A system for locking a rotatable shaft may include a base member couplable to the rotatable shaft and rotatable about a rotation axis of the rotatable shaft through a plurality of angular positions, the base member comprises two or more curved slots; two or more pins positioned with respect to the base member such that at least one of the two or more pins is aligned with at least one of the two or more curved slots of the base member for any angular position of the base member; and an actuator to displace at least one of the two or more pins to removably insert at least one of the two or more pins into at least one of the two or more curved slots.

A securing device for securing a standstill of a vehicle, including a securing body having a bearing device for a movable bearing on the vehicle between a securing position (SP) and a release position (FP), and a counter-securing body having a fastening portion for a force-transmitting fastening to a wheel shaft of the vehicle. The counter-securing body includes at least one form-fitting portion for a form-fitting latching of a pawl portion of the securing body in its securing position (SP) and a release of the pawl portion of the securing body in its release position (FP).

A method comprises driving, by a motor, a camshaft of a transmission of a telesurgically operated instrument to a first rotational state of a plurality of rotational states. The camshaft defines a longitudinal axis and rotates about the longitudinal axis. The method further comprises engaging, in the first rotational state, a first input gear of a first effector drivetrain of the transmission with a first gear of the first effector drivetrain via a first power cam of the camshaft. The method further comprises disengaging, in the first rotational state, a first locker arm of the first effector drivetrain from the first gear via a first locker cam of the camshaft.

A load lowering descent controller having a fixed cylindrical body or capstan about which a rope or cable is turned. The descent controller allows for lowering of the load at a controlled rate by adjusting the amount of friction between the controller and the rope or cable as a function of rope or cable turning and relative contact with rope or cable engagement surfaces in the controller. The fixed cylindrical body or capstan is surrounded by a vented sleeve to prevent the rope from becoming heated and to prevent the user from being injured.

The present application relates to a wheel braking mechanism, a frame and a child carrier. The wheel braking mechanism includes a wheel base housing assembly, a braking assembly mounted in the wheel base housing assembly, and a braking pin connected to the braking assembly. A side wall of the wheel base housing assembly is provided with a sliding hole configured to allow the braking pin to extend through. The braking pin is capable of sliding in the sliding hole between a locking position and an unlocking position. The wheel braking mechanism further includes a dust shield. The dust shield is engaged with the braking pin and shields the sliding hole to prevent external debris from entering an interior of the wheel base housing assembly through the sliding hole.

A caster wheel brake system for carts and other wheeled articles is operable to secure caster wheels against rolling rotation along their horizontal rotation axes. The system includes a pivotable parking brake lever, an actuator arm, and a torque shaft extending between the brake lever and actuator arm. The brake lever includes a distal end portion for selectively engaging a caster wheel, a proximal end portion opposite the distal end portion, and a pivot coupling, the latter being pivotably secured to the cart or wheeled article. An actuator arm extends outwardly from a distal end portion of the torque shaft, with the actuator arm slidably engaging the proximal end portion of the brake lever. The torque shaft and the actuator arm are rotatable together to urge the brake lever toward the braking or non-braking position

Described herein is a system, method of use and Self Retracting Lifeline (SRL) apparatus using a system that governs a dynamic response between members causing a halt in relative motion between the members. Magnetic interactions, eddy current drag forces and centrifugal and/or inertial forces may provide various mechanisms of governing movement.

A vehicle wheel torque brace for inhibiting rotation of a vehicle wheel includes a brace body including a relatively thick stopper portion and a relatively thin wedge portion that is stepped down in thickness relative to the wedge portion. The wedge portion decreases in thickness from one side of the brace body to an opposite side of the brace body. A contact pad is carried by the wedge portion. The contact pad and wedge portion are shaped and sized to be wedged between a tire of the vehicle wheel and a strut assembly to inhibit rotation of the vehicle wheel.

A vehicle wheel torque brace for inhibiting rotation of a vehicle wheel includes a brace body including a relatively thick stopper portion and a relatively thin wedge portion that is stepped down in thickness relative to the wedge portion. The wedge portion decreases in thickness from one side of the brace body to an opposite side of the brace body. A contact pad is carried by the wedge portion. The contact pad and wedge portion are shaped and sized to be wedged between a tire of the vehicle wheel and a strut assembly to inhibit rotation of the vehicle wheel.

A rotary actuator has a stop module configured to mechanically link two gear stages travelling at different rotational speeds when an end-of-stroke travel limit is reached, thereby causing the rotary actuator to bind because relative motion between the gear stages is impeded.