during the further course of the manufacture the rocker arm 3 is now continuously lowered which causes the bending radius to be continuously enlarged during the transition to the desired pitch of the spring a pivoting about the shaft 26 is also carried out in the area of the constant pitch the pivoted position of the shaft 26 is maintained if at the end of the finished product a cylindrical winding is to be produced again then the rocker arm 3 again pivots about the shaft 26 into a position in which the bending roller 31 is parallel to the feed rollers 9 10 certain cam plates 39 40 and a certain transmission ratio between the sprockets 53 and 51 must be adjusted for each certain coil dimension when a machine has been adjusted one obtains precisely reproducable results it is therefore possible to produce the coils with an optimum winding spacing so that on the one hand a perfect function of the coil is assured and on the other hand a coil diameter can be achieved which is as small as possible instead of a cross movement of the bending roller 31 through lifting and lowering of a rocker arm it would also be possible to use a rocker arm which can be pivoted only about an axis which is at a right angle to the strip thus for.