A ski safety binding comprising a front binding unit and a backbinding unit, parts of these units being mounted on the bottom side of the sole of the ski boot and parts being mounted on the ski trunk, for releasable engagement within each unit, whereby the engagement in each unit is obtained by a pair of jaws under spring tension which may be overcome by extraordinary movement of the boot sole so as to be released from the engagement.

A ski brake preventing free flight of the ski upon its inadvertent release from the ski boot comprises a U-shaped stirrup whose shanks straddle the longitudinal edges of the ski and are provided with braking elements and a pair of torsion rods connected to the shanks and received in a mounting retaining the surface of the stirrup on the ski. When the bight of the U-shaped member is held against the ski by the ski boot directly or a plate of the ski binding, the brake elements are swung upwardly ...

To enable a passenger to ride a "roller coaster" in a standing position, the inventive device includes a seat placed between the legs of the passenger, a back member with a headrest incorporated in it, and two harnesses which provide retention of the passenger from above as well as lateral retention of his head and good front and lateral retention of his body. One of the harnesses is movable and can be swung upwardly to enable easy access to the subject device by the passenger and to enable a ve...