[ *7 ] 
of the reel ; and, as the reel turns, it gives motion 
to the two wheels B and C, which are fixed upon 
one common arbre. The wheel C moves the wheel 
D, which is placed horizontal ; and this, as it re- 
volves, makes the guideftick E F play forward and 
backward in a groove made in the upright G, the 
guideftick playing freely on a pin E fixed in this 
wheel. Two threads of filk, drawn from two par- 
cels of cocoons, which lie in the copper of hot 
water R, are pafled thro’ the two loops of the flop- 
wires K and L : they then are twifted round each 
other at M, which is the fingle croiflure of the Pied- 
montefe. At M they are again feparated, and pafs 
each through its own guide-wire at N and P ; and 
from thefe they go to the reel, where, as the reel 
turns, the motion of the guideftick continually varies 
their pofition, and hinders them to be laid on the 
fame place. 
The model before you, reprefented by 'Tab. III. ex- 
hibits the new conftrudtion which I have given to this 
reel. The two wheels C and D of Tab. II. are laid 
afide as fuperfluous : the arbre Q^pafles thro’ a nich in 
an upright fupporter R, and, by a winch at its end A, 
gives motion to the guideftick. The plane of its 
motion in the Piedmontefe reel is horizontal, but 
here it is perpendicular. This perhaps made them 
think that the effedl would not be the fame ; but it 
doth not caufe any eflential difference ; and if it had, 
there was a moft eafy remedy for it. 
Here therefore the expence and trouble of making 
and adjufting two wheels and two fets of teeth are 
faved, the hazard of breaking and going out of order 
leftened, and the machine made more fimple, and 
more familiar to the underftanding. 
E 2 
As 
