°-o 



ot 



MEMOIR OF DANIEL TREADWELL. 



The cogwheel k, Fig. 1, fixed to the small cylinder, is driven by the pinion l, Fig. 2. 

 Over the small cylinder, just above the points of the teeth and parallel to the axis 

 of the cylinder, are several lags or staves, p p. Alternating with every row of teeth 

 is placed a rod or clearer, r r, Fig. 2 ; these rods are also parallel to the axis, 

 and extend beyond the end of the cylinder, and are kept in place by two belts 

 of leather, one at each end, to which they are secured by thongs. At each side of 

 the frame is fixed a wedge or inclined plane, tt, Figs. 1 and 2, over which the 

 ends of the rods or clearers must pass when the cylinder h revolves, and thus be 



brought near to the teeth of the great cylind 



On th 



oppo 



sid 



of the 



* 



cylinder b is a shaft having upon it a rack (p, Fig. 2, v, Fig. 3), one of the bars of 



In c K«* 



Pig. 2. 



Fig. 3. 



of the spaces between 



of teeth of the great cylinder 



To 



put the machine in operation it is only necessary to present the hemp, flax 



ub 



b 



perated 



being p 



motion in the direction of 



to the small cylinder; the great cyl 

 the arrow, the small cylinder, with \ 



ected by a proper belt, passes with 



hem 



under the lags or 



press 



the hemp i 

 rial thus carried in the teeth 



teeth 



Whe 



n 



upon it 



forward ends of the 



the point nearest the large cylind 



wedges raise the ends of the rods or clearers, and with them the hemp 



of the small cylinder, so that 



by 



the 



out of the 



struck by the teeth of the great cylinder, 



When 



the hindermos 



operation of clearing, combing, or hatchelling is performed. 



t ends of the hemp arrive at the wedges t t, the fibres slip from th 



