Apparatus for producing and well of schlauchfoermigen web of material from a

摘要

An apparatus for forming a sack from a continuous tube blank. The apparatus comprises a first carriage provided with means for gripping the edge of the mouth opening of the tube blank and for pulling said tube blank upon a filling rack and a second carriage provided with means for spreading out said mouth opening and means for transverse seaming and cutting of said tube blank when it has been pulled upon said filling rack. Said first and second carriages are displaceable mutually and with respect to said filling rack along a common path of movement.