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G05D—SYSTEMS FOR CONTROLLING OR REGULATING NON-ELECTRIC VARIABLES
G05D23/00—Control of temperature
G05D23/01—Control of temperature without auxiliary power
G05D23/13—Control of temperature without auxiliary power by varying the mixing ratio of two fluids having different temperatures
G05D23/1393—Control of temperature without auxiliary power by varying the mixing ratio of two fluids having different temperatures characterised by the use of electric means
Vorrichtung zum selbsttaetigen Steuern der Drehzahl von Kommutator-Motoren, insbesondere zum Konstanthalten der Aufbaeumgeschwindigkeit an mittels Kommutator-Motoren angetriebenen Schermaschinen