Abstract: Apparatus for sizing warps made of textile threads for the weaving process by application of a sizing liquor by means of rollers and subsequent removal of the excess liquor by roller conveyance through dehumidification--and drying zones, where following upon a preparation zone with an inlet guide roller at least one size application roller respectively facing the one or the other side of the warp is disposed, where the size application rollers are provided with sizing rollers motor driven with selection of the rpm and/or direction of rotation disposed slighty below the size application roller, this for observing the previously selected sizing application thickness, with the sizing rollers dipping with at least one-third of their circumference into the sizing liquor fed into tanks disposed beneath the size application rollers and where furthermore the rotational axes of the sizing rollers disposed beneath the size application rollers and the rotational axes on the size application rollers lie on a straight lin