a gearbox (15) powering a drum mounted to a mounting plate (2),equipped with a jaw brake operated by a screw,where the mounting plate (2) and the mounting ring (8) have holes of the same size, allowing the mounting of the individual parts of the hinge in different positions.The purpose of the notification is a high pressure generator comprising a body (1) with handle (2) and head,characterised by the presence of a detached mushroom valve attached to the body (1),