PKEPARATION AND USE. 241 



roller-axles ; and the segments of the roller e are moved 

 in the same manner by cams tu, fixed to the swing- 

 frame /. The tobacco occupies the central space between 

 the 3 rollers, and the cams p r t move the segments in the 

 direction of the arrow where they touch the tobacco, 

 while the cams q s u move them back. After the tobacco 

 has passed beyond the segment-rollers, it goes through the 

 hollow trunnion of the open frame g, in which the bobbin h 

 revolves ; the other trunnion of the frame g is provided 

 with fast and loose pulleys, by which the whole machine 

 is driven. To this trunnion, are also fixed an ordinary 

 friction-break pulley, and a grooved pulley, around which 

 latter passes a band for driving the pulley on the axle 

 of the bobbin h. To the other end of the axle of the 

 bobbin, is fixed a pinion, which, by means of a toothed 

 chain, gives motion to another pinion fixed to the double 

 screw t ; this double screw gives a traversing to-and-fro 

 motion to the guide j, for distributing the tobacco 

 evenly on the bobbin, by means of a swivel T-headed 

 stud, connected with the guide, and taking into the 

 thread of the double screw. The guide is provided with 

 two horizontal grooved rollers, between which the tobacco 

 passes, and with two other rollers to guide the tobacco on 

 to the bobbin. 



Eotary motion is communicated to the segment-rollers 

 cde as follows: To the hollow trunnion of the open 

 frame g, is affixed a pinion, which drives the wheel &, 

 on the same shaft as the change-pinion that drives 

 the wheel gearing into the pinions on the axles of 

 the rollers c and <?, and one of which pinions gears 

 into the intermediate pinion /, which drives the pinions 



B 



