Abstract: This clasp comprises at least two branches (1, 2) articulated on one another via one of their respective ends. One of the free ends of these branches (1, 2) comprises a lever (12, 22, 33) articulated about a shaft (10, 20, 32) parallel to the articulation shaft (3) of said branches (1, 2) and fixedly attached to a hook (17, 27, 33c), the other of the free ends of these branches comprising a coupling element (4, 34) shaped to allow the hook (17, 27, 33c) to engage therewith, to keep the branches (1, 2) in the folded position.

Abstract: This clasp comprises at least two branches (1, 2) articulated on one another via one of their respective ends. One of the free ends of these branches (1, 2) comprises a lever (12, 22, 33) articulated about a shaft (10, 20, 32) parallel to the articulation shaft (3) of said branches (1, 2) and fixedly attached to a hook (17, 27, 33c), the other of the free ends of these branches comprising a coupling element (4, 34) shaped to allow the hook (17, 27, 33c) to engage therewith, to keep the branches (1, 2) in the folded position.

Abstract: A bracelet clasp having two branches (1, 2) which are articulated to one another by a respective first one of their ends in order to make it possible to fold a first one of these branches over and/or into the second of said branches, and to unfold it in order to place it substantially in the extension of this second branch, while their respective second ends are intended to be connected to two ends of a bracelet. These two branches (1, 2) include mutual attaching structures (4, 10) for holding them in the folded position. The second end of the first articulated branch (1) includes linking structure (9) having parallel axes of articulation, one for connecting these linking structures to this first articulated branch (1) and at least a second one for connecting these linking structures (9) firstly to one end of the bracelet and secondly to an actuating member (18) for exerting a force capable of separating said mutual attaching structures (4, 10).

Abstract: A bracelet clasp having two branches (1, 2) which are articulated to one another by a respective first one of their ends in order to make it possible to fold a first one of these branches over and/or into the second of said branches, and to unfold it in order to place it substantially in the extension of this second branch, while their respective second ends are intended to be connected to two ends of a bracelet. These two branches (1, 2) include mutual attaching structures (4, 10) for holding them in the folded position. The second end of the first articulated branch (1) includes linking structure (9) having parallel axes of articulation, one for connecting these linking structures to this first articulated branch (1) and at least a second one for connecting these linking structures (9) firstly to one end of the bracelet and secondly to an actuating member (18) for exerting a force capable of separating said mutual attaching structures (4, 10).

Abstract: A punching and stamping machine has a movably guided die plate frame, in which an eccentric shaft for the drive of the die is simultaneously disposed. The die plate frame is moved by means of a plate cam which is directly coupled with the eccentric shaft As a result, a forcibly guided movement is achieved between the die and the die plate which, with respect to the workpiece to be machined, is superimposed such that the die carries out only minimal movements with respect to the workpiece and therefore, particularly in the case of a hollow-cylindrical workpiece, permits the machining from the interior side to the exterior. As a result of this forced guidance, very high operating speeds can advantageously be achieved with a high precision.

Abstract: In a sun-and-planet toothed wheel gearing the width of the tooth spaces of the toothing of the hollow wheel is preferably made three times larger than at a common toothing with substantially the identical widths of the teeth and tooth spaces. Such a inventive toothing can be produced specifically simple and precise by means of non-cutting methods, preferably an impact rolling.

Abstract: In order to attain a superior performance of a sailboat (1) under different conditions, e.g., dead calm, average winds, high waves, etc., the invention makes possible that the two longitudinal sides of the hull essentially correspond with the gliding surfaces (11,12) of surfboards. These gliding surfaces are arranged in the shape of a V, may contact one another within the central region (T) of the watercraft (1) and transform into a transition area that forms the bow within the front region by providing additional side walls (15,16).