. Thermostatic control of electric heating appliances . P The em-ployment of such a strip as mentioned above isshown in the sketch, Plgo 4. The operation is asfollows:- When the heater is first connected tothe line the strip is in its normal position, thatis flat against the surface of the heater, in con-tact with the heating element, and the contact atA is then open. When the temperature of theappliance reaches the point of the maximum valuewhich it is desired that it should maintain constantthe adjustment of tbe contact point is such as toclose at A. This ehants the magnetic
. Thermostatic control of electric heating appliances . P The em-ployment of such a strip as mentioned above isshown in the sketch, Plgo 4. The operation is asfollows:- When the heater is first connected tothe line the strip is in its normal position, thatis flat against the surface of the heater, in con-tact with the heating element, and the contact atA is then open. When the temperature of theappliance reaches the point of the maximum valuewhich it is desired that it should maintain constantthe adjustment of tbe contact point is such as toclose at A. This ehants the magnetic relay whichwill cause the magnet to de-energize and the springto release, the armature thus opening the circuitthru the auxiliary heating element. VTaen the con-tact Is broken at A, due to the tendency of thestrip to assume its normal position, as soon as thetemperature falls below that value which the thermo-stat is to regulate, the magnet will be energizedand will close the circuit thru the upper element byattracting the armature mounted above.
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Keywords: ., bookcentury1900, bookdecade1910, bookidthermostatic, bookyear1917
