| 摘要 |
1,240,458. Drying apparatus. VITAFOAM Ltd. 8 Jan., 1969 [26 Oct., 1967], No. 48639/67. Heading F4G. In drying or curing material (e.g. polyurethane) in moulds 14, the moulds 14 are conveyed through the chamber 10 in which the material is dried or cured by hot air jets issuing from adjustable nozzles 19 mounted on tubes 18 extending along the chamber 10, the air being heated in chamber 15, e.g. by a gas burner, and supplied therefrom to the nozzles 19 by fan 16 and being returned from chamber 10 to the chamber 15 for recirculation. |
