A method for controlling a braking system of an electromagnetic motor, the electromagnetic motor having a moveable output shaft, comprising the steps of: receiving a velocity signal and/or an acceleration signal based on movement of the output shaft, said velocity signal and/or acceleration signal having a respective frequency spectrum; identifying an event from the velocity and/or the acceleration signal using the respective frequency spectrum, wherein said event corresponds to an uncontrolled movement of the output shaft and has a characteristic frequency spectrum.

An adjustable friction brake assembly may adjust a variable amount of frictional force required to translate or rotate a shaft, rather than merely locking or unlocking the shaft. The brake assembly includes a housing for internally receiving the shaft, the external portion of the housing including external threading leading into circumferentially spaced fingers extending axially and oriented radially inward to engage the shaft. The brake assembly includes a rotatable adjuster having an internally threaded throughbore for engaging the housing and directing the fingers radially inward to engage the shaft, thereby increasing the required frictional force. For example, by rotating the adjuster clockwise, the required force can be increased; similarly, by rotating the adjuster counterclockwise, the required force can be decreased.

A portable zip line emergency brake system intended to stop or slow down a zip liner (or load) on a cable while giving the control to the device user or operator on the opposite end of the zip line. As an out of control rider comes down the zip line the operator will lock the device onto the cable and roll it out onto the the zip line using a combination of sending force by the operator and gravity to meet the riders pulley. The device is adjustable for different riders estimated weights. Once the riders pulley comes in contact with this device far out on the cable it will use a lever camming action between two brake pads on the cable as it reverses direction. As the brake is engaged it will stop or slow the rider. The operator can then pull them to the end safely.

A brake, which includes a frame part of the brake, an armature part movably supported on the frame part, and attached to the frame part a limit switch, the switching state of which changes when movement is exerted on the limit switch in the operating direction of the limit switch. The brake also includes a measuring pin that is movably supported on the frame part of the brake and that is separate from the armature part, which measuring pin is connected to the limit switch.

In one embodiment, a traverse system configured to move a catwalk relative to a beam, is provided. The system includes a body, an upper brake pad coupled to the body and configured to contact a side of a flange of the beam and a lower brake pad coupled to the body and configured to contact an opposing side of the flange, and an actuator coupled to at least one of the brake pads and configured to move the brake pads between a gripping position that grips the flange and an open position that spaces one of the brake pads away from the flange.

The cable grab safety device releasably attaches a workman's safety lanyard to a steel cable. A primary frame constructed of an elongated U-shaped bracket having a pair of spaced apart parallel side plates fits around the cable. A secondary frame also comprised of a pair of side plates fits within the U-shaped bracket after the cable is inserted. The secondary frame carries a brake in the form of a pulley mounted in an elongated slot movable toward or away from the cable. A lever attached to a worker's lanyard moves the pulley only in the inward direction to engage the cable in the event of a fall. A bent pin connected between the primary and secondary frames allows for limited pivotal and axial movement between them allowing the cable to be inserted into the U-shaped bracket. A separate locking pin secures the frame members together.

A self-locking device for a mountaineer or a speleologist climbing up a rope is provided herein. The device includes a main body having an inner face with a sliding seat for the rope. The sliding seat is partially defined by a part of the body of the device folded upon itself and partially defined at a bottom and laterally by the inner face of the body of the device. The device includes a cam member associated with the body and able to tilt around an axis X from an open position to a position holding the rope. The self-locking device also includes one or more pulleys associated with the body. The one or more pulleys are arranged so that a longitudinal axis Z lies on a plane parallel to a plane a of major extension of the body and perpendicular to a sliding direction of the rope.

Provided is a brake device (2) which has reduced manufacturing cost, is compact, and can generate sufficient braking force. Also provided is a crane (1) which comprises the brake device (2). The brake device (2) is installed in a movable body (1) which travels. The brake device (2) is provided with a receiving section (22) affixed to the movable body (1) and is also provided with a brake shoe (21) disposed below the receiving section (21). The brake shoe (21) has a brake shoe upper surface (24) provided with sloped sections (24u, 24d). The receiving section (22) has a receiving lower surface (26) corresponding to the brake shoe upper surface (24) and provided with sloped sections (26u, 26d). The brake device (2) is configured so that, when the brake device (2) is activated, the brake shoe (21) drops, and the receiving section (22) rides over the brake shoe upper surface (24) when the movable body (1) moves.

A rapid deceleration mechanism for a vehicle is provided herein. The rapid deceleration mechanism decelerates a body of the vehicle traveling on a road surface. The rapid deceleration mechanism includes at least one bollard attached to the body and at least one energetics arrangement. The at least one energetics arrangement propels the at least one bollard from the body toward the road surface to decelerate the body such that at least one of a portion of the body or the at least one bollard is deformed.

A braking system for slideway guided amusement vehicles providing both manual and automatic braking for the slideway guided amusement vehicles is provided. The braking system includes at least one brake handle, a first shaft fixed to the at least one brake handle, a first gear concentrically positioned on and free to spin independently of the first shaft, an actuator fixed to the first shaft for providing a linear motion to a stop pin, an inlet opening on the first gear for receiving the stop pin, a second gear coupled to the first gear, concentrically fixed on a second shaft for mounting spinnably and extending horizontally to a chassis of a vehicle, at least one friction member attached to the second shaft, a tensioning means, and a control unit adapted to remove the stop pin from the inlet opening via the actuator.