498 



MEMOIR OF DANIEL TKEADWELL. 



The apparatus b}' whic-!i the hemp is carried in the drawing-franio and drawn to form a filament con- 

 sists principally of two steel rollers, ss, Fig. 4. The lower roller runs in gudgeons in the i)illars it, uo ; 

 the upper roller runs in gudgeons in two levers, Q Q, hung by pins forming fulcrums or axes iu the pillar 

 pp, Fio-. 2. These leicrs are connected together by the curved iron bar, u, Figs. 2 and 4, so that one 

 cannot rise or fall unless the other rises or falls with it. The drawing-rollers ss are coupled by the 

 plates TT to the shafts uc, running in the pillars oo, and connected by the gear-wheel v v. x, Fig. 1, 

 is the o-atherer; this is made of i)lates of iron in nearly the form of an unequal four-sided pyramid, 

 with its open base towards the hatchel-points and its truncated apes opening between the drawing- 

 rollers, being so shaped as to conform to those portions of the rollers which are situated against it. 

 The top of the gatherer, y, passes off towards the bobbin-belt to receive the roving of hemp and direct it, 

 to the rollers. The top of the gatherer has several slits cut through it, so that the teeth of the comb, 8 b, 



j;y- ». 



J'v-*. 



rig. /a 



can pass through it. There is, moreover, in the gatherer .a false bottom, hung by a joint at the end 

 nearest the drawing-roUers and capable of being swung upwards like a trap-door. This false bottom has 

 slits across it, corresponding with those through the top. In Fig. 4, a is a fast pulley on the shaft b, to 

 -which the power to drive the machine is applied, by means of a belt; a> is a loose pulley on the same 

 shaft, b, on which the driving-belt runs when the machine is at rest. On the end of the shaft h is the 

 pinion c, which drives the wheel dd, fixed on the shaft u, which is coupled to the lower drawmg- 

 rollcr, s. 



