ELECTRIC ELEVATOR FURNACE Russian patent published in 1995 - IPC

FIELD: furnaces. SUBSTANCE: furnace has housing 1 provided with heaters 5 and carriage with tank 4, lifting mechanism, and pan 14. The lifting mechanism is mounted in the bottom and made up as a screw-nut transmission. A motor sets nut 10 in rotation which in turn set the screw rigidly coupled with pan 14 in axial reciprocation. Tank 4 is provided with water gate 3. Pan 14 interacts with gate 3 when end parts move. To prevent rotation of the pan guides 17 are secured to the gate. EFFECT: decreased sizes and metal usage. 2 dwg