COMMERCIAL SEWING MACHINE Russian patent published in 1994 - IPC

FIELD: sewing industry. SUBSTANCE: sewing machine has at least two driven control shafts, which are rotatable with synchronized speeds of rotation. Cam members mounted on one shaft urge needle carriers to turn from one side to the other side under the action of mechanical motion transfer members. Sewing machine is further provided with clamping transportation devices and hooks. Cam members are formed and arranged in such a manner that provides simultaneous stitching of straight, arcuate or broken line. EFFECT: increased efficiency, wider operational capabilities and enhanced reliability in operation. 9 cl, 10 dwg