted with respect to the wheel support and wheel for relative axial movement. Each rotor disk is coupled to the wheel for rotation therewith and each stator disk is coupled to the axle for support against rotation. In such arrangement, the wheel web functions as a back pressure member for applying force to the outboard end of the disk stack. A cooling fan is provided interior of the axle for generating a cooling flow of air across the brake disk stack.

Abstract: A disc brake assembly includes a stationary member, a rotating member defining an axis of rotation, a plurality of stationary discs spaced axially along the axis of rotation within the stationary member, and a plurality of movable discs interspaced with the stationary discs. A brake coupler supports the movable discs. During non-braking vehicle operation, the movable discs and the brake coupler remain stationary relative to the stationary discs. During a braking maneuver, the coupler couples the movable discs to the rotating member such that the movable discs are caused to rotate with respect to the stationary discs. Once the coupler and rotating member are interconnected a piston moves the stationary and movable discs together to reduce rotation of the rotating member and brake the vehicle.

Abstract: The problem of reliably locking an electrically actuated park brake is resolved through the use of a jaw-tooth clutch operatively installed between the shaft and the housing of a drive motor, for engaging the brake. The brake may be locked and unlocked by selectively engaging the jaw-tooth clutch either electrically or manually.

Abstract: The invention relates to a disc brake to be opened by torque, the disc brake being arranged between a drive shaft (3) and a driven shaft (11) and comprising a brake wheel (12) arranged on the driven shaft (3) non-rotatably in the peripheral direction; a friction surface (15) arranged to cooperate with the brake wheel (12); a spring device (14) arranged to press the brake wheel (12) axially against the friction surface (15) and means (19 to 21) causing, by the action of the torque and torsion of the drive shaft (3) and a possible counter-torque of the driven shaft (11), the brake wheel (12) and the friction surface (15) to drift axially apart and, accordingly, the braking coupling between them to loosen against the spring force of the spring device (14), whereby the drive shaft (3) and the driven shaft (11) are interconnected in such a way that they may turn a restricted rotational angle with respect to each other and that means for causing said axial displacement and for loosening the braking coupling compris

Abstract: An improve wet disc brake incorporates a two part rotating disc. One of the two parts is selectively rotatable, and the other part is constantly rotating with the rotor. The rotor carries an air supply which creates an air bearing between the constantly rotating disc portion and the selectively rotating disc portion. During non-braking operation the air bearing maintains the selectively rotating portion out of contact with the rotating portion. Fluids other than air may be used. The selectively rotating portion thus remains stationary within the wet disc brake chamber, reducing frictional losses. When braking is desired, the flow of air to the air bearing is stopped. A bias force forces the selectively rotating portion into contact with the constantly rotating portion. Then, braking does occur by operation of the stator discs to move towards contact with the rotor discs.