NORCROSS

VISCOMETERS FOR MEASURING VISCOSITY, RECORDERS AND INDICATORS RESPONSIVE TO ELECTRICAL SIGNALS FROM VISCOMETERS FOR RECORDING AND INDICATING MEASURED VISCOSITY AND TEMPERATURE AND FOR ACTUATING SIGNAL LIGHTS OR ALARMS, AND ELECTRIC CONTROLS FOR CONTROLLING THE OPERATING FREQUENCY OF THE VISCOMETERS AND RESPONSIVE TO ELECTRICAL SIGNALS FROM RECORDERS AND INDICATORS TO ELECTRICALLY OR PNEUMATICALLY ACTUATE VALVES AND SWITCHES TO CONTROL VISCOSITY, AND COMPONENTS THEREOF