(305) While the counter faller is being freed in the manner described the downward movement of the faller is also proceeding. Referring now to Fig. 160, which is a detailed view of the faller arrangement, the faller shaft has fixed on it an arm or backing-off finger =D=, to which is fastened one end of a chain =E=. One end of =E= passes round the small bowl =F=, and its other end is fastened to a snail or scroll =G= mounted on the tin roller shaft. The snail is geared by a ratchet clutch which engages only when the tin roller is revolving during backing-off, being disengaged during the whole period of spinning. The size of the snail is arranged so as to draw down the faller finger =D= during the period of backing off to such an extent that the faller is brought into the proper position for the commencement of winding. In dealing with the latter operation it will be shown that the faller is a little below the cop nose when winding begins, and then rapidly descends until the base of the upper cone is reached. At present it is only necessary to note this fact, as it has a somewhat important bearing on the mechanism being described. During the period of the faller descent a pull is exercised on the rod =F^{ 1}=, by which the bowl or runner =F= is carried. The other end of =F= is hinged to the “locking” lever =A=, to which the curved arm or sector =C= is hinged at its upper end. This arm is fixed on the faller shaft, so that the oscillation of the latter, which is caused by the pull of the chain =E=, gradually raises the “locking” lever =A=. This elevation goes on until the shoulder or bracket =K= is high enough for its under side to slip over the small bowl fixed in the lever or slide =L=. The latter is at the end of a lever hinged at one end to the carriage and carrying the runner or bowl =L^{ 1}=. This is drawn along with the carriage, and the lever is consequently called the “trail” lever. As soon as =K= slips on to the bowl in =L= the “locking” lever and faller are said to be “locked,” and are then in a position to begin winding. This action is practically simultaneous with the termination of backing-off. This method of locking the faller is now general, having quite superseded the older method of locking at the top.