Rotary motion is communicated to the segment-rollers _c d e_ as follows:—To the hollow trunnion of the open frame _g_, is affixed a pinion, which drives the wheel _k_, on the same shaft as the change-pinion that drives the wheel gearing into the pinions on the axles of the rollers _c_ and _d_, and one of which pinions gears into the intermediate pinion _l_, which drives the pinions on the axle of the roller _e_. The driving-strap is held upon the fast pulley by a drop-catch acting on a weighted lever, one arm of which is connected by a link to the lower end of a strap fork-lever. When it is requisite to stop the machine, the attendant kicks the point of a catch off the end of the lever, which is then raised by the weight, and so moves the driving-strap from the fast to the loose pulley, the stoppage being virtually instantaneous. The mode of working is as follows:—The spinner and assistants stand at opposite sides of the table; the fillers and wrappers being placed on the table, one assistant spreads out the wrapper and pushes the end towards the filler, which the spinner supplies and holds against the sliding-rest _b_; the rotary motion of the segment-rollers _c d e_ twists the tobacco, and causes the wrapper to be wound over the filler, and the rest _b_, being movable, enables the spinner to regulate its position according to the quantity and quality of the filler and wrapper. The lateral motion of the segment-rollers passes the roll towards the bobbin, on which it is wound, as described. The combined rotary and traversing motions of the rollers consolidate the tobacco, and put the desired face upon the twist. The roller _e_ is supported in a swing-frame, which is lifted off the tobacco when starting the machine. When the machine is at work, the swing-frame is held down by the stud _m_ (Fig. 19). The figures represent a machine suitable for manufacturing Limerick roll; for pigtail and other small descriptions, it is necessary to reduce the diameter of one or more of the segment-rollers. [Illustration: FIG. 24.] [Illustration: FIG. 25.] A more recent improvement in this machine, by J. E. A. Andrew, is shown in Figs. 24 (side view), 25 (transverse section), and 26 (plan). The table _a_, rib _n_, and sliding-rest _b_, and two lower segment-rollers _c d_, are constructed as usual; but the axles of the segment-rollers revolve in bearings _g h_, bolted to the flanges of swivel-frames _i k_, hinged upon the fulcrum-shaft _x_; the object of thus supporting the bottom rollers _c d_ is to be able to vary the distance between them according to the thickness of the twist of tobacco that is being rolled. When the distance between the rollers is fixed, the bearings are secured by bolts passing through segmental slots. The solid top roller _e_ revolves in centres in sliding bearings fitting in the swing-frame _f_. [Illustration: FIG. 26.]