METHOD AND DEVICE FOR CONTROLLING THE TEMPERATURE VARIATION IN A POTTER'S KILN

摘要

1519562 Automatic control of heating KERAMISCH INSTITUT HAARLEM BV 27 Jan 1977 [6 Feb 1976] 03369/77 Heading G3N The power supplied to a heater in a potters kiln is regulated by the temperature measured on an outside wall of the kiln so that the rate of heating can be controlled. As shown a heating element 2 in the kiln is supplied from mains 3 through a bi-metallic switch 4 which has a heater 5 connected in series with the parallel switched circuits 6-9 so that the current through heater 5 can be controlled thus changing the power supplied to the kiln. Temperature sensitive switches T1-T3 are attached to the outer wall of the kiln and are normally closed. As the kiln heats up so the switches open to apply more power to the kiln raising the internal temperature in a series of steps. Switch 10 can be closed to provide a manually over-riding minimum power feed to the kiln.