Edge straightener for smoothing the borders or simile of moving bands of material

1505855 Smoothing webs ERHARDT & LEIMER KG 14 Nov 1975 [18 Dec 1974 30 Sept 1975] 47049/75 Heading B8R The rolled edges of a web 1 are smoothed by a current of air or steam 6. The web is supported on a guide plate 5 and the current is directed against the rolled edge 4 by an array of nozzles 9 provided in a flow directing plate 11, the nozzles being directed obliquely downwards towards the guide plate. The flow directing plate 11 converges towards the guide plate 5. A further current may be directed between the plates. Both plates may be provided with a nozzle array, alternatively operable. The flow directing plate may be domed. Each nozzle may be rotatably located in its associated plate for adjustment. In Fig. 11, compressed air 18 flowing through nozzle body 16 attracts the web 1 to the guide plate 5 and induces suction which generates a smoothing air current 6 through openings 15.