Abstract: This ski boot is intended for properly and automatically positioning same on the ski without any preliminary adjustment of the safety binding in the longitudinal direction, irrespective of the boot size. The boot comprises a sole truncated at either end so as to provide a ski-engaging bottom bearing surface having a constant length independent of the boot size, the middle point of the sole being adapted to register with a reference mark carried by the ski; the end faces of the truncated sole are provided with recesses, cavities, grooves or projections adapted to co-operate with corresponding elements of the toe-end and heel-end devices of the safety binding.

Abstract: This safety ski binding for protecting the skier's leg in case of abnormal lateral torsion and forward and backward fall comprises essentially a hollow case pivoted to the ski and enclosing spring controlling the pivotal movements of the case as well as hooks carried by this case and cooperating with studs projecting laterally from the ski boot. The protection is ensured in case of combined torsion and toe-lift and heel-lift movements. Quick-release and quick-fitting are also provided, together with adjustment of the hardness of the release mechanism.

Abstract: In this ski-boot and ski-binding assembly the boot comprises lateral protruding anchoring members disposed at a same distance from, and on either side of, the middle point of the boot, and the ski carries on its top a flat case having a central "O" mark coincident with the corresponding "O" mark of the ski; on either side of the flat case pivotally mounted hook means disposed at equal distances from the central "O" mark are adapted releasably to retain the boot by engaging the anchoring members of the boot. These anchoring members and hook means may be disposed by pairs, and the anchoring means may consist of the opposite ends of transverse metal rods embedded in the material constituting the sole of the ski-boot. Possibly, a single flat metal member may be used to provide the anchoring members, or the rods may be interconnected by a perforated metal plate.

Abstract: This captive screw device consists of a resilient retaining support for holding screws in predetermined positions in alignment with or within through holes formed in a member to be fastened by said screws to another member or a structure. Each support comprises a split socket or washer of which the central hole is either threaded or somewhat smaller than the diameter of the screw stem; overlying this hole is a tapered cup engageable by the screw head, and underlying this hole are a pair of legs adapted to clamp by snap engagement the member to be fastened; a plurality of such supports may be interconnected for retaining several screws in position; screwing the screws home will cause the screw head to engage said cup and expand the support so as to distort same and eventually break it, thus causing its ejection or at least facilitating its removal.

Abstract: A hand-operated support for a hooking member which is adapted to engage with a toothed rack rigidly fixed on the ski is maintained in the engaged position by means of locking bosses carried by the boot-binding member and adapted to produce action only when the binding member has been displaced in the longitudinal direction under the pressure exerted by the ski boot when this latter is placed in position, thus preventing any accidental displacement of the hooking member while the ski is in use.

Abstract: A rotary plate for a heel hold-down device of a ski binding has a central opening formed with a notch or projection along its edge and adapted in its normal angular position to engage a corresponding projection or notch, respectively formed in a fixed member; a spring means constituting with the notch and projection a detent-positioning device constantly urges the rotary plate in the longitudinal direction within the limits of a predetermined play.

Abstract: In a safety ski binding, a heel hold-down device has a heel retaining member urged by spring means to its heel retaining position and is pivotally mounted by means of a pair of lateral arms extending upwardly and rearwardly from a transverse horizontal axis, these lateral arms having their upper ends interconnected by a shaft extending through the retaining member, this shaft being rigid with a bow-shaped element of which the central section normally bears against the ski surface. Spring means constantly urge the retaining member to its inoperative position and may consist of a single steel wire coiled along lateral portions thereof formed with end loops slidably engaging the relevant lateral arms.

Abstract: Ski brake comprising a pair of braking members adapted to be disposed on either side of the ski, a transverse pivot pin extending across the ski and about which said members are adapted to pivot, and a control pedal adapted to be actuated either by the ski boot or by a ski-binding plate supporting said ski boot. Said control pedal consists of a rigid metal wire shaped to a bow configuration and rigid with said pair of braking members, and the ski brake also comprises a return spring consisting of a loop of resilient metal wire having one end attached to said control pedal and bearing with the opposite end upon the ski at a point spaced longitudinally in relation to said braking member pivot pin, the dimensions of said resilient wire loop being such that in its normal shape said resilient wire normally urges said control pedal to its raised position above the ski and said braking members to a position in which they project downwardly from the lower surface of the ski.

Abstract: A safety ski binding includes a movable boot supporting plate detachably secured to a ski. A retaining bolt mounted on the ski for both longitudinal and pivotal movement engages a recess or ramp formed on one end of the plate and is held against movement by a spring biased piston engaging a camming surface mounted on the bolt or the ski with the piston mounted on the other of the bolt or the ski. The other end of the plate is held to the same by any suitable device. The contour of the camming surface determines the value of the resilient resistance holding the bolt against movement.