also serving as a gauge to control the size of a tubular loop being sewn from fabric material the gauge preferably being adjustable so various size tubular loops may be formed application_number US 78785977 A description the tubular loop forming tool of this invention comprises a unitary body which includes an intermediate angular or otherwise offset shank member 10 an upper vertical slotted connecting member 12 and a lower horizontal presser foot member 14 extending at right angles to the connecting member 12 the upper connecting member 12 has a pair of spaced lugs 16 adapted to engage the presser bar p of a sewing machine and to be secured thereto by means of a conventional thumb screw supplied with the machine and shown in broken lines in fig3 the shank member 10 provides clearance between the sewing machine needle n and the inner side of the presser foot member 14 as indicated by the letter 34 a 34 for receiving the excess of fabric overlying the foot member outside the switch line the clearance a may be varied as required for various widths of excess fabric by varying the angular slope or other form of offset of the shank member 10 the open edge 18 of the rear portion of the foot member 14 terminates inwardly of the sewing line s so that the line of stitching of the material.