Sewing machines with semi-automatic loop formation

Semi-automatic

— when forming a loop similarly, work is done in 2 or 4 steps. For example, in the first case, the machine makes one short bartack and one long straight stitch in one pass, then the mode switches and the second bartack and the second long straight stitch are performed; in the second case, respectively, you have to switch between 4 stages. Such work takes more time than the automatic formation of loops, but such machines are cheaper.