Apparatus for the preparation of seams which are to be pressed

Apparatus for opening and spreading the legs of a seam joining two fabric parts, preparatory to the pressing of the legs of the seam, comprising a first rail having an edge against which the legs of the seam are to be guided, a second rail parallel to the plane in which the pressing is to be effected and having an edge against which the sewn together fabric parts are to be tensioned, the edge of the first rail being spaced from the edge of the second rail toward the center of the second rail by a distance at least equal to the length of one of the legs, the edge of the first rail extending at an angle of from 60 DEG -90 DEG toward the second rail, the edge of the first rail being at a distance from the second rail predetermined by the thickness of the fabric parts, arranged at the side of the first rail facing away from the guiding edge of the first rail, means for driving the fabric parts toward the pressing means and obliquely away from the first rail, the means thereby exerting a component of force transversely to the direction of transport of the fabric parts as well as a component of force in the direction of transport of the fabric parts and immediately adjacent the terminus of the first rail in the direction of transport of the fabric parts, a seam opener and a seam spreader.