The brake assembly includes a housing, a rotor disc. The rotor disc includes at least one internal cavity. The at least one internal cavity includes a pawl and a thermal fuse. In use, the thermal fuse is configured to maintain the position of the pawl in the at least one internal cavity when a temperature is below a predetermined threshold, and wherein the thermal fuse is configured to melt when a predetermined threshold of temperature is reached during braking to release the pawl out of the at least one internal cavity towards the housing. The housing includes at least one recess configured to receive the pawl.

The present invention provides a safety training device capable of being attached to an existing front-wheeled walker. The safety training device a modified ski unit, a braking mechanism, a brake cable and hose. When improper transfer techniques are utilized by a patient, the modified ski unit engages the brake and cable hose to exert a force to the braking mechanism. The braking mechanism activates a braking member on the wheel of the walker, halting further movement of the patient and walker. Simultaneously, a striking member of the braking mechanism makes contact with the frame of the walker, producing an audible cue, alerting the patient and any healthcare professionals present that improper technique is being used in a transfer.

Machines with safety systems are disclosed. The machine may take the form of woodworking machines including table saws, band saws, miter saws, hand-held circular saws, pneumatic chop saws, radial-arm saws, jointers, planars, routers and shapers. The machines may include an operative structure configured to perform a task, where the operative structure includes a cutting tool adapted to move in at least one motion, and a safety system adapted to detect the occurrence of an unsafe condition between a person and the cutting tool and for mitigating the unsafe condition. The safety system may include a detection subsystem and a reaction subsystem. The machine may also include a bypass or override mode where in an injury mitigation system is disabled for certain cuts.

Provided is a vehicle speed control device with respect to which the speed at which a centrifugal brake operates can be easily changed from the outside without disassembling the device. A brake drum 11 is fixed to a vehicle body 101a. A brake shoe 23 rotates around a rotary shaft 20 of the wheel 101c, and reduces the rotation speed of the wheel 101c as a result of coming into contact with an inner circumferential side face of the brake drum 11. A spring 24 prevents contact between the brake drum 11 and the brake shoe 23 when the rotation speed of the wheel 101c is lower than or equal to a predetermined speed, and permits contact between the brake drum 11 and the brake shoe 23 when the rotation speed of the wheel 101c exceeds the predetermined speed. A position change mechanism 25 is installed within the brake drum 11, and changes the position of an end of the spring 24 on one end side. A transmission mechanism 26 transmits a force that is input by an external operation to the position change mechanism 25 and drives the position change mechanism.

Machines with safety systems are disclosed. The machine may take the form of woodworking machines including table saws, band saws, miter saws, hand-held circular saws, pneumatic chop saws, radial-arm saws, jointers, planars, routers and shapers. The machines may include an operative structure configured to perform a task, where the operative structure includes a cutting tool adapted to move in at least one motion, and a safety system adapted to detect the occurrence of an unsafe condition between a person and the cutting tool and for mitigating the unsafe condition. The safety system may include a detection subsystem and a reaction subsystem.

Safety brakes for circular saw blades, circular saws that include the safety brakes, and methods of operating circular saws are disclosed herein. The safety brakes include a sensor assembly, a brake assembly, and an actuator assembly. The sensor assembly is configured to detect an actuation parameter and to generate a trigger signal responsive to detection of the actuation parameter. The brake assembly includes a brake cam and a brake pad. The brake cam is configured to selectively transition between a disengaged configuration and an engaged configuration and is configured to operatively engage a planar side surface of the circular saw blade. The brake pad includes a pad friction material and is positioned such that the pad friction material faces toward the brake cam. The actuator assembly is configured to selectively transition the brake cam from the disengaged configuration to the engaged configuration responsive to receipt of the trigger signal.

The present invention provides a safety training device capable of being attached to an existing front-wheeled walker. The safety training device a modified ski unit, a braking mechanism, a brake cable and hose. When improper transfer techniques are utilized by a patient, the modified ski unit engages the brake and cable hose to exert a force to the braking mechanism. The braking mechanism activates a braking member on the wheel of the walker, halting further movement of the patient and walker. Simultaneously, a striking member of the braking mechanism makes contact with the frame of the walker, producing an audible cue, alerting the patient and any healthcare professionals present that improper technique is being used in a transfer.

A magnetorheological brake device has a stationary holder and two brake components. A first brake component is connected to the holder for conjoint rotation and extends in the axial direction. A second brake component includes a hollow sleeve part which can rotate about the first brake component. A gap is formed between the first and second brake components. At least one, two or more rotatable transmission components are arranged in the gap. The gap is filled with a magnetorheological medium. The first brake component has a core which extends in the axial direction and is made of a magnetically conductive material, and an electrical coil which is wound about the core in the axial direction, such that a magnetic field generated by the electrical coil extends across the first brake component.

A magnetorheological brake device has a stationary holder and two brake components. A first brake component is connected to the holder for conjoint rotation and extends in the axial direction. A second brake component includes a hollow sleeve part which can rotate about the first brake component. A gap is formed between the first and second brake components. At least one, two or more rotatable transmission components are arranged in the gap. The gap is filled with a magnetorheological medium. The first brake component has a core which extends in the axial direction and is made of a magnetically conductive material, and an electrical coil which is wound about the core in the axial direction, such that a magnetic field generated by the electrical coil extends across the first brake component.

The mobile storage rack includes a storage rack frame for moving on ground rails, wheels carried by the bottom frame for engaging the ground rails and allowing displacement of the storage rack along the rails, and shelves carried by the frame for supporting articles. The storage rack has a braking apparatus including a unitary braking shaft made of a single shaft segment, a support structure rotatably carrying the braking shaft in cantilevered fashion, the support structure being attached to the storage rack frame, a braking shaft link carried by the braking shaft away from the support structure along the braking shaft, the braking shaft link linking the braking shaft to the storage rack wheels, a triggerable brake actuator that acts on the unitary braking shaft to stop the rotation of the braking shaft when triggered, and a dampener located between the braking actuator and the unitary braking shaft.