Abstract: A converter for converting binary codes into mechanically controlled movements which contains adjustment means which by means of an outside signal source is given a special adjustment for each code, a plurality of sets of cam discs, mounted and axially displaceable on a common shaft and adjustable individually with respect to a zero position of the adjustment means, each set of cam discs is disposed with axial cams facing one another, and stopping means and entrainers cooperating with the adjustment means, and that a converter drive system comprises an axial arrangement of the cam disc sets arranged on the common shaft which passes through the converter and on which a cam disc forming part of a pair of cam discs of each set is journalled and driven in an oscillating movement by an indexing mechanism which is driven by rotating means to produce limited relative movements between the discs in the respective cam sets, transformed into axial displacements of the discs relative to the zero position.

Abstract: An automatic timekeeping and accounting unit is provided which has particular utility for use by professional persons such as lawyers, accountants, and the like. The unit of the invention keeps track of the person's working activities during the day, and it also serves to record the time and subject matter of interrupting telephone calls, if the user so desires, along with information relating to other work activities. The unit to be described also includes a simple switch which converts the unit into an electronic calculator for performing additions, divisions, subtractions, multiplications, and other calculations, similar to the commercially available solid state pocket calculators, without affecting its timing capabilities.