16 are for example motors of the asynchronous type they are supplied in parallel by means of a frequency converter 30 and are connected to one another by synchronizing means if appropriate each motor could be supplied by a frequency converter in the exemplary embodiment illustrated in the accompanying diagram such synchronizing means consist of a rigid connection 20 connecting the two shafts 17 18 to one another moreover in the example illustrated the beam 1 and the take up system 5 for the formed fabric are controlled by two individual motors 21 and 22 finally although it is possible to consider controlling members for the formation of the shed for example a dobby by means of a mechanical connection belt 23 shaft 24 according to a preferred embodiment this control is obtained by means of an individual motor 25 when the machine is started up the various members being at their starting point an increase in speed of the motors 15 16 is carried out over a plurality of revolutions of the machine with the unwinder 21 the take up 22 and the dobby 8 being at a standstill the weft 9 is then offered to the insertion gripper 10 and simultaneously the motors 21 22 25 are actuated allowing a normal weaving process after a stop which is deliberate or the result of a break when the machine is started up again where appropriate after the repair of the yarn all the motors are actuated in order to execute a return in reverse amounting to two revolutions when this has taken place the motors 15 16 are started up and are accelerated over one revolution a new.