An automatic regulator for electric, steam or hot water radiators, the same being also applicable for gas heating, fire alarm devices, refrigerating control and other temperature control uses

摘要

200,124. Maclaren, R. June 20, 1922. Thermostats.-Relates to thermostatic apparatus for controlling the temperature of electric or hot-water radiators or heating and cooling apparatus of the type, such as is described in Specification 191,515, comprising a U-tube A containing an expansible fluid and mercury H and provided with electrodes connected to a solenoid controlling an electric switch. In order to avoid sparking when the apparatus is used in a town supply up to 250 volts, a condenser B1 is connected across the terminals of the solenoid C and a second condenser B2 across the electrodes in the U-tube. A single U-tube with an enlargement F is employed and carries, in addition to the fixed electrode E1 always in contact with the mercury, only one other electrode E to regulate the maximum temperature, such electrode being ground with a flat face K. Plungers inserted at D or D1 regulate the temperature at which the apparatus responds.