Abstract: A brake unit for a skip or carriage adapted to ride on one or more cables. The brake unit has brake jaws spanning the cable, said unit being connected to the skip so as to move along the cable therewith. The connection to the skip is such that when the latter is moved in one direction, the jaws slide along the cables, but when the skip moves in the opposite direction, the jaws grip the cable in a braking action. The brake unit has adjusting means which is operable to adjust the gripping action of the jaw anywhere from a complete grip preventing movement of the skip to release of the cable so that the skip can move freely therealong.

Abstract: The invention contemplates a bicycle-braking system in which the rear-wheel brake is selectively operable, in which rear wheel braking torque is the means of actuating the front brake, and further in which substantial force-amplification characterizes the actuating connection between (a) rear-wheel torque-reaction pick-off and (b) front brake actuation. Rear-wheel braking torque is noted by physical displacement against a spring, so that if front-wheel brake torque becomes so effective as to substantially reduce rear-wheel brake torque, the spring will automatically react to reduce the magnitude of front-wheel brake effort.

Abstract: The device comprises a magnetic inertia block connected to return means fixedly mounted onto either a pulled vehicle or a pulling vehicle, magnetic transducer positioned adjacent the magnetic inertia block and connected to a current source, treating means connected to said magnetic transducer, output of said treating means being connected to the brakes of the vehicle.