210 block 213 is suitably bored so as to receive and hold the cylindrical guide apparatus mounting rod 217 a set screw 220 serves to secure the mounting rod 217 to the block 213 mounting rod 217 is bored perpendicularly so as to receive the stem portion 222 of a feed folder 230 stem portion 222 is adjustably secured within mounting rod 217 by means of set screw 223 in order to adjustably limit the extent of inward movement of the feed folder 230 toward the needle 160 an adjustable abutment or set screw with locknut 224 is provided which is threaded through a section of block 213 and is adapted to be engaged as a limit stop by bracket 201 the feed folder 230 is urged or biased toward the innermost position by a suitable biasing or spring means 226 it is thus apparent that the spring means 226 normally urges the block 213 toward the needle bar 150 feed folder 230 in the illustrated embodiment of fig7 extends generally downwardly and inwardly at an angle so that the free distal end thereof may underlie the path of the sewing needle 160 when the needle occupies its raised position see fig8 referring to fig7 the feed folder 230 is shown consisting of a body portion 231 which is a hollow parallelopiped means formed with a narrow passage therethrough to receive and guide a narrow fabric r see fig8 a terminal channel shaped tip portion 232 opening upwardly and capable of supporting a narrow fabric for.