There is provided a configuration that can precisely detect abrasion of brake shoes of a railway vehicle. A brake shoe abrasion detection unit includes: at least one abrasion detection RF tag that is attached at a position of an abrasion limit of a brake shoe of a railway vehicle tread brake or a position closer to a braking surface than the abrasion limit; and a reference RF tag that is attached at a position beyond the abrasion limit of the brake shoe.

A parking brake and anti-theft apparatus as described herein may include a brake assembly, a linear actuator and a plurality of locking pins. The brake assembly may include a rotor plate. The rotor plate may include a plurality of openings in and/or through the rotor plate. The plurality of locking pins may be extendable by the linear actuator. The pins may be aligned perpendicular to a face of the rotor plate such that, as at least one of the pins is disposed over one of the plurality of openings and the actuator extends the plurality of locking pins, the pin disposed over the one of the plurality of openings passes into the one of the plurality of openings. In various embodiments, the plurality of pins may comprise a length equal to or greater than a length between two adjacent openings of the plurality of openings.

A truck mounted braking system is provided with a mechanical pivot adjustment on the bake lever connected to the brake cylinder push rod to permit the braking force applied to the wheels to vary depending on the lading condition of the car, without involving additional pneumatic elements such as a pneumatic empty load device. The brake cylinder may be provided with a channel which permits the push rod to achieve different positions based on different positions of the brake cylinder push rod.

A truck mounted braking system is provided with a mechanical pivot adjustment on the bake lever connected to the brake cylinder push rod to permit the braking force applied to the wheels to vary depending on the lading condition of the car, without involving additional pneumatic elements such as a pneumatic empty load device. The brake cylinder may be provided with a channel which permits the push rod to achieve different positions based on different positions of the brake cylinder push rod.

An adjustable brake controller of an elevator brake including a DC bus, first terminals for connecting the brake controller to a first magnetizing coil, second terminals for connecting the brake controller to a second magnetizing coil, a first controllable power switch coupled between the first terminals and the DC bus, the first controllable power switch being configured to supply electric power from the DC bus to the first magnetic coil responsive to a first control signal, a second controllable power switch coupled between the second terminals and the DC bus, the second controllable power switch being configured to supply electric power from the DC bus to the second magnetizing coil responsive to a second control signal, and a controller configured to generate the first and the second control signals for controlling the first and second power switches, respectively, with a brake open mode and a brake holding mode.

An adjustable brake controller of an elevator brake including a DC bus, first terminals for connecting the brake controller to a first magnetizing coil, second terminals for connecting the brake controller to a second magnetizing coil, a first controllable power switch coupled between the first terminals and the DC bus, the first controllable power switch being configured to supply electric power from the DC bus to the first magnetic coil responsive to a first control signal, a second controllable power switch coupled between the second terminals and the DC bus, the second controllable power switch being configured to supply electric power from the DC bus to the second magnetizing coil responsive to a second control signal, and a controller configured to generate the first and the second control signals for controlling the first and second power switches, respectively, with a brake open mode and a brake holding mode.

A railcar steering bogie includes a bogie frame, a wheelset, an axle box suspension, a steering mechanism configured to steer the wheelset, a brake unit, and a brake unit support link. The brake unit includes: a main body frame; a brake shoe supported by the main body frame and pressed against a wheel tread of the wheel during braking. The brake unit support link couples the axle box suspension and the brake unit and transmits displacement of the axle box in a car longitudinal direction to the brake unit at least during steering performed by the steering mechanism. The brake unit support link restricts the brake unit from being displaced outward in a car width direction by a predetermined distance or more during the braking. At least one of a side surface of the brake unit support link and a side surface of the brake unit includes a sliding surface.

A linkage structure of a reluctance unit and a brake unit and an exercise machine having the linkage structure are provided. The exercise machine includes a main body, having a resistance wheel and a control unit; a linkage member, connected with the control unit; a reluctance unit, corresponding to the resistance wheel and connected with the linkage member; and a brake unit, corresponding to the resistance wheel and connected with the linkage member. The control unit controls the motion of the linkage member so that the linkage member drives the reluctance unit to move between a reluctance position and a release position, and the linkage member drives the brake unit to move between a brake release position and a brake position.

A brake screw for use with a surgical lighting system. The brake screw includes a screw member retained within a threaded aperture of a mounting hub of a spindle of an arm used with the lighting system. The screw member is rotationally adjusted to enable displacement in an axial direction. A brake member is in axial alignment with the screw member and disposed for movement in the axial direction against a mounting tube retained within the mounting hub upon rotational adjustment of the screw member. A rivet section is integrally formed with the brake member and has a distal end retained within an axial recess formed within the screw member, allowing movement of the brake member in the axial direction within the screw member. A bias member is disposed between the screw member and the brake member to create a biasing force that urges apart the screw member and the brake member along the axial direction.

A brake screw for use with a surgical lighting system. The brake screw includes a screw member retained within a threaded aperture of a mounting hub of a spindle of an arm used with the lighting system. The screw member is rotationally adjusted to enable displacement in an axial direction. A brake member is in axial alignment with the screw member and disposed for movement in the axial direction against a mounting tube retained within the mounting hub upon rotational adjustment of the screw member. A rivet section is integrally formed with the brake member and has a distal end retained within an axial recess formed within the screw member, allowing movement of the brake member in the axial direction within the screw member. A bias member is disposed between the screw member and the brake member to create a biasing force that urges apart the screw member and the brake member along the axial direction.