Abstract: Procedure and apparatus for the optimized manufacture of coil springs on automatic spring winding machines. It is the object of the present invention to offer both a procedure and an apparatus by which even in case of fluctuating values of the wire parameters high accuracies during the spring manufacture are guaranteed and simultaneously the scrap is minimized. The solution to this problem is that prior to the winding the wire parameters are determined and the measuring results are used directly for the adjustment of the position of the winding pins or winding rollers and/or the pitch wedge, and that the wire between the uncoiling device and the guiding assembly forms a loop whereby the lateral deflection of this wire loop is measured by a recognition unit and the uncoiling device carries out an additional movement controlled by the recognition unit.

Abstract: An improved catch for safety belts embodying releasable locking of the catch tongue with a releasing element which by means of a pushbutton is manually movable to slide counter to a return spring and release a locking mechanism, and an automatic release system controlled by an electric signal generated by a sensor and having an electro-mechanical drive. The automatic release operation occurring after a given delay period, which starts anew after each signal, if several signals occur successively within the delay period. The electro-mechanical drive comprising a gear motor driven threaded spindle, and a drag nut on the spindle bearing against the releasing element. The drag nut releasing said releasing element for movement by the pushbutton. A switching element is provided which, upon release of the locking mechanism, acts on the gear motor to restore it to its starting condition prior to the electrical signal generated by the sensor.

Abstract: A mechanism for the automatic respooling of safety belts including a belt spindle rotatable in a housing and including a roll-up spring tensioned by the pull out of the belt and engaged by the belt spindle, and a friction brake relieving the belt pull back force. The friction brake including a first friction element connected to the belt spindle and a second friction element rotatably mounted and continuously in frictional engagement with the first friction element, and wherein the second friction element is fixed in angular relationship on the housing by means of a stop lever. The apparatus further comprises an automatically-functioning two-arm stop lever having a slot which is disposed about a pivot pin attached to said housing and said lever is pivoted on said pin and displaced or movable along said slot.