a brake device arrangement aligned with the wheel instead of being located to one side of the wheel periphery also it will be appreciated various of the arrangements and modifications described and illustrated for one form of the invention may be similarly applicable with modification or adaption as necessary to the other forms of the invention described and illustrated by way of example thus by this invention there is provided a relatively simply constructed but safe effective and strong braking device providing for a locked neutral position a locked fully brake on position and a safety restrictive reverse rotation brake position the braking device may be simply and readily fixed to existing or new wheel chairs in the preferred form of the invention but as previously indicated the braking device may be similarly applicable to and attached to other wheeled constructions such as a peramulator or other wheeled trolley or like vehicle and it will be further seen that the invention may also be applicable to such as any other wheel device or to a moving surface such as the surface of an endless loop belt or to such as a rope or cable in the latter case it is envisaged that the invention can have particular application in such as yachting and for the controlled but fast and effective braking releasing and hawling in of rigging or other ropes lines cables or the like whilst the braking device is particularly effective with resilient surfaces such as.