Westinghouse Sort Of Had Timed Surface Units in 1941
I was going through some old range manuals last night and made a discovery. In 1941, Westinghouse ranges had unusual names for the models. At the top of the line were the Emperor, Regent and Commander. There was a round dial under the surface unit switch that functioned more like Frigidaire's auto-switch heat control for their Thermizer unit. Frigidaire's Thermizer heat control had a timed portion of the control for HIGH heat after which it switched to SIMMER, I think, to finish cooking.
The Westinghouse Single Set Switch offered a several possibilities in its automatic switching to a lower heat. For most cooking operations, the pan of food was placed on the unit and the surface unit switch was set to SIMMER. Then the Single Set Switch was set to the length of time the unit needed to operate on HIGH before switching to SIMMER. It would then operate on that heat until manually shut off.
If used with the Economy Cooker, the surface unit switch was set to LOW and the Single Set Switch was set to the full 30 minutes to make sure the lower wattage unit had enough time to bring the 5 quart pan to a boil on HIGH before switching to LOW, the heat setting used to finish all cooking in the Economy Cooker. A third sort of strange way of using the feature was to leave the surface unit switch in the OFF position and just use the Single Set Switch. They give the example of cooking dried fruit. The surface unit switch is left in the OFF position and the Single Set Switch was set for 30 minutes. This caused the surface unit to operate on the MEDIUM HIGH for the selected time and then switch to OFF, using the stored heat in the element to finish cooking. Westinghouse was a strong proponent of cooking with the current off using the stored heat in the unit.
I guess that this feature was a casualty of the war. It was available on two surface units of the Emperor and one surface unit and the Economy Cooker on the Regent and one surface unit on the Commander. Maybe it was too complicated.