Abstract: A method and apparatus for measuring and indicating limiting values for driving and braking vehicles in which a measuring wheel can be raised and lowered from a conventional wheeled vehicle to engage and disengage a substructure. The wheel is driven with a predetermined slip in relation to vehicle speed and the resulting loads detected by suitably mounted transducers. The signals produced by the transducers are combined in an electronic unit and displayed to indicate the braking force number, the coefficient of friction and resistance to rolling.

Abstract: A flexible shaft for transmitting torque, comprising a flexible hose, inside which there is provided, between two mutually separate torque-transmitting means for input and output of torque, a flexible core lying in contact with the inner circumference of the hose at several places. A shaft of this type is included in the torsion-stiff connection between the steering wheel and steering gear on a vehicle.The present invention relates to a flexible shaft for transmitting torque.Various different kinds of flexible shafts are previously known. One kind, for example, comprises a close-lapped helical spring while another kind comprises a conbination of a helical spring inside which a rotatable wire is arranged. A further kind comprises a tube having circumferential, adjacent folds. What is common for these and other similar kinds of flexible shafts is that it is difficult to unite great torque-transmitting ability with great flexibility.