position is stored in the control circuit of the controller box and the sewing machine automatically continues the rolled hemming operation all during this time the edge of the cloth to be sewn on the guide 8d is rolled in the cloth rolling portion 8f for rolled hemming by the feeding motion of the feed dog of the sewing machine and the leftward thrust by the belt 11n transferred toward the presser foot 4 and is sewn by the needle 5 as a result a good rolled hemming can be attained automatically by establishing a predetermined relation between the feeding speed of the feed dog of the sewing machine and coercive thrust given by the peripheral speed of the belt 11n without manual operation when a cloth and detection sensor 6 on the bed slide 3 detects the cloth end as the sewing operation progresses the sewing machine stops its operation upon reception of the control signal issued by the control circuit of the controller box the presser foot 4 is raised the driving mechanism 11c operates in forward direction to turn the driving arm 11k clockwise and the pulley is raised so that the tip portion of the belt 11n is separated from the upper surface of the base portion of the guide 8d the sewing motor.