The replaceable top comb (Fig. 47, F and Fig. 48) is arranged between nippers (Z) and detaching rollers (A) so that the fiber fringe can be drawn through the needles of the top comb during detaching. The top comb usually comprises a holder (Fig. 48, H) to which needle bar (B) is secured by screws. The needles are soldered to the bar.
The holder mounts the top comb on the lower nipper plate so that the top comb swings with that plate. The needles have a flattened cross-section and a bend. Apart from its participation in the swinging movements of the nippers, the top comb is fixed, i.e. it is not subject to any additional and complicated up-and-down movements. During detaching the fiber fringe is pressed into the needles of the comb automatically. The depth of penetration is very important and is therefore designed to be adjustable. The spacing from the detaching rollers is also adjustable.