(304) The controlling mechanism is shown in Fig. 159, which is a representation of the parts affecting the counter faller. Hinged, as shown, to a bracket on the underside of the carriage is a lever =J=, to which are attached two chains =E^{ 1} I=. The former is coupled to a sector =E=, which is secured on the counter faller shaft or rod =B^{ 1}=. If it is assumed that the latter is free to rotate, as it is, the pull exercised by the lever =J= would be sufficient to cause it to do so. But until the winding faller makes its descent so as to assume the winding position, as afterwards described, the weight of the lever =J= is taken by the chain =I=, which at its upper end is fixed to the hook shown. The latter is hinged to the bracket or lever =S=, the other arm. of which rests upon the counter faller rod =B^{ 1}=, and thus limits the upward movement of the winding faller. A steady torsional pull is exercised upon the bracket =S=, so as to draw the chain =I= upwards, by the spring =V=, attached as shown. The unwinding of the two or three coils of yarn during backing-off takes place during the time the winding faller is descending. Immediately backing-off is completed, the carriage begins to run in, and the yarn is wound. It is therefore necessary for the counter faller to rise, so as to take up any slack yarn. Unless this is done, the yarn—owing to its tightly twisted condition—runs into small loops or kinks, technically known as “snarls.” The oscillation of the winding faller rod =B= has caused a similar movement in =S=, and, as a result, the chain =I= becomes slackened and ceases to sustain the lever =J=. As, therefore, the carriage =O= begins to run in the lever =J= descends, and the whole of its weight is borne by the chain =E^{ 1}=, which is caused to pull upon the sector =E=. In this way the counter faller rod =B^{ 1}= is oscillated, and the counter faller wire =M= is raised. The extent of its upward movement is regulated solely by the tension of the threads, which is sufficient to act as a counterbalance to the lever =J=. In order that this equilibrium shall be sufficient to preserve the necessary tightness of the threads, without any danger existing of either slack threads or of the counter faller being unyielding when an extra strain is put upon the yarn, balance weights can be added at the end of the lever =J=, as shown. In this way the necessary sustainment of the yarn threads is obtained without any likelihood of straining or breakage. When the carriage has completed its inward run the weight of the lever =J= is relieved by the roller =W=, so that the faller, when released, as afterwards described, can easily assume its proper position during spinning or twisting.