Braking device of linear moving operating devices

In a brake means for linearly moving operating devices that include a drive means, which is reciprocatingly movable along the operating device, wherein the brake means includes a bar that extends parallel with the path of movement of said drive means and which accommodates a pressurizable hose-like element extending along the bar, the improvement which comprises a slat spring mounted in the bar and extending along one side of the hose-like element, a brake device disposed along said slat spring and movable transversely to a longitudinal direction of the hose-like element and said slat spring and located adjacent one longitudinal edge of said slat spring for movement transversely to said longitudinal direction and substantially in a plane of said slat spring when the hose-like element is placed under pressure and said slat spring outwardly flexed, and further comprising a slide shoe which is guided in said bar and connected to said drive means and which is selectively actuated by said brake device that moves towards the slide shoe.