Mechanical counter, 1888.

Engine counter, 6 figures, by Schaeffer & Budenberg, Baukau, Madgeburg, Germany, for reciprocations or revolutions

6 figure engine counter by Schaeffer and Budenberg of Manchester, 1888. The counter could be used to count revolutions of a piece of mechanism or reciprocating actions. This is an instrument arranged for counting either reciprocating motions or revolutions; it contains a vibrating lever, to which motion may be given direct, and also a crank by which the lever may be vibrated when it is desired to count revolutions. A toothed wheel on the spindle of the dial containing the unit figures is driven by the lever by means of a movement very similar to the escapement of a clock reversed. Another wheel on the same spindle, having one tooth only, drives intermittently a wheel with ten teeth on the spindle of the tens dial, and so on throughout the series.