Abstract: A cleat system for sports shoes, especially football shoes, comprising a downward opening socket in the outsole, provided with at least two circumferentially spaced first supporting surfaces at the inside thereof facing away from the socket opening, a cleat body, a fastening portion connected to the cleat body through which the cleat body is adapted to be detachably connected to the socket and which has at least two circumferentially spaced mounting surfaces integrally formed thereat facing the cleat body which upon insertion and after rotation of the fastening portion through a predetermined angle of rotation come to lie against the first supporting surfaces substantially under surface contact, a further mounting surface formed integrally with the cleat body which comes to lie against the outsole under pressure from below when the supporting and mounting surfaces are in engagement with each other, and locking means effective between the fastening portion and the socket which resists a backward rotational mov

Abstract: A device for tensioning belts or the like, comprising a first portion adapted to have one end of the belt fastened thereto and a second portion adapted to be brought into engagement with a portion of the belt spaced through a distance from one end of the belt and locating the same in the tensioning position vis-a-vis the first portion, whereby the two portions which are formed of synthetic material are adapted to be connected to each other and to the belt in a manner to be pivotable such that upon pivotal movement into the tensioning position a limited shortening occurs in the length clamped by the belt between the two points that have been established, and in that the portions are interlockable in the clamping position via an arresting connection, said arresting connection being releasable by means of an actuation portion accessible from outside.

Abstract: Filling and discharging valve for inflatable hollow bodies, particularly dinghies, comprising a valve housing having a radial flange adapted to be attached to the inflatable body and a valve seat facing the interior of the inflatable body, the valve seat co-operating with a plate-like valve member. A spring is located within the valve housing and biasing the valve member towards the closed position thereof. Holding means hold the valve member in the opened position. A dead center spring above the valve member includes a dead center spring which is secured to the circumference of the valve housing. The dead center spring holding the valve member in its close position above the dead center and holds the valve member in its opened position below the dead center.

Abstract: A cleat for sports shoes, especially football boots, comprising a socket situated in the outsole, a cleat body, a fastening attachment via which the cleat body is detachably connectible to the socket, and a supporting surface formed integrally with the cleat body thereat said supporting surface coming to lie in close contact against the outsole from below, with at least two circumferentially spaced downward pointing bearing surfaces formed at the fastening attachment which, upon insertion and after rotation of the fastening attachment through a predetermined angle of rotation come to lie in close contact against supporting surfaces in the socket under pressure, with the other supporting surface of the cleat body coming to lie in close contact against the outsole under a compression pressure, and with a means of safety against rotation provided between the fastening attachment and the socket.

Abstract: A one-piece fastening element of synthetic material, comprising a head and a relatively rigid axial shank adapted to be inserted into the aperture of a workpiece. The shank is formed with two or several axial rows of flexible lamellar radial ribs formed integrally with the shank in circumferentially offset and axially spaced arrrangement.

Abstract: A pendulum sensor avoids undesired actuation by employing specially designed contact surfaces between a pendulum head and a pendulum support. Each contact surface includes a circumferential inclined portion. The inclined portions are disposed at an angle with reference to a vertical plane. The pendulum support includes an upwardly extnding circumferential projection. The sensor may be used in a safety belt retractor in a vehicle.

Abstract: A seat belt retractor of the inertia type comprises a rotatable shaft with a cam-surface driven thereby. A locking element movable on the cam surface is positively displaced by a control element fitted in a recess thereof and acting from an inertia element. The locking element, when driven by the inertia member, engages with the teeth on an annular locking ring to stop retraction of the seat belt attached to the shaft. The inertia element may be spring preloaded and a locking wheel may be provided to provide alternative locking torque for the inertia element when the car assumes a roll-over condition in which the seat belt would not ordinarily retract quickly.