4c 4e mounted on one side is opposite the direction of rotation of the drive motors 4a 4b 4d mounted on the other side accordingly the clearances 17a 17b 17d also are mirror symmetrical with the opposite clearances 17c 17e advantageously the same plates 16 may be used with just the arrangement of the drive motors 4 and of the longitudinal guides 12 being interchanged on the base surfaces of the plates 16 the individual modules 1a through 1c affixed to the plates 42 43 can be arrayed so as to be in various relative positions furthermore the plates 42 43 can be aligned in relation to the machine frame 45 and be mounted in a commonly aligned position with respect to the frame because the apparatus is made up of a plurality of individual modules it may be rapidly and simply enlarged or made smaller as called for by adding or removing modules 1 if defective a particular module can easily be exchanged as a unit also because the drive motors 4 are mounted on the outside even for the mutually opposite design of fig5 they are directly accessible and therefore can also be easily exchanged if defective as shown by fig6 and 7 the yarn feeders 3a through 3e when in the feed position are adjacent to one another and the individual modules can be aligned such that all yarn.