| 摘要 |
992,420. Boiler furnaces. SOC. D'ETUDE ET DE CONSTRUCTION DE CHAUDIERES EN ACIER SECCACIER S.A. March 2, 1962 [May 26, 1961], No. 8123/62. Headings F4B and F4W. In a boiler furnace, particularly for domestic central heating, fuel is fed from a hopper 1 by a pusher 3 operated by a thermostatically controlled motor through gearing such that the pusher 3 and air supply fan are in operation at the same time. The air supply fan may be driven by the pusher motor or by a separate motor, the motor or motors being stopped when the water temperature reaches a predetermined value. |
