A sewing system is disclosed for facilitating the sewing together with a sewing machine ends of at least two webs that are held by a spooling machine. A substantially horizontal carriage rail is supported by a support mounting means in fixed relationship with the spooling machine and itself slidably supports a sewing carriage adapted to hold the sewing machine. A trimming carriage is also slidably supported on the carriage rail and supports a conventional trimming machine that trims the ends of each web ahead of the sewing machine. The trimming carriage is selectively and mechanically fixed with the sewing carriage with a mechanical fastener, so that as the sewing carriage is moved along the carriage rail, the trimming carriage is also moved along thereby. A substantially horizontal support platform is fixed with the carriage rail and adapted to hold each web fixed with respect thereto with a plurality of vertically-movable pins that traverse each web in a raised position.