Abstract: An arrangement for integrating an analog voltage signal and for converting it into a corresponding digital signal, whereby during a measuring cycle, the analog signal is fed via a comparator to a counting circuit, which to provide the time-related control of the operation of the counter is connected to a variable clock frequency generator device controlled by the analog signal. The comparator is connected to a "D"-flipflop, which is connected to an up-down counter with a digital-to-analog converter, on whose counting input is provided the Q-output of the variable clock frequency generator, which changes its clock frequency according to the absolute value of the voltage to be integrated.

Abstract: A ball screw system has a screw (1, 2) and a nut (3) mounted thereon by means of balls (5). Redirecting portions (6) which delimit redirecting channels for circulating balls running in thread grooves of the screw and the nut are formed in openings extending transversely in the nut. The openings in the nut are filled with an initially liquid, solidifiable or curable material. The redirecting ball or recirculating channels are thereby cast therein.

Abstract: To permit constructing flexible belt-rack longitudinal-movement structures of substantial length, not subject to vibration, and inexpensively built, the rack (3) is cast integrally with a slab (2) of plastic concrete. A stiffening rib (33) can be provided in the slab, preferably at the side remote from the movable machine element (7), and preferably formed with a through-bore to attach a tension rod therethrough, so that a plurality of such slabs can be longitudinally connected together. Guide rails (5) are located at the sides of the slab, on which slide bearings (6) are located which, in turn, support a movable carriage, movable along the bed. The carriage carries the drive motor (17) which drives a gear belt (22) for engagement with the rack.

Abstract: An apparatus for recognizing relative extrema in a dispersive digital data word sequence which includes relatively few, simple component elements specifically including a comparator which generates a positive or zero logic signal depending on the sign of the word comparison between two successive words, a counter operating within a limited numerical range for counting the comparator output signals upward or downward, and a threshold detector responding when a given counter status is exceeded or fallen short of for maximum or minimum indication, and which due to its structurally and operatively simple design ensures real-time processing of scattering data word sequences with a high word frequency, e.g., 500 MHz.