Device for drying the sizing of spun glass filaments or the like

Claim 1

Apparatus for drying the sizing of spun glass filaments being wound onto rolls comprising: groups of electrodes adapted for use with an alternating potential and disposed about a roll transversely to the direction of a filament being wound onto the roll; a housing having chambers, each of which is associated with each group of electrodes and which extends towards the roll so as to enclose the electrodes, each chamber being open towards the roll and having a gap between itself and the roll, while being hingedly joined to at least one adjacent chamber; a separate line for blowing hot air at more than 100° C. into each chamber; means for jointly moving each chamber and the associated electrode group to control the spacing of the electrodes from the surface of the roll, whereby the spacing of the housing from the surface of the roll follows the spacing of the electrodes; and means for controlling the power supplied to the electrodes.